local climate change impacts

[weatherpruf]

Some speculation that the losses of white cedar in S Jersey are due to over saturation from precip heavy storms. Some speculation as well that local fisheries like the winter flounder have been affected somewhat by warmer waters ( though overfishing played a role as well; for reasons that are unclear some environmental groups are reluctant to point fingers at commercial fisheries, which are a big contributor to plastic waste in the oceans, as much as 50% )and there are regular reports of southern fish species showing up in our local waters, like the poisonous southern puffer, cobia, and Spanish mackerel.

[LibertyBell]

On 4/26/2022 at 11:40 AM, weatherpruf said:

Some speculation that the losses of white cedar in S Jersey are due to over saturation from precip heavy storms. Some speculation as well that local fisheries like the winter flounder have been affected somewhat by warmer waters ( though overfishing played a role as well; for reasons that are unclear some environmental groups are reluctant to point fingers at commercial fisheries, which are a big contributor to plastic waste in the oceans, as much as 50% )and there are regular reports of southern fish species showing up in our local waters, like the poisonous southern puffer, cobia, and Spanish mackerel.

thats why I'm so glad we've seen a reduction in humidity in the past couple of springs.

this dry air is such a blessing, I'm actually able to breathe great with all the dirty water vapor gone and NO ALLERGIES

also need to remember that water vapor is a greenhouse gas just like carbon dioxide is, we need to get rid of excess amounts of both

 

[bluewave]

 

Liberty Bell
Is there any way to project where Central Park would rank on these lists if their equipment was sited better?
 

The Central Park equipment was out in the sun and away from the deep shade during the 1951-1980 climate era. So we can compare how the high temperatures during the summer have changed between EWR, NYC, and LGA since then. The tree growth over the equipment has trimmed 2° off the NYC summer high temperatures relative to EWR and LGA. This has resulted in many lost recent heat records for NYC as the record warmth dramatically increased since 2010. Central Park should be averaging 10 more annual 90° days instead of just 1 if it was out in a grassy clearing away from the deep shade and cooling foliage. 
 

2010-2021 summer high temperature warming over 1951-1980

NYC 1951-1980……83.0……2010-2021….83.5…..+0.5….should be closer to 85.5 or +2.5 away from the shade 

EWR…83.4…..85.7…+2.3

LGA….82.0…..84.6...+2.6

 

90° days change 

NYC….18……19……+1…should be +10 and 28 days a year of 90°

EWR….23....33…….+10

LGA…..15…..26…….+11

 

[etudiant]

10 hours ago, bluewave said:

 

Liberty Bell
Is there any way to project where Central Park would rank on these lists if their equipment was sited better?
 

The Central Park equipment was out in the sun and away from the deep shade during the 1951-1980 climate era. So we can compare how the high temperatures during the summer have changed between EWR, NYC, and LGA since then. The tree growth over the equipment has trimmed 2° off the NYC summer high temperatures relative to EWR and LGA. This has resulted in many lost recent heat records for NYC as the record warmth dramatically increased since 2010. Central Park should be averaging 10 more annual 90° days instead of just 1 if it was out in a grassy clearing away from the deep shade and cooling foliage. 
 

2010-2021 summer high temperature warming over 1951-1980

NYC 1951-1980……83.0……2010-2021….83.5…..+0.5….should be closer to 85.5 or +2.5 away from the shade 

EWR…83.4…..85.7…+2.3

LGA….82.0…..84.6...+2.6

 

90° days change 

NYC….18……19……+1…should be +10 and 28 days a year of 90°

EWR….23....33…….+10

LGA…..15…..26…….+11

 

Have to agree wholeheartedly, it is a significant difference, very probably caused by the unchecked tree and shrubbery growth around the CP site.

I'd thought that site alterations would be addressed by the NWS quality control, but clearly that is not the case.

Yet this seems to show a rather larger  impact than the widely discussed Time of Observation bias. Does it just get treated as a local issue without broader significance?

[LibertyBell]

5 hours ago, etudiant said:

Have to agree wholeheartedly, it is a significant difference, very probably caused by the unchecked tree and shrubbery growth around the CP site.

I'd thought that site alterations would be addressed by the NWS quality control, but clearly that is not the case.

Yet this seems to show a rather larger  impact than the widely discussed Time of Observation bias. Does it just get treated as a local issue without broader significance?

I'm not even sure what the big deal is about trimming?  Isn't that what thousands of families all over the tristate area do every year?

 

[bluewave]

13 hours ago, etudiant said:

Have to agree wholeheartedly, it is a significant difference, very probably caused by the unchecked tree and shrubbery growth around the CP site.

I'd thought that site alterations would be addressed by the NWS quality control, but clearly that is not the case.

Yet this seems to show a rather larger  impact than the widely discussed Time of Observation bias. Does it just get treated as a local issue without broader significance?

Maybe one day a high enough ranking NWS official will find this thread and look at what is going on. We seldom see meteorologists from the local Upton NWS office join in these threads. But other local forums seem to have NWS meteorologists checking in. Walt is great but he was from Mt. Holly and Boston. So we probably need a local office member to take interest in this issue. They probably don’t even realize how far the Central Park ASOS has drifted away from the more accurate readings that we used to get before the new station was installed in the mid 90s. We can see how many top 10 years there were for 90° days at EWR and LGA since 2010. But notice how most of the NYC highest totals were from before the the time of new weather station in the mid 90s. If we add the 9 missing annual days to these totals, then they are more in agreement with LGA and EWR like they used to be before the mid 90s. 

