September 2020 wx discussion

[Rtd208]

Some of the heaviest rain I have seen in a while.

Picked up 1.49" of rain so far today with most of it coming in the 45 mins to and hour.

[psv88]

2 hours ago, TriPol said:

Are we done with the 90s?

Yes. 
 

89 here today

[Rtd208]

Picked up 1.49" of rain for the day here.

[CIK62]

The next 8 days are averaging 79.5degs., or 8.5degs. AN.       Make it 3.5degs.

The tropical threats are seemingly nil for the next 15 days with multiple Fish or Fishy systems.     The strongest development never makes it past 45^ W att.       It starts in a nice spot like 12^N---but is westwardly challenged anyway.      Earliest meaningful EC hit now say Sept. 25?

71*(95%RH) here at 6am, m. clear.          79*(72%RH) by Noon.       86*(45%RH) by 4pm.

[donsutherland1]

Morning thoughts...

Today will be mainly sunny and quite warm. Temperatures will likely reach the middle and upper 80s across the region. Likely high temperatures around the region include:

New York City (Central Park): 85°
Newark: 87°
Philadelphia: 86°

Cooler air will return for the weekend as a deep trough will move from Canada toward the Great Lakes Region and into the Northern Plains.

Another round of dangerous heat will develop in the Southwest today. Parts of Arizona, California, Colorado, and Nevada could see several days of near record to record high temperatures. Following the heat, parts of Colorado and Wyoming, including Denver, could see their first snowfall of the season next week.

 

[bluewave]

I wonder if this will be the first time that a part of the US experiences snow so soon after highs near 100°?

 

RECORD HEAT THIS WEEKEND TO POSSIBLE SNOW TUESDAY...

Upper level ridge centered over the Great Basin will retrograde
westward Sunday over California and Nevada. By Monday, what`s left
of the ridge is just off the California coast. This ridge will
keep it hot and dry Saturday and Sunday. Highs across northeast
Colorado are expected to reach the mid 90s to lower 100s. A low
pressure trough across eastern Colorado and a short wave trough
passing to the north of Colorado will cause west to northwest
winds to increase Sunday. This downslope flow will produce very
dry conditions. It will likely offset any minor cooling associated
with the short wave trough.

A weak cold front drops south across the area Sunday night. Gusty
east winds behind it are expected for Monday. This will usher in
cooler air into northeast Colorado.

For Monday, models still showing a strong open trough over the
Northern Rockies. This trough then dives south and strengthens
into a closed low over somewhere near the Four Corner Tuesday. A
strong cold front associated with this system pushes south through
the state late Monday afternoon through Monday night.
Precipitation develops Monday evening and becomes widespread
overnight Monday night and Tuesday.

The 00Z GFS, GEM, and ECMWF are quite impressive with the amount
of cold that accompanies this storm system. If the current
solutions are right or close, it will be cold enough for snow to
fall along the Front Range Urban Corridor and nearby plains.
Accumulating snow on trees may cause considerable tree damage and
related impacts will be possible. This system is four days away
and models will likely change some. Confidence is becoming high
that snow will occur in the mountains and foothills Monday night
through Tuesday evening. A slight change in storm track or a
slightly weaker closed low may keep the lower elevations warm
enough for rain. Main message is cold and heavy snow is possible
Monday night through Tuesday night. Monitor the latest forecasts
and consider changing outdoor or travel plans if cold and snow
still look on track.

[rclab]

2 hours ago, bluewave said:

I wonder if this will be the first time that a part of the US experiences snow so soon after highs near 100°?

 

RECORD HEAT THIS WEEKEND TO POSSIBLE SNOW TUESDAY...