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	2010	54	0
2	1993	49	0
3	1988	43	0
4	2021	41	0
-	2002	41	0
-	1991	41	0
5	2016	40	0
	1983	40	0
-	1959	40	0
6	1994	39	0
-	1944	39	0
7	2005	37	0
-	1987	37	0
8	2018	36	0
-	1949	36	0
9	2015	35	0
10	1961	34	0

 

Time Series Summary for LAGUARDIA AIRPORT, NY - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	2010	48	0
2	2018	38	0
3	2002	35	0
4	2020	34	0
-	1991	34	0
5	2016	32	0
6	1983	31	0
7	2005	30	0
-	1953	30	0
8	1955	29	0
-	1944	29	0
9	2012	28	0
-	1949	28	0
10	1959	27	0

 

NYC uncorrected top 10 years for 90 days

 

Time Series Summary for NY CITY CENTRAL PARK, NY - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	1993	39	0
-	1991	39	0
2	2010	37	0
-	1944	37	0
3	1983	36	0
4	1966	35	0
5	2002	32	0
-	1988	32	0
-	1980	32	0
-	1953	32	0
6	1995	29	0
-	1961	29	0
-	1949	29	0
-	1941	29	1
7	1943	28	0
8	1999	27	0
-	1959	27	0
9	1936	26	0
10	1955	25	0

 

NYC corrected more recent top 10s

 

Time Series Summary for NY CITY CENTRAL PARK, NY - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	2010	46	0
-	1991	39	0
2	1993	39	0
3	1944	37	0
	2002	37	0
4	1983	36	0
5	1966	35	0
6	2005	32	0
-	1980	32	0
-	1953	32	0
	2002	32	0
7	2016	31	0
8	2018	30	0
9	1941	29	1
	1949	29	0
	2020	29	0
10	1943	28

[LibertyBell]

18 hours ago, bluewave said:

Maybe one day a high enough ranking NWS official will find this thread and look at what is going on. We seldom see meteorologists from the local Upton NWS office join in these threads. But other local forums seem to have NWS meteorologists checking in. Walt is great but he was from Mt. Holly and Boston. So we probably need a local office member to take interest in this issue. They probably don’t even realize how far the Central Park ASOS has drifted away from the more accurate readings that we used to get before the new station was installed in the mid 90s. We can see how many top 10 years there were for 90° days at EWR and LGA since 2010. But notice how most of the NYC highest totals were from before the the time of new weather station in the mid 90s. If we add the 9 missing annual days to these totals, then they are more in agreement with LGA and EWR like they used to be before the mid 90s. 

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	2010	54	0
2	1993	49	0
3	1988	43	0
4	2021	41	0
-	2002	41	0
-	1991	41	0
5	2016	40	0
	1983	40	0
-	1959	40	0
6	1994	39	0
-	1944	39	0
7	2005	37	0
-	1987	37	0
8	2018	36	0
-	1949	36	0
9	2015	35	0
10	1961	34	0

 

Time Series Summary for LAGUARDIA AIRPORT, NY - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	2010	48	0
2	2018	38	0
3	2002	35	0
4	2020	34	0
-	1991	34	0
5	2016	32	0
6	1983	31	0
7	2005	30	0
-	1953	30	0
8	1955	29	0
-	1944	29	0
9	2012	28	0
-	1949	28	0
10	1959	27	0

 

NYC uncorrected top 10 years for 90 days

 

Time Series Summary for NY CITY CENTRAL PARK, NY - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	1993	39	0
-	1991	39	0
2	2010	37	0
-	1944	37	0
3	1983	36	0
4	1966	35	0
5	2002	32	0
-	1988	32	0
-	1980	32	0
-	1953	32	0
6	1995	29	0
-	1961	29	0
-	1949	29	0
-	1941	29	1
7	1943	28	0
8	1999	27	0
-	1959	27	0
9	1936	26	0
10	1955	25	0

 

NYC corrected more recent top 10s

 

Time Series Summary for NY CITY CENTRAL PARK, NY - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	2010	46	0
-	1991	39	0
2	1993	39	0
3	1944	37	0
	2002	37	0
4	1983	36	0
5	1966	35	0
6	2005	32	0
-	1980	32	0
-	1953	32	0
	2002	32	0
7	2016	31	0
8	2018	30	0
9	1941	29	1
	1949	29	0
	2020	29	0
10	1943	28

But Lee Goldberg has mentioned it multiple times.  I think it's obvious to them-- and I read somewhere that they mentioned it to park officials but the park people just wont do it.  At this point I dont see any solutions outside of manually relocating the equipment-- do you?

It's so obvious there is no way they don't know what's going on.

On a different subject-- Chris, can you list JFK's top 90 degree day years?  I think they would be 2010, 2002 and 1983?

1944 must have been an amazing summer- big heat and capped off with the Great Atlantic Hurricane!  By the way did you notice that even after adding those extra 90 degree days, 2010 still stands out way ahead of every other year and no other recent year is above 7th at Central Park?

 

 

[bluewave]

4 hours ago, LibertyBell said:

But Lee Goldberg has mentioned it multiple times.  I think it's obvious to them-- and I read somewhere that they mentioned it to park officials but the park people just wont do it.  At this point I dont see any solutions outside of manually relocating the equipment-- do you?

It's so obvious there is no way they don't know what's going on.

On a different subject-- Chris, can you list JFK's top 90 degree day years?  I think they would be 2010, 2002 and 1983?

1944 must have been an amazing summer- big heat and capped off with the Great Atlantic Hurricane!  By the way did you notice that even after adding those extra 90 degree days, 2010 still stands out way ahead of every other year and no other recent year is above 7th at Central Park?

 

 

The big 90° day leader at JFK las well as our other stations was 2010. But you can see how many top 10s there were in recent years. I bolded the 6 top 10 years since the post 2010 much warmer period began,

 

Time Series Summary for JFK INTERNATIONAL AIRPORT, NY - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	2010	32	0
2	1983	26	0
3	2002	21	0
4	1971	18	0
-	1949	18	0
5	2005	17	0
-	1991	17	0
6	2012	16	0
-	1959	16	3
-	1955	16	2
7	2016	15	0
-	1995	15	0
-	1961	15	0
8	1999	14	0
-	1988	14	0
-	1966	14	0
-	1952	14	0
9	2011	13	0
-	1993	13	0
-	1984	13	0
-	1977	13	0
-	1970	13	0
-	1969	13	0
-	1963	13	0
10	2020	12	0
-	2015	12	0
-	2006	12	0
-	2003	12	0
-	1978	12	0
-	1968	12	0
-	1953	12	0

[rclab]

On 5/3/2022 at 8:42 AM, bluewave said:

 

Liberty Bell
Is there any way to project where Central Park would rank on these lists if their equipment was sited better?
 

The Central Park equipment was out in the sun and away from the deep shade during the 1951-1980 climate era. So we can compare how the high temperatures during the summer have changed between EWR, NYC, and LGA since then. The tree growth over the equipment has trimmed 2° off the NYC summer high temperatures relative to EWR and LGA. This has resulted in many lost recent heat records for NYC as the record warmth dramatically increased since 2010. Central Park should be averaging 10 more annual 90° days instead of just 1 if it was out in a grassy clearing away from the deep shade and cooling foliage. 
 

2010-2021 summer high temperature warming over 1951-1980

NYC 1951-1980……83.0……2010-2021….83.5…..+0.5….should be closer to 85.5 or +2.5 away from the shade 

EWR…83.4…..85.7…+2.3

LGA….82.0…..84.6...+2.6

 

90° days change 

NYC….18……19……+1…should be +10 and 28 days a year of 90°

EWR….23....33…….+10

LGA…..15…..26…….+11

 

 

On 5/4/2022 at 7:39 AM, bluewave said:

Maybe one day a high enough ranking NWS official will find this thread and look at what is going on. We seldom see meteorologists from the local Upton NWS office join in these threads. But other local forums seem to have NWS meteorologists checking in. Walt is great but he was from Mt. Holly and Boston. So we probably need a local office member to take interest in this issue. They probably don’t even realize how far the Central Park ASOS has drifted away from the more accurate readings that we used to get before the new station was installed in the mid 90s. We can see how many top 10 years there were for 90° days at EWR and LGA since 2010. But notice how most of the NYC highest totals were from before the the time of new weather station in the mid 90s. If we add the 9 missing annual days to these totals, then they are more in agreement with LGA and EWR like they used to be before the mid 90s. 

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	2010	54	0
2	1993	49	0
3	1988	43	0
4	2021	41	0
-	2002	41	0
-	1991	41	0
5	2016	40	0
	1983	40	0
-	1959	40	0
6	1994	39	0
-	1944	39	0
7	2005	37	0
-	1987	37	0
8	2018	36	0
-	1949	36	0
9	2015	35	0
10	1961	34	0

 

Time Series Summary for LAGUARDIA AIRPORT, NY - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	2010	48	0
2	2018	38	0
3	2002	35	0
4	2020	34	0
-	1991	34	0
5	2016	32	0
6	1983	31	0
7	2005	30	0
-	1953	30	0
8	1955	29	0
-	1944	29	0
9	2012	28	0
-	1949	28	0
10	1959	27	0

 

NYC uncorrected top 10 years for 90 days

 

Time Series Summary for NY CITY CENTRAL PARK, NY - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	1993	39	0
-	1991	39	0
2	2010	37	0
-	1944	37	0
3	1983	36	0
4	1966	35	0
5	2002	32	0
-	1988	32	0
-	1980	32	0
-	1953	32	0
6	1995	29	0
-	1961	29	0
-	1949	29	0
-	1941	29	1
7	1943	28	0
8	1999	27	0
-	1959	27	0
9	1936	26	0
10	1955	25	0

 

NYC corrected more recent top 10s

 

Time Series Summary for NY CITY CENTRAL PARK, NY - Jan through Dec
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Number of Days Max Temperature >= 90	Missing Count
1	2010	46	0
-	1991	39	0
2	1993	39	0
3	1944	37	0
	2002	37	0
4	1983	36	0
5	1966	35	0
6	2005	32	0
-	1980	32	0
-	1953	32	0
	2002	32	0
7	2016	31	0
8	2018	30	0
9	1941	29	1
	1949	29	0
	2020	29	0
10	1943	28

Good afternoon BW, Liberty. After reading all the discussion on the CPK ASOS, I decided to reach out again to the ASOS group of the NWS. I mentioned the Board and the ongoing data concerns of our professional, well qualified/versed and regular members. To his credit Mr Boutin answered within a half hour. Below is his reply. Stay well all, as always ….

 

 

[bluewave]

55 minutes ago, rclab said:

Good afternoon BW, Liberty. After reading all the discussion on the CPK ASOS, I decided to reach out again to the ASOS group of the NWS. I mentioned the Board and the ongoing data concerns of our professional, well qualified/versed and regular members. To his credit Mr Boutin answered within a half hour. Below is his reply. Stay well all, as always …

Feel free to cut and paste, copy, or take screen shots of the posts in this thread. I put out this data and analysis  for everyone to freely share. You can add the post below to an email and send it along to him. 
 

The Central Park equipment was out in the sun and away from the deep shade during the 1951-1980 climate era. So we can compare how the high temperatures during the summer have changed between EWR, NYC, and LGA since then. The tree growth over the equipment has trimmed 2° off the NYC summer high temperatures relative to EWR and LGA. This has resulted in many lost recent heat records for NYC as the record warmth dramatically increased since 2010. Central Park should be averaging 10 more annual 90° days instead of just 1 if it was out in a grassy clearing away from the deep shade and cooling foliage. This error in temperature measurement became obvious after the mid 90s ASOS installation in NYC Central Park.
 

2010-2021 summer high temperature warming over 1951-1980

NYC 1951-1980……83.0……2010-2021….83.5…..+0.5….should be closer to 85.5 or +2.5 away from the shade 

EWR…83.4…..85.7…+2.3

LGA….82.0…..84.6...+2.6

 

90° days change 

NYC….18……19……+1…should be +10 and 28 days a year of 90°

EWR….23....33…….+10

LGA…..15…..26…….+11

Link to photos and news stories on overgrowth of vegetation around the sensors

 

http://www.weather2000.com/ASOS/NYC_ASOS.html

[uncle W]

1 hour ago, bluewave said:

Feel free to cut and paste, copy, or take screen shots of the posts in this thread. I put out this data and analysis  for everyone to freely share. You can add the post below to an email and send it along to him. 
 

The Central Park equipment was out in the sun and away from the deep shade during the 1951-1980 climate era. So we can compare how the high temperatures during the summer have changed between EWR, NYC, and LGA since then. The tree growth over the equipment has trimmed 2° off the NYC summer high temperatures relative to EWR and LGA. This has resulted in many lost recent heat records for NYC as the record warmth dramatically increased since 2010. Central Park should be averaging 10 more annual 90° days instead of just 1 if it was out in a grassy clearing away from the deep shade and cooling foliage. This error in temperature measurement became obvious after the mid 90s ASOS installation in NYC Central Park.
 

2010-2021 summer high temperature warming over 1951-1980

NYC 1951-1980……83.0……2010-2021….83.5…..+0.5….should be closer to 85.5 or +2.5 away from the shade 

EWR…83.4…..85.7…+2.3

LGA….82.0…..84.6...+2.6

 

90° days change 

NYC….18……19……+1…should be +10 and 28 days a year of 90°

EWR….23....33…….+10

LGA…..15…..26…….+11

Link to photos and news stories on overgrowth of vegetation around the sensors

 

http://www.weather2000.com/ASOS/NYC_ASOS.html

I think it keeps minimums up also...when the weather service moved operations over 50 miles east the obs went down hill...