Upper level ridge centered over the Great Basin will retrograde
westward Sunday over California and Nevada. By Monday, what`s left
of the ridge is just off the California coast. This ridge will
keep it hot and dry Saturday and Sunday. Highs across northeast
Colorado are expected to reach the mid 90s to lower 100s. A low
pressure trough across eastern Colorado and a short wave trough
passing to the north of Colorado will cause west to northwest
winds to increase Sunday. This downslope flow will produce very
dry conditions. It will likely offset any minor cooling associated
with the short wave trough.

A weak cold front drops south across the area Sunday night. Gusty
east winds behind it are expected for Monday. This will usher in
cooler air into northeast Colorado.

For Monday, models still showing a strong open trough over the
Northern Rockies. This trough then dives south and strengthens
into a closed low over somewhere near the Four Corner Tuesday. A
strong cold front associated with this system pushes south through
the state late Monday afternoon through Monday night.
Precipitation develops Monday evening and becomes widespread
overnight Monday night and Tuesday.

The 00Z GFS, GEM, and ECMWF are quite impressive with the amount
of cold that accompanies this storm system. If the current
solutions are right or close, it will be cold enough for snow to
fall along the Front Range Urban Corridor and nearby plains.
Accumulating snow on trees may cause considerable tree damage and
related impacts will be possible. This system is four days away
and models will likely change some. Confidence is becoming high
that snow will occur in the mountains and foothills Monday night
through Tuesday evening. A slight change in storm track or a
slightly weaker closed low may keep the lower elevations warm
enough for rain. Main message is cold and heavy snow is possible
Monday night through Tuesday night. Monitor the latest forecasts
and consider changing outdoor or travel plans if cold and snow
still look on track.

BW those four words, “the first time that” seem to be used with increasing regularity in relation to our atmosphere. Stability seems to be on the wane and those four word may end up being best defined as famous last .... As always ....

[donsutherland1]

45 minutes ago, bluewave said:

I wonder if this will be the first time that a part of the US experiences snow so soon after highs near 100°?

 

RECORD HEAT THIS WEEKEND TO POSSIBLE SNOW TUESDAY...

Upper level ridge centered over the Great Basin will retrograde
westward Sunday over California and Nevada. By Monday, what`s left
of the ridge is just off the California coast. This ridge will
keep it hot and dry Saturday and Sunday. Highs across northeast
Colorado are expected to reach the mid 90s to lower 100s. A low
pressure trough across eastern Colorado and a short wave trough
passing to the north of Colorado will cause west to northwest
winds to increase Sunday. This downslope flow will produce very
dry conditions. It will likely offset any minor cooling associated
with the short wave trough.

A weak cold front drops south across the area Sunday night. Gusty
east winds behind it are expected for Monday. This will usher in
cooler air into northeast Colorado.

For Monday, models still showing a strong open trough over the
Northern Rockies. This trough then dives south and strengthens
into a closed low over somewhere near the Four Corner Tuesday. A
strong cold front associated with this system pushes south through
the state late Monday afternoon through Monday night.
Precipitation develops Monday evening and becomes widespread
overnight Monday night and Tuesday.

The 00Z GFS, GEM, and ECMWF are quite impressive with the amount
of cold that accompanies this storm system. If the current
solutions are right or close, it will be cold enough for snow to
fall along the Front Range Urban Corridor and nearby plains.
Accumulating snow on trees may cause considerable tree damage and
related impacts will be possible. This system is four days away
and models will likely change some. Confidence is becoming high
that snow will occur in the mountains and foothills Monday night
through Tuesday evening. A slight change in storm track or a
slightly weaker closed low may keep the lower elevations warm
enough for rain. Main message is cold and heavy snow is possible
Monday night through Tuesday night. Monitor the latest forecasts
and consider changing outdoor or travel plans if cold and snow
still look on track.

Some numbers for Denver:

27 cases where measurable snow fell a day after the temperature hit 80 degrees or above.