[rclab]

3 hours ago, bluewave said:

Feel free to cut and paste, copy, or take screen shots of the posts in this thread. I put out this data and analysis  for everyone to freely share. You can add the post below to an email and send it along to him. 
 

The Central Park equipment was out in the sun and away from the deep shade during the 1951-1980 climate era. So we can compare how the high temperatures during the summer have changed between EWR, NYC, and LGA since then. The tree growth over the equipment has trimmed 2° off the NYC summer high temperatures relative to EWR and LGA. This has resulted in many lost recent heat records for NYC as the record warmth dramatically increased since 2010. Central Park should be averaging 10 more annual 90° days instead of just 1 if it was out in a grassy clearing away from the deep shade and cooling foliage. This error in temperature measurement became obvious after the mid 90s ASOS installation in NYC Central Park.
 

2010-2021 summer high temperature warming over 1951-1980

NYC 1951-1980……83.0……2010-2021….83.5…..+0.5….should be closer to 85.5 or +2.5 away from the shade 

EWR…83.4…..85.7…+2.3

LGA….82.0…..84.6...+2.6

 

90° days change 

NYC….18……19……+1…should be +10 and 28 days a year of 90°

EWR….23....33…….+10

LGA…..15…..26…….+11

Link to photos and news stories on overgrowth of vegetation around the sensors

 

http://www.weather2000.com/ASOS/NYC_ASOS.html

 

3 hours ago, bluewave said:

Feel free to cut and paste, copy, or take screen shots of the posts in this thread. I put out this data and analysis  for everyone to freely share. You can add the post below to an email and send it along to him. 
 

The Central Park equipment was out in the sun and away from the deep shade during the 1951-1980 climate era. So we can compare how the high temperatures during the summer have changed between EWR, NYC, and LGA since then. The tree growth over the equipment has trimmed 2° off the NYC summer high temperatures relative to EWR and LGA. This has resulted in many lost recent heat records for NYC as the record warmth dramatically increased since 2010. Central Park should be averaging 10 more annual 90° days instead of just 1 if it was out in a grassy clearing away from the deep shade and cooling foliage. This error in temperature measurement became obvious after the mid 90s ASOS installation in NYC Central Park.
 

2010-2021 summer high temperature warming over 1951-1980

NYC 1951-1980……83.0……2010-2021….83.5…..+0.5….should be closer to 85.5 or +2.5 away from the shade 

EWR…83.4…..85.7…+2.3

LGA….82.0…..84.6...+2.6

 

90° days change 

NYC….18……19……+1…should be +10 and 28 days a year of 90°

EWR….23....33…….+10

LGA…..15…..26…….+11

Link to photos and news stories on overgrowth of vegetation around the sensors

 

http://www.weather2000.com/ASOS/NYC_ASOS.html

Good afternoon BW. I must confess, without thinking of the proper etiquette, I did attach a screen shot of your post in my letter to Mr Boutin. I have attached two screen shots to show my rather wordy letter. I even mentioned how some of our members had volunteered to do the pruning. I could just imagine Will showing up with a chain saw in a hockey mask. The way things are going lately, he might not even stand out. Thank you BW for the okay on the good to share forum post data. Mr. Boutin gave me the office number and a cell phone number. Perhaps, if he ever has the time, he may peruse the forums. As always, here’s hoping ….

[uncle W]

one way to see what the difference is between the wooded Central Park obs site is to set up a thermometer in an open area of the park on a hot Sunny day...put a radiation shield on a pole during the hottest part of the day...then compare...

[LibertyBell]

4 hours ago, uncle W said:

one way to see what the difference is between the wooded Central Park obs site is to set up a thermometer in an open area of the park on a hot Sunny day...put a radiation shield on a pole during the hottest part of the day...then compare...

Yep this is why I said the old equipment should've been kept as backup and to compare lol

[bluewave]

16 hours ago, uncle W said:

I think it keeps minimums up also...when the weather service moved operations over 50 miles east the obs went down hill...

The NYC Central Park minimum JJA average temperature rise between 1951-1980 and 2010-2021 actually matches the other stations. So this is how we can see that the dense foliage is blocking the sun during the daytime. I included all our major weather stations in the analysis below. It’s interesting that the stations on the Long Island Sound saw the greatest minimum temperature increase. So LGA and BDR are our only stations with a 3° low temperature increase.

1951-1980 to 2010-2021 JJA average temperature increase 

NYC….max….+0.5….min +2.3

EWR….max…+2.3…..min…+2.3…identical to NYC Central Park

LGA…..max….+2.6….min….+3.2

JFK……max....+2.2…min….+2.4

ISP…….max…..+2.7….min….+2.7……records start in 1964

BDR…..max…..+2.1…..min……+3.1…similar to LGA

[uncle W]

10 hours ago, LibertyBell said:

Yep this is why I said the old equipment should've been kept as backup and to compare lol

I'd do it myself if I lived near the Park...

[uncle W]

On 4/29/2022 at 10:18 AM, LibertyBell said:

thats why I'm so glad we've seen a reduction in humidity in the past couple of springs.

this dry air is such a blessing, I'm actually able to breathe great with all the dirty water vapor gone and NO ALLERGIES

also need to remember that water vapor is a greenhouse gas just like carbon dioxide is, we need to get rid of excess amounts of both

 

plant trees...

[LibertyBell]

15 hours ago, bluewave said:

The NYC Central Park minimum JJA average temperature rise between 1951-1980 and 2010-2021 actually matches the other stations. So this is how we can see that the dense foliage is blocking the sun during the daytime. I included all our major weather stations in the analysis below. It’s interesting that the stations on the Long Island Sound saw the greatest minimum temperature increase. So LGA and BDR are our only stations with a 3° low temperature increase.

1951-1980 to 2010-2021 JJA average temperature increase 

NYC….max….+0.5….min +2.3

EWR….max…+2.3…..min…+2.3…identical to NYC Central Park

LGA…..max….+2.6….min….+3.2

JFK……max....+2.2…min….+2.4

ISP…….max…..+2.7….min….+2.7……records start in 1964

BDR…..max…..+2.1…..min……+3.1…similar to LGA

This data should be sent to them-- also look at how JFK and EWR are almost exactly alike!  They should be used for our most accurate data-- LGA is too hot and NYC is too cold

 

[bluewave]

We can clearly identify the mid 1990s into the early 2000s  as the period when the trees began to cover the Central Park equipment. From the 1950s through the early 1990s, NYC would record 90 degree days in reasonable agreement with either EWR or LGA. Then NYC fell far behind during the 2000s when tree growth caused the high temperature readings to become unreliable. 
 

Sample years for 90 days since 1955

1955

EWR…32

NYC….25

LGA…..29

1966

EWR….33

NYC….35

LGA….25

1977

EWR….26

NYC….23

LGA…..14

1980

EWR…27

NYC…32

LGA….22

1983

EWR…40

NYC…36

LGA….31

1988

EWR….43

NYC….32

LGA…..26

1991

EWR…41

NYC…39

LGA….34

1999

EWR….33

NYC….27

LGA….26

2005

EWR….37

NYC….23

LGA…..30

2006

EWR…..27

NYC…..8

LGA……22

2010

NYC…54

NYC….37

LGA….48

2016

EWR….40

NYC…..22

LGA…..32

2020

EWR….31

NYC….20

LGA…..34

2021

EWR….41

NYC…..17

LGA…..25

[LibertyBell]

6 hours ago, bluewave said:

We can clearly identify the mid 1990s into the early 2000s  as the period when the trees began to cover the Central Park equipment. From the 1950s through the early 1990s, NYC would record 90 degree days in reasonable agreement with either EWR or LGA. Then NYC fell far behind during the 2000s when tree growth caused the high temperature readings to become unreliable. 
 

Sample years for 90 days since 1955

1955

EWR…32

NYC….25

LGA…..29

1966

EWR….33

NYC….35

LGA….25

1977

EWR….26

NYC….23

LGA…..14

1980

EWR…27

NYC…32

LGA….22

1983

EWR…40

NYC…36

LGA….31

1988

EWR….43

NYC….32

LGA…..26

1991

EWR…41

NYC…39

LGA….34

1999

EWR….33

NYC….27

LGA….26

2005

EWR….37

NYC….23

LGA…..30

2006

EWR…..27

NYC…..8

LGA……22

2010

NYC…54

NYC….37

LGA….48

2016

EWR….40

NYC…..22

LGA…..32

2020

EWR….31

NYC….20

LGA…..34

2021

EWR….41

NYC…..17

LGA…..25

Chris, can you include the JFK numbers in this list too-- I have a feeling the 11 year pattern was very nice to JFK too-- also, do you have records for 1944?  That was when the 11 yr pattern really started.  Also, for 2002, since that was the hottest year for the first decade of the 2000s?

 

 

[LibertyBell]

wow somehow in 1966 and 1980 NYC had the most 90 degree days in the entire area?

[bluewave]

1 hour ago, LibertyBell said:

wow somehow in 1966 and 1980 NYC had the most 90 degree days in the entire area?

Yes. The most among the major sites like NYC, EWR, and LGA. Central Park would regularly tie or lead for the most 90° days from the 1930s to 1980. But the tree growth over the equipment has prevented it from happening since 1980. If the station  was properly maintained, NYC could have lead the area or tied for the most 90° days several years since then.

Years when Central Park lead or tied for most 90° days 

1936

NYC….26

EWR….22

1937

NYC…22

EWR…22

1939

NYC…24

EWR…24

1941

NYC…29

EWR…27

1953

NYC….32

EWR….32

1962

NYC….18

EWR….14

1966

NYC…35

EWR….33

1967

NYC…..9

EWR….7

1969

NYC….16

EWR…15

1970

NYC…29

EWR….29

1976

NYC…15

EWR..15

1980

NYC…32

EWR…27

[LibertyBell]

15 minutes ago, bluewave said:

Yes. The most among the major sites like NYC, EWR, and LGA. Central Park would regularly tie or lead for the most 90° days from the 1930s to 1980. But the tree growth over the equipment has prevented it from happening since 1980. If the station  was properly maintained, NYC could have lead the area or tied for the most 90° days several years since then.

Years when Central Park lead or tied for most 90° days 

1936

NYC….26

EWR….22

1937

NYC…22

EWR…22

1939

NYC…24

EWR…24

1941

NYC…29

EWR…27

1953

NYC….32

EWR….32

1962

NYC….18

EWR….14

1966

NYC…35

EWR….33

1967

NYC…..9

EWR….7

1969

NYC….16

EWR…15

1970

NYC…29

EWR….29

1976

NYC…15

EWR..15

1980

NYC…32

EWR…27

Chris, has JFK ever had the most 90 degree days?  They were close to the lead in a few of those years.

 

[uncle W]

Central Park became the official NYC weather obs site in 1961...Before that it was 17 Battery place in lower Manhattan...some days had big differences in temps or precip...max temps for very hot days were 4-8 degrees cooler than Central Park...snowfall was a little lower on average at the Battery, but minimums were a little higher...July 1936 was 106 in Central Park...102 at the Battery...1944 was 102 in CP but only 96 at the Battery...March 1958 saw 12" of wet snow in Central Park but only 7" at the Battery...

[LibertyBell]

2 hours ago, uncle W said:

Central Park became the official NYC weather obs site in 1961...Before that it was 17 Battery place in lower Manhattan...some days had big differences in temps or precip...max temps for very hot days were 4-8 degrees cooler than Central Park...snowfall was a little lower on average at the Battery, but minimums were a little higher...July 1936 was 106 in Central Park...102 at the Battery...1944 was 102 in CP but only 96 at the Battery...March 1958 saw 12" of wet snow in Central Park but only 7" at the Battery...

The Battery sounds more like JFK climo lol

[bluewave]

14 hours ago, LibertyBell said:

Chris, has JFK ever had the most 90 degree days?  They were close to the lead in a few of those years.

 

The sea breeze makes it difficult for coastal sections to lead on 90° days. But JFK has become the high dewpoint leader in recent years. ISP has also seen a dramatic increase in 75° Miami Dewpoint days. Notice how many top years there have been since the super El Niño.