Highest temperature preceding a measurable snow event: 92 degrees, September 12, 1993 (5.4" snow fell on September 13)

Most recent case: October 9, 2019: 83 degrees (1.0" fell on October 10)

 

[SACRUS]

 

78 now after 1.04 in the bucket from he storms last evening between 8:30 and 10PM.  Clouds got in the way of any 90s yesterday (89 at both EWR/LGA and other areas).  Today 850s look to be cooling but with enough sunshine outside chance.  This  Labor Day weekend looking beautiful upper 70s low 80s drier with loads of sun!   

 

Mon 9/7 - Fri  9/11 West Coast roaster, mid section coold/wet and east coast warm and humid by way of Western Atlantic ridge powerhouse.  Should see highs in the low 80s and should we swing to a more SW flow Thu perhaps an outside chance of 90s, other wise warm and humid and above normal overall. 

 

By next weekend 9/12 some cooler air is pushing into the area as trough swings through the northeast with likely a 2 day cooldown before warmer weather returns towards mid month.  Way beyond looks warm / humid into the area  with east coast elevated heights with continued trough into the MW/GL and ridging rebuilding out west .

[bluewave]

30 minutes ago, rclab said:

BW those four words, “the first time that” seem to be used with increasing regularity in relation to our atmosphere. Stability seems to be on the wane and those four word may end up being best defines as famous last .... As always ....

Yeah, the number of new weather extremes since around 2010 has almost become too numerous to keep track of.

12 minutes ago, donsutherland1 said:

Some numbers for Denver:

27 cases where measurable snow fell a day after the temperature hit 80 degrees or above.

Highest temperature preceding a measurable snow event: 92 degrees, September 12, 1993 (5.4" snow fell on September 13)

Most recent case: October 9, 2019: 83 degrees (1.0" fell on October 10)

 

Don, thanks for those stats. I guess our version of that near sea level would be February 8th- 9th, 2017.

ISP

2017-02-08	62	39	50.5	18.8	14	0	T	0.0	0
2017-02-09	42	18	30.0	-1.8	35	0	1.30	14.3	1

 

[Brian5671]

5 minutes ago, bluewave said:

Yeah, the number of new weather extremes since around 2010 has almost become too numerous to keep track of.

Don, thanks for those stats. I guess our version of that near sea level would be February 8th- 9th, 2017.

ISP

2017-02-08	62	39	50.5	18.8	14	0	T	0.0	0
2017-02-09	42	18	30.0	-1.8	35	0	1.30	14.3	1

 

Remember that one well-felt like spring and then a foot of slop....even more remarkable there was not a drop of rain here it was snow from first flake to last

[wdrag]

Next week continues of interest, as it appears the ensembles are slowing the central USA trough and building a strong ridge along the e coast...with lots of southerly component. 00z/4 NAEFS reflects... showers develop Monday night or Tuesday (inverted trough early-mid week) and continue intermittently through Monday the 14th.  Presuming some days will be rain free... Haver added a week long graphic that now has an ensemble 40-50% probability of 2" Long Island. It's also becoming a little clearer, that one axis of heavy precip will be west of the Apps,  and another along the USA east coast with a relatively low qpf expectation between.  

Finally-Sunday the 6th...still to me looks like isolated or sct showers about the NYC forum area per KI pooling in weak WAA?  1023A/4

[bluewave]

1 hour ago, SACRUS said:

Mon 9/7 - Fri  9/11 West Coast roaster, mid section coold/wet and east coast warm and humid by way of Western Atlantic ridge powerhouse.  Should see highs in the low 80s and should we swing to a more SW flow Thu perhaps an outside chance of 90s, other wise warm and humid and above normal overall. 

Looks like we will experience near record 500 mb heights for September. But the high will be to our NE with onshore flow.

 

[gravitylover]

1 hour ago, bluewave said:

I wonder if this will be the first time that a part of the US experiences snow so soon after highs near 100°?

 

RECORD HEAT THIS WEEKEND TO POSSIBLE SNOW TUESDAY...