Top years with the most 75° dewpoint days

JFK

43…2018

26….2019

24….1983

19….2016

18….2021

18….1999

17….2020

17….2017

17….1995

16….1984

15….1988

15…..1987

13….2012

13….1959

13….1955

11….2005

11….1991

 

ISP

34….2018

26….2020

22….2021

19….2005

18….2019

15…1979

15…1975

14….1998

14….1995

13…2016

13…2002

11…1999

10…2001

10…1990

10…1988

10…1987

 

[LibertyBell]

17 minutes ago, bluewave said:

The sea breeze makes it difficult for coastal sections to lead on 90° days. But JFK has become the high dewpoint leader in recent years. ISP has also seen a dramatic increase in 75° Miami Dewpoint days. Notice how many top years there have been since the super El Niño.

Top years with the most 75° dewpoint days

JFK

43…2018

26….2019

24….1983

19….2016

18….2021

18….1999

17….2020

17….2017

17….1995

16….1984

15….1988

15…..1987

13….2012

13….1959

13….1955

11….2005

11….1991

 

ISP

34….2018

26….2020

22….2021

19….2005

18….2019

15…1979

15…1975

14….1998

14….1995

13…2016

13…2002

11…1999

10…2001

10…1990

10…1988

10…1987

 

That 43 in 2018 stands out like a sore thumb-- that must be some kind of record at our latitude.

Oh a better question to ask might be, how many times has JFK beat either NYC or LGA in 90 degree days?

[bluewave]

2 hours ago, LibertyBell said:

That 43 in 2018 stands out like a sore thumb-- that must be some kind of record at our latitude.

Oh a better question to ask might be, how many times has JFK beat either NYC or LGA in 90 degree days?

I haven’t found any instances of JFK having more 90° days than LGA or EWR. JFK and several Long Island stations beat Central Park in 2006. But we know it’s due to the trees and vegetation artificially cooling the NYC readings .That was a few years after the 2003 news report on the inaccurate NYC temperatures. So this issue has been known for over 20 years now without any response.

 

Central Park Weather: Vegetative Overgrowth Affecting Weather Readings - WABC-TV

(New York-WABC, August 22, 2003) - Forecasting the weather is not easy.
Government equipment can often be blamed for giving faulty weather
information. As Bill Evans explains, a big culprit may be some of the
equipment buried in Central Park.

Rainfall, snowfall, and the temperature are all vital information
recorded 24 hours a day at the weather station located in the heart of
Central Park.

But meteorologists like Michael Schlacter have serious concerns about the
accuracy of the stations data. It sits amid overgrown vegetation and he
says thats the problem. The leaves can trigger snow gauges and trees can
warp rain and wind measurements. On this hot day, a temperature gauge is
in the shade instead of direct sunlight.

Michael Schlacter, Weather 2000: "Its kind of like driving a car
without a speedometer, odometer, and gas gauge. You are running with
false information."

The weather instruments at Belvedere Castle have long adorned the top.
There used to be a government meteorologist here in the city to keep an
eye on them. But now the nearest meteorologist is 60 miles that way.

But National Weather Service meteorologists say they knew the weather
readings in the park would never be as keenly accurate as the ones at
the airports where guidelines prevent foliage from being within 100 feet
of the station.

Schlacter: "We knew that at times we would have flaky readings, that
leaves would fall in gauges, that we would have problems with
visibility sensors."

[NWS Meteorologist-in-Charge Michael] Wyllie says the weather station is
there because it was historically significant to maintain its presence
in the park.

He says theres been a lot of growth because of the wet spring at so much
in fact that temperatures have routinely been recorded lower in the park
than at the airports.

Wyllie: "We are actually having a micro climate system there because of
the vegetation."

Imperfect perhaps but nonetheless the system provides the official record
of weather for the country's largest city. And Michael Schlacter says
its a city that deserves better.

Schlacter: "I think New Yorkers deserve a lot better, and I think they
deserve the best weather station money can buy."


Copyright 2003 ABC Inc., WABC-TV Inc.

 

Data for January 1, 2006 through December 31, 2006
Click column heading to sort ascending, click again to sort descending.

State	Name	Station Type	Number of Days Max Temperature >= 90
NJ	PLAINFIELD	COOP	30
NJ	HARRISON	COOP	30
NJ	TETERBORO AIRPORT	WBAN	30
NJ	NEWARK LIBERTY INTL AP	WBAN	27
NJ	CRANFORD	COOP	24
NJ	MIDLAND PARK	COOP	24
NJ	CANOE BROOK	COOP	22
NY	LAGUARDIA AIRPORT	WBAN	22
NY	BRONX	COOP	21
CT	DANBURY	COOP	20
NY	DOBBS FERRY-ARDSLEY	COOP	18
NY	WEST POINT	COOP	18
NJ	CALDWELL ESSEX COUNTY AP	WBAN	16
NY	MINEOLA	COOP	16
NY	NEW YORK AVE V BROOKLYN	COOP	15
NY	PORT JERVIS	COOP	13
NY	WANTAGH CEDAR CREEK	COOP	13
CT	NORWICH PUBLIC UTILITY PLANT	COOP	12
NY	JFK INTERNATIONAL AIRPORT	WBAN	12
NJ	ESSEX FELLS SERVICE BLDG	COOP	11
NY	SHIRLEY BROOKHAVEN AIRPORT	WBAN	11
CT	MERIDEN MARKHAM MUNICIPAL AP	WBAN	11
NY	ISLIP-LI MACARTHUR AP	WBAN	10
NY	MONTGOMERY ORANGE COUNTY AP	WBAN	10
NY	RIVERHEAD RESEARCH FARM	COOP	9
NY	MIDDLETOWN 2 NW	COOP	9
NY	FARMINGDALE REPUBLIC AP	WBAN	9
NY	NY CITY CENTRAL PARK	WBAN	8
NY	WESTHAMPTON GABRESKI AP	WBAN	8

[LibertyBell]

16 hours ago, bluewave said:

I haven’t found any instances of JFK having more 90° days than LGA or EWR. JFK and several Long Island stations beat Central Park in 2006. But we know it’s due to the trees and vegetation artificially cooling the NYC readings .That was a few years after the 2003 news report on the inaccurate NYC temperatures. So this issue has been known for over 20 years now without any response.

 

Central Park Weather: Vegetative Overgrowth Affecting Weather Readings - WABC-TV

(New York-WABC, August 22, 2003) - Forecasting the weather is not easy.
Government equipment can often be blamed for giving faulty weather
information. As Bill Evans explains, a big culprit may be some of the
equipment buried in Central Park.