I was in Denver one day in August 1997 and it was 109* near downtown. A little over an hour later and about 60 miles away it was 26* and snowing heavily as a cold front was dropping into the area. I left the city wearing shorts, no shirt and barefoot with the sunroof out of the car. As I drove along I had to close the windows and turn the heat on, then it was time to put on some shoes but all I had with me was sandals. When the snow turned from spits and fits to heavy snow I stopped next to an overhanging rock to put the roof back in and grab a jacket out of the trunk and there was 3" of snow on the ground. Another 15 miles west and it was 85* again and I was way overdressed. I love that place 

[Brian5671]

2 minutes ago, gravitylover said:

I was in Denver one day in August 1997 and it was 109* near downtown. A little over an hour later and about 60 miles away it was 26* and snowing heavily as a cold front was dropping into the area. I left the city wearing shorts, no shirt and barefoot with the sunroof out of the car. As I drove along I had to close the windows and turn the heat on, then it was time to put on some shoes but all I had with me was sandals. When the snow turned from spits and fits to heavy snow I stopped next to an overhanging rock to put the roof back in and grab a jacket out of the trunk and there was 3" of snow on the ground. Another 15 miles west and it was 85* again and I was way overdressed. I love that place 

crazy stuff out there.  I ski out there every January and the weather changes in a heartbeat-from sunny to blizzard in minutes

[gravitylover]

2 minutes ago, Brian5671 said:

crazy stuff out there.  I ski out there every January and the weather changes in a heartbeat-from sunny to blizzard in minutes

Massive vertical relief does it every time. From Denver up to the tunnel is nearly 7k feet and the ridges are another ~2k up from there. It's even more dramatic in California, try from Death Valley up to the ridge along Mt Whitney where it's over 14k or from Weed (on I5) looking up to the top of Shasta where it's over 12k. I think the best I've seen is from the water to the top of Mt St Elias in AK where you're looking up over 19k but it's over a much longer distance.

[IrishRob17]

46 minutes ago, gravitylover said:

I was in Denver one day in August 1997 and it was 109* near downtown. A little over an hour later and about 60 miles away it was 26* and snowing heavily as a cold front was dropping into the area. I left the city wearing shorts, no shirt and barefoot with the sunroof out of the car. As I drove along I had to close the windows and turn the heat on, then it was time to put on some shoes but all I had with me was sandals. When the snow turned from spits and fits to heavy snow I stopped next to an overhanging rock to put the roof back in and grab a jacket out of the trunk and there was 3" of snow on the ground. Another 15 miles west and it was 85* again and I was way overdressed. I love that place 

Pics or it didn’t happen 

[CIK62]

1 hour ago, bluewave said:

Looks like we will experience near record 500 mb heights for September. But the high will be to our NE with onshore flow.

 

But even the "I Forgot to Take My Meds Today---GFS" is only showing near 90 around this time and goes BN by Sept.17-----which I suspect may be lower than indicated, with its + Bias.

[stemwinder]

13 hours ago, Rtd208 said:

Picked up 1.49" of rain for the day here.

My little rain gauge, carefully placed, measured over 2" when I emptied it today.  

That was a nice little storm (Thursday, around 9PM).  Sorry this is late in posting.

[gravitylover]

2 hours ago, IrishRob17 said:

Pics or it didn’t happen 

Oops, I just realized that's 10 years off, it was 1987. Sloppy thumb typing

[IrishRob17]

2 hours ago, gravitylover said:

Oops, I just realized that's 10 years off, it was 1987. Sloppy thumb typing

Are you saying there weren’t cameras back in ‘87?  What a gem of a day today is!

[rclab]

2 hours ago, IrishRob17 said:

Are you saying there weren’t cameras back in ‘87?  What a gem of a day today is!

I believe that was during the VCR/camcorder golden age. As always .....

[bluewave]

9 hours ago, donsutherland1 said:

Some numbers for Denver:

27 cases where measurable snow fell a day after the temperature hit 80 degrees or above.

Highest temperature preceding a measurable snow event: 92 degrees, September 12, 1993 (5.4" snow fell on September 13)

Most recent case: October 9, 2019: 83 degrees (1.0" fell on October 10)

 

According to Brian B, the US record for earliest measurable  snowfall after a 100° was 5 days at Rapid City, SD in September 2000. So Denver could potentially see their latest 100° and then one of their earliest measurable snowfalls.

 

2000-09-17	101	53	77.0	16.8	0	12	T	0.0	0
2000-09-18	93	64	78.5	18.8	0	14	T	0.0	0
2000-09-19	65	48	56.5	-2.7	8	0	0.04	0.0	0
2000-09-20	61	43	52.0	-6.7	13	0	0.00	0.0	0
2000-09-21	66	41	53.5	-4.8	11	0	0.00	0.0	0
2000-09-22	46	34	40.0	-17.8	25	0	0.27	0.5	0

 

First/Last Summary for Denver Area, CO (ThreadEx)
Each section contains date and year of occurrence, value on that date.
Click column heading to sort ascending, click again to sort descending.

Year	First	Value	Last	Value	Difference
2019	07-19 (2019)	101	09-02 (2019)	100	44
2002	08-16 (2002)	100	08-16 (2002)	100	0
1962	08-10 (1962)	100	08-14 (1962)	100	3
1876	07-06 (1876)	101	08-12 (1876)	100	36
1969	08-08 (1969)	100	08-08 (1969)	100	0

 

First/Last Summary for Denver Area, CO (ThreadEx)
Each section contains date and year of occurrence, value on that date.
Click column heading to sort ascending, click again to sort descending.

Year	Last	Value	First	Value	Difference
1961	05-13 (1961)	6.4	09-03 (1961)	4.2	112
1962	04-30 (1962)	0.1	09-08 (1962)	0.7	130
1974	04-29 (1974)	0.2	09-12 (1974)	1.8	135
1989	04-30 (1989)	3.7	09-12 (1989)	2.3	134
1993	04-24 (1993)	1.0	09-13 (1993)	5.4	141
1971	04-22 (1971)	4.5	09-16 (1971)	2.7	146

[donsutherland1]

Cooler air will return starting tomorrow as a deep trough moves from Canada toward the Great Lakes Region and into the Northern Plains. The coldest air associated with this trough will likely remain mainly west of the Appalachians. That trough may persist until near or just after mid-month. Nevertheless, the first half of September will likely wind up somewhat warmer than normal.

Another bout of extreme heat commenced in the Southwest in spectacular fashion in which two monthly records were toppled. Select high temperatures included:

Blythe, CA: 115° (tied record set in 1948)
Death Valley: 122° (old record: 121°, 2007)
Denver: 91°
Flagstaff: 90° (tied record set in 1945)
Kingman, AZ: 107° (old record: 104°, 2019)
Lake Havasu City: 115° (old record: 114°, 1993, 1995 and 2007)
Las Vegas: 109°
Needles, CA: 117° (old record: 116°, 2019)
Palm Springs, CA: 116° (tied record set in 1955)
Phoenix: 114° (old record: 112°, 1945 and 2019)
Reno: 102° (old record: 100°, 1988 and 2017) ***New September Record***
Tucson: 110° (old record: 106°, 1945 and 2011) ***New September Record***
Yuma, AZ: 114°

Until today, Tucson's latest season 110° or above temperature occurred on August 22, 1930 when the temperature also topped out at 110°.

September 2020 became the 4th consecutive September during which the temperature reached 120° or above. Prior to the current stretch, the record was two consecutive years. The temperature was also the hottest September temperature since September 2, 2017 when the mercury also reached 122°. Only September 2, 1996 with a high temperature of 123° was hotter in September. That record could be challenged tomorrow and Sunday.