Rainfall, snowfall, and the temperature are all vital information
recorded 24 hours a day at the weather station located in the heart of
Central Park.

But meteorologists like Michael Schlacter have serious concerns about the
accuracy of the stations data. It sits amid overgrown vegetation and he
says thats the problem. The leaves can trigger snow gauges and trees can
warp rain and wind measurements. On this hot day, a temperature gauge is
in the shade instead of direct sunlight.

Michael Schlacter, Weather 2000: "Its kind of like driving a car
without a speedometer, odometer, and gas gauge. You are running with
false information."

The weather instruments at Belvedere Castle have long adorned the top.
There used to be a government meteorologist here in the city to keep an
eye on them. But now the nearest meteorologist is 60 miles that way.

But National Weather Service meteorologists say they knew the weather
readings in the park would never be as keenly accurate as the ones at
the airports where guidelines prevent foliage from being within 100 feet
of the station.

Schlacter: "We knew that at times we would have flaky readings, that
leaves would fall in gauges, that we would have problems with
visibility sensors."

[NWS Meteorologist-in-Charge Michael] Wyllie says the weather station is
there because it was historically significant to maintain its presence
in the park.

He says theres been a lot of growth because of the wet spring at so much
in fact that temperatures have routinely been recorded lower in the park
than at the airports.

Wyllie: "We are actually having a micro climate system there because of
the vegetation."

Imperfect perhaps but nonetheless the system provides the official record
of weather for the country's largest city. And Michael Schlacter says
its a city that deserves better.

Schlacter: "I think New Yorkers deserve a lot better, and I think they
deserve the best weather station money can buy."


Copyright 2003 ABC Inc., WABC-TV Inc.

 

Data for January 1, 2006 through December 31, 2006
Click column heading to sort ascending, click again to sort descending.

State	Name	Station Type	Number of Days Max Temperature >= 90
NJ	PLAINFIELD	COOP	30
NJ	HARRISON	COOP	30
NJ	TETERBORO AIRPORT	WBAN	30
NJ	NEWARK LIBERTY INTL AP	WBAN	27
NJ	CRANFORD	COOP	24
NJ	MIDLAND PARK	COOP	24
NJ	CANOE BROOK	COOP	22
NY	LAGUARDIA AIRPORT	WBAN	22
NY	BRONX	COOP	21
CT	DANBURY	COOP	20
NY	DOBBS FERRY-ARDSLEY	COOP	18
NY	WEST POINT	COOP	18
NJ	CALDWELL ESSEX COUNTY AP	WBAN	16
NY	MINEOLA	COOP	16
NY	NEW YORK AVE V BROOKLYN	COOP	15
NY	PORT JERVIS	COOP	13
NY	WANTAGH CEDAR CREEK	COOP	13
CT	NORWICH PUBLIC UTILITY PLANT	COOP	12
NY	JFK INTERNATIONAL AIRPORT	WBAN	12
NJ	ESSEX FELLS SERVICE BLDG	COOP	11
NY	SHIRLEY BROOKHAVEN AIRPORT	WBAN	11
CT	MERIDEN MARKHAM MUNICIPAL AP	WBAN	11
NY	ISLIP-LI MACARTHUR AP	WBAN	10
NY	MONTGOMERY ORANGE COUNTY AP	WBAN	10
NY	RIVERHEAD RESEARCH FARM	COOP	9
NY	MIDDLETOWN 2 NW	COOP	9
NY	FARMINGDALE REPUBLIC AP	WBAN	9
NY	NY CITY CENTRAL PARK	WBAN	8
NY	WESTHAMPTON GABRESKI AP	WBAN	8

What I don't get is that they are acting like they are helpless to do anything about it-- when there is such an easy solution.  Trim or chop down the excess foliage!  What exactly is keeping them from doing that?

 

[bluewave]

3 hours ago, LibertyBell said:

What I don't get is that they are acting like they are helpless to do anything about it-- when there is such an easy solution.  Trim or chop down the excess foliage!  What exactly is keeping them from doing that?

 

You would have to ask them that question. We don’t see anyone from the Upton posting on this forum. Albany just corrected their cold bias. 
 

To the Editor:
If you have been following the latest monthly temperature trends, as provided by the National Weather Service, you might have noticed that we have had five months with below normal average temperatures, and only two that have been above this year (January and March).

In fact, if you go back to last year, you might have noticed a “cooling” beginning in August, as three out of the six last months of 2020 finished below normal. This was happening at the same time that many of the same months were close to record high levels worldwide. 

The National Weather Service issued its new 30-year climate averages in July 2021 (including the average temperature of the years 1991 to to 2020). This new set of averages indicated many of our monthly averages have warmed nearly a degree compared to the 1981-2010 averages. This would account for some of the cooler departures in recent months. A persistent trough has settled into the region for much of this time, accounting for some local cooling.

However, a much bigger concern is the actual thermometer located at the Albany International Airport. In July 2020, it was discovered that it had been running a degree too warm. The sensor was replaced and it was immediately noted it was running about three degrees too low (cool).

It took until mid-October 2020 for it to be replaced, but alas, the new replacement still appears to still be running at least two degrees too low. There are no signs of it being replaced anytime soon, at least before the winter.  

A thermometer is a basic instrument, originally measured by the response of mercury or alcohol in a tube, and can be calibrated quite accurately. The National Weather Service has a more complex one, via an instrument called Automated Surface Observing System.

It is well aspirated to prevent any “solar spikes” that many homemade thermometers might have if they are not located in a north position facing away from any sun. The instrument is required to be at least five feet off the ground to avoid any excessive surface heating that can happen near asphalt and other heat-absorbing materials.

The thermometer sensor is part of a complex computerized system that also records wind speed, barometric pressure, and precipitation, which is issued automatically with initially no human intervention. A weather observer or traffic controller is required to be on duty at the airport to quality control the data that is disseminated. 

One would think the National Weather Service, being the steward of accurate weather detail, would seek to have an accurate thermometer. We all have heard that a global average warming of just 1.5C (about 2.5F) could wreak havoc on our planet. So, if the thermometer at the Albany International Airport is measuring 2.5 degrees too low, as I believe it is, this cool bias reading might mask any significant warming.