The ENSO Region 1+2 anomaly was -0.6°C and the Region 3.4 anomaly was -0.7°C for the week centered around August 26. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -1.02°C and the ENSO Region 3.4 anomaly has averaged -0.63°C. Neutral-cool conditions will likely evolve into La Niña conditions during the fall.

The SOI was +6.78.

Today, the preliminary Arctic Oscillation (AO) figure was -0.198.

On September 3, the MJO was in Phase 3 at an amplitude of 1.018 (RMM). The September 2-adjusted amplitude was 1.063.

Since 1990, there have been 11 La Niña events, 6 of which followed an El Niño winter. 10/11 (91%) case saw warmer than normal September. All 6 following an El Niño winter were warmer than normal. September mean temperatures for New York City for those cases were: 11 cases: 69.9°; Subset of 6 cases: 70.8°; Entire 1990-2019 period: 69.0°. The September mean temperature for all La Niña and neutral-cool cases following an El Niño winter (1950-2019: n=13) was 69.9°. Overall, the evolution of ENSO, along with the observed ongoing monthly warming (1.6°/decade in NYC and 1.5°/decade in the Northeast Region during September 1990-2019), favors a warmer than normal September.

Since 1950, there have been five cases where a La Niña developed during June-July-August or afterward following an El Niño winter. 4/5 (80%) of those cases saw a predominant EPO+/AO+ winter pattern. The most recent such case was 2016-17. 9/10 (90%) of the La Niña winters that followed an El Niño winter featured a predominantly positive EPO.   

Finally, on September 3, Arctic sea ice extent data was not available. On September 2, Arctic sea ice extent was 3.861 million square kilometers (JAXA). Based on the August 31 figure, minimum Arctic sea ice extent will most likely finish somewhere from 3.645 million to 3.695 million square kilometers in September. The highest 25% bound is 3.742 million square kilometers. The lowest 25% bound is 3.581 million square kilometers. 2020 is the second consecutive year with a minimum extent figure below 4.000 million square kilometers and the third such year on record.

 

[LibertyBell]

On 8/30/2020 at 8:43 PM, LibertyBell said:

do you also see very limited east coast TC landfall potential?  at the very least, it's not as favorable as it was earlier in the summer....it looks to me to be a pattern where systems will pass to our south and hit Fla or enter the Gulf or recurve out to sea.  Perhaps later in September (after the 20th) and into October will enter another hazardous period.

 

looks like I was right

[LibertyBell]

48 minutes ago, donsutherland1 said:

Cooler air will return starting tomorrow as a deep trough moves from Canada toward the Great Lakes Region and into the Northern Plains. The coldest air associated with this trough will likely remain mainly west of the Appalachians. That trough may persist until near or just after mid-month. Nevertheless, the first half of September will likely wind up somewhat warmer than normal.

Another bout of extreme heat commenced in the Southwest in spectacular fashion in which two monthly records were toppled. Select high temperatures included:

Blythe, CA: 115° (tied record set in 1948)
Death Valley: 122° (old record: 121°, 2007)
Denver: 91°
Flagstaff: 90° (tied record set in 1945)
Kingman, AZ: 107° (old record: 104°, 2019)
Lake Havasu City: 115° (old record: 114°, 1993, 1995 and 2007)
Las Vegas: 109°
Needles, CA: 117° (old record: 116°, 2019)
Palm Springs, CA: 116° (tied record set in 1955)
Phoenix: 114° (old record: 112°, 1945 and 2019)
Reno: 102° (old record: 100°, 1988 and 2017) ***New September Record***
Tucson: 110° (old record: 106°, 1945 and 2011) ***New September Record***
Yuma, AZ: 114°

Until today, Tucson's latest season 110° or above temperature occurred on August 22, 1930 when the temperature also topped out at 110°.