However, according to the National Weather Service from the Silver Spring headquarters, the number-one client the Automated Surface Observing System thermometer is tailored for, would be the aviation community. The National Weather Service claims it relies on many volunteers for climate data for climate information, collectively called the Cooperative Observer Program or COOP.

Assuming that is the case, an accurate thermometer is just as critical to the aviation industry. If the actual temperature is 34 F, but the Automated Surface Observing System thermometer records a temperature of 32 F, the pilot might have to be concerned about freezing rain versus liquid rain, which makes a huge operational impact. 

Also, the National Weather Service, both locally and at the higher end, realize there is a two- to three-degree cool bias, but argue the sensor itself is not to blame. 

My question to them: Then what is it? So far, there has been no answer.  

How do we know the thermometer has such a cool bias? You might have seen our local TV meteorologists use the Pine Bush temperature readings instead of the airport for a more representative temperature.

I personally have a Davis thermometer myself, and have been keeping track of high and low temperatures for years. I live in the southwestern portion of Albany, away from the city heat island. I am on top of a small hill so my overnight lows usually ran about a degree or so warmer than the airport.

However, my high temperatures were usually within a degree of the airport’s temperature until July 18, 2020, the day the thermometer was changed at the airport. From that point on, with a few noted exceptions, my thermometer has been consistently running 2 to 3 degrees warmer than the airport, the same thermometer I have had for years. My thermometer’s readings are much closer to the Pine Bush’s for high temperatures, and to many of my friends’ thermometers. 

If you look at monthly temperatures at Pittsfield and Glens Falls, in the past months, they have been very close to the airport. In the past, both places would usually run a mean temperature (combined high and low temperature) closer to 3 degrees lower than the Albany International Airport). 

Perhaps the worst part of all this, is that our monthly records with this known cool bias, keep going out to the world and would suggest our climate is locally cooling, when really it is not. 

The folks at the local National Weather Service in Albany are not to blame. They have done all they can to inform the higher officials of the problem. I suggest you call your local Congress member and hopefully they can put pressure on the higher officials of National Weather Service to change the thermometer before further damage can be done to the climate records and have a reliable accurate temperature sensor.

Hugh Johnson

Albany

Editor’s note: Hugh Johnson, now retired, used to work for the National Weather Service.

Joe Villani, a meteorologist at the Albany office of the National Weather Service, confirmed for The Enterprise that the thermometer at the Albany International Airport is several degrees off.

“We’re definitely aware of it ….,” he said. “People at National Weather Service headquarters are looking into resolving it.”

Villani said it can take time to diagnose problems with equipment invented in the 1990s. It was noted in July 2020, that the thermometer was running too cool, he said, so it was replaced last October but continues to run too cool.

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
752 AM EDT THU SEP 30 2021

...PUBLIC INFORMATION STATEMENT...

...NATIONAL WEATHER SERVICE REPLACEMENT OF THERMOMETER AT
ALBANY INTERNATIONAL AIRPORT...

THE NATIONAL WEATHER SERVICE RECONDITIONING CENTER (NWSRC) REPLACED
THE AUTOMATED SURFACE OBSERVING SYSTEM THERMOMETER AND ASSOCIATED
ELECTRONICS AT THE ALBANY INTERNATIONAL AIRPORT YESTERDAY, 
SEPTEMBER 29, 2021 AT 9:30 AM. THE THERMOMETER WAS REPLACED WITH A
MODIFIED SENSOR AND CALIBRATED WITH A MODIFIED ALIGNMENT 
PROCEDURE.

A REFERENCE THERMOMETER, RUNNING SIDE BY SIDE WITH THE ASOS THERMOMETER,
HAS COLLECTED DATA FOR COMPARISON SINCE JUNE. THE PREVIOUS 
THERMOMETERS INSTALLED SINCE JULY 17, 2020 LIKELY HAD A COLD BIAS 
(THERMOMETER RECORDS A COLDER TEMPERATURE THAN THE ACTUAL 
TEMPERATURE).

THE NATIONAL WEATHER SERVICE WILL CONTINUE THE INVESTIGATION ON THE
COLD BIAS IN THE ALBANY TEMPERATURE RECORD FOR THE PERIOD JULY 
17, 2020 THROUGH SEPTEMBER 29, 2021. 

PLEASE CONTACT SUSAN BUCHANAN, DIRECTOR OF PUBLIC AFFAIRS, NATIONAL
WEATHER SERVICE AT 301-427-9000 FOR ADDITIONAL INFORMATION.

$$

SND/MEM

000
NOUS41 KALY 301152
PNSALY
MAZ001-025-NYZ039>041-047>054-058>061-082-084-021200-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
752 AM EDT THU SEP 30 2021

...PUBLIC INFORMATION STATEMENT...

...NATIONAL WEATHER SERVICE REPLACEMENT OF THERMOMETER AT
ALBANY INTERNATIONAL AIRPORT...

THE NATIONAL WEATHER SERVICE RECONDITIONING CENTER (NWSRC) REPLACED
THE AUTOMATED SURFACE OBSERVING SYSTEM THERMOMETER AND ASSOCIATED
ELECTRONICS AT THE ALBANY INTERNATIONAL AIRPORT YESTERDAY, 
SEPTEMBER 29, 2021 AT 9:30 AM. THE THERMOMETER WAS REPLACED WITH A
MODIFIED SENSOR AND CALIBRATED WITH A MODIFIED ALIGNMENT 
PROCEDURE.

A REFERENCE THERMOMETER, RUNNING SIDE BY SIDE WITH THE ASOS THERMOMETER,
HAS COLLECTED DATA FOR COMPARISON SINCE JUNE. THE PREVIOUS 
THERMOMETERS INSTALLED SINCE JULY 17, 2020 LIKELY HAD A COLD BIAS 
(THERMOMETER RECORDS A COLDER TEMPERATURE THAN THE ACTUAL 
TEMPERATURE).

THE NATIONAL WEATHER SERVICE WILL CONTINUE THE INVESTIGATION ON THE
COLD BIAS IN THE ALBANY TEMPERATURE RECORD FOR THE PERIOD JULY 
17, 2020 THROUGH SEPTEMBER 29, 2021. 

PLEASE CONTACT SUSAN BUCHANAN, DIRECTOR OF PUBLIC AFFAIRS, NATIONAL
WEATHER SERVICE AT 301-427-9000 FOR ADDITIONAL INFORMATION.

$$

SND/MEM