September 2020 became the 4th consecutive September during which the temperature reached 120° or above. Prior to the current stretch, the record was two consecutive years. The temperature was also the hottest September temperature since September 2, 2017 when the mercury also reached 122°. Only September 2, 1996 with a high temperature of 123° was hotter in September. That record could be challenged tomorrow and Sunday.

The ENSO Region 1+2 anomaly was -0.6°C and the Region 3.4 anomaly was -0.7°C for the week centered around August 26. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -1.02°C and the ENSO Region 3.4 anomaly has averaged -0.63°C. Neutral-cool conditions will likely evolve into La Niña conditions during the fall.

The SOI was +6.78.

Today, the preliminary Arctic Oscillation (AO) figure was -0.198.

On September 3, the MJO was in Phase 3 at an amplitude of 1.018 (RMM). The September 2-adjusted amplitude was 1.063.

Since 1990, there have been 11 La Niña events, 6 of which followed an El Niño winter. 10/11 (91%) case saw warmer than normal September. All 6 following an El Niño winter were warmer than normal. September mean temperatures for New York City for those cases were: 11 cases: 69.9°; Subset of 6 cases: 70.8°; Entire 1990-2019 period: 69.0°. The September mean temperature for all La Niña and neutral-cool cases following an El Niño winter (1950-2019: n=13) was 69.9°. Overall, the evolution of ENSO, along with the observed ongoing monthly warming (1.6°/decade in NYC and 1.5°/decade in the Northeast Region during September 1990-2019), favors a warmer than normal September.

Since 1950, there have been five cases where a La Niña developed during June-July-August or afterward following an El Niño winter. 4/5 (80%) of those cases saw a predominant EPO+/AO+ winter pattern. The most recent such case was 2016-17. 9/10 (90%) of the La Niña winters that followed an El Niño winter featured a predominantly positive EPO.   

Finally, on September 3, Arctic sea ice extent data was not available. On September 2, Arctic sea ice extent was 3.861 million square kilometers (JAXA). Based on the August 31 figure, minimum Arctic sea ice extent will most likely finish somewhere from 3.645 million to 3.695 million square kilometers in September. The highest 25% bound is 3.742 million square kilometers. The lowest 25% bound is 3.581 million square kilometers. 2020 is the second consecutive year with a minimum extent figure below 4.000 million square kilometers and the third such year on record.

 

Don, astonishing that LA could hit 105 and Denver may hit 100 over the weekend, and then Denver might get a nice snowstorm next week!  When was the latest that Needles hit 120?  That may happen too.

 

[LibertyBell]

7 hours ago, bluewave said:

The high dew points by later next week may turn out to be the bigger story. The SE to S flow around that near record ridge will transport in plenty of tropical moisture.  So there could be some impressive downpours where the weak boundaries set up.

 

Looks like the tropical downpours will extend back to NE PA going by that map!  Not a named system but tropical rains a la October 2005?

 

[donsutherland1]

1 hour ago, LibertyBell said:

Don, astonishing that LA could hit 105 and Denver may hit 100 over the weekend, and then Denver might get a nice snowstorm next week!  When was the latest that Needles hit 120?  That may happen too.

 

The latest Needles hit 120 was September 1, 1950.

[SACRUS]

 

9/4

ACY: 89
BLM: 89
EWR: 88
JFK: 88
PHL: 88
ISP: 87
LGA: 87
TTN: 86
New Brnswck: 86
TEB: 85
NYC: 85
 

[gravitylover]

7 hours ago, IrishRob17 said:

Are you saying there weren’t cameras back in ‘87?  What a gem of a day today is!

Heh. I was just thinking the other day that some people have their lives documented in photos after a couple of posts on Fb and I realized I went years where nobody took my picture unless I was visiting my parents. I had a nice camera for a while and mostly took scenics, the few pics I took when I was doing things were in the bag when the thing melted in a house fire. There's a 13 year period that I have almost no pictures of. 

Yup, nearly perfect day. Looks like we have a few more coming up.