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August 2015 Discussion


Hoosier

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Interesting observation by Evan Bentley at IWX concerning next week:

 

BOTH THE GFS AND ECMWF STRENGTHEN THE FLOW ACROSS THE CENTRAL UNITED

STATES BY THE MIDDLE OF NEXT WEEK. HAVE MODERATE TO HIGH CONFIDENCE

OF THIS OCCURRING GIVEN THE TENDENCY FOR STRENGTHENING...AMPLIFIED

FLOW ACROSS THE CONUS 10-14 DAYS AFTER WESTERN PACIFIC TYPHOONS

(SOUDELOR) ARE INGESTED INTO MID-LATITUDE FLOW. IT IS TOO FAR OUT TO

KNOW HOW THIS MAY IMPACT OUR LOCAL WEATHER...BUT WILL KEEP AN EYE ON

HOW THIS EVOLVES.

 

In other words, more of the same (seasonable/cool but "active")...

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Today was the 27th consecutive 80+ day at ORD, making it tied for the 8th longest stretch on record. 80's are a lock through early next week, so should make it into the top 5.

 

Consecutive 80+ Days:
1. 46 - 7/2-8/16/2010
2. 44 - 6/26-8/8/2012
3. 42 - 6/27-8/7/1955
4. 34 - 8/4-9/6/1995
5. 32 - 7/8-8/8/1983
6. 30 - 6/20-7/19/1921
7. 29 - 7/21-8/18/1988
8. 27 - 7/17-???
8. 27 - 7/14-8/9/2011
8. 27 - 7/11-8/6/1999
8. 27 - 6/18-7/14/1966

 

 

 

near shore beach waters were florida-esque in 2010 and 2012

 

 

it's pretty wild/impressive to be sniffing top 5 again considering how cool the pattern has felt for the past couple years.

 

either way, 2010, 2011, 2012, and 2015 all in the top 8...climate change FTW

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Today was the 27th consecutive 80+ day at ORD, making it tied for the 8th longest stretch on record. 80's are a lock through early next week, so should make it into the top 5.

 

Consecutive 80+ Days:
1. 46 - 7/2-8/16/2010
2. 44 - 6/26-8/8/2012
3. 42 - 6/27-8/7/1955
4. 34 - 8/4-9/6/1995
5. 32 - 7/8-8/8/1983
6. 30 - 6/20-7/19/1921
7. 29 - 7/21-8/18/1988
8. 27 - 7/17-???
8. 27 - 7/14-8/9/2011
8. 27 - 7/11-8/6/1999
8. 27 - 6/18-7/14/1966

 

 

Wow. I have only hit 80 (3 out of 12 days) this month. Is this consistent with rural areas or does the UHI taint this station pretty good? Peaked at 74F today.

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near shore beach waters were florida-esque in 2010 and 2012

 

 

it's pretty wild/impressive to be sniffing top 5 again considering how cool the pattern has felt for the past couple years.

 

either way, 2010, 2011, 2012, and 2015 all in the top 8...climate change FTW

 

I'm sure this plays a part, but.... the same weather in ORD from 1880 - 1950 +/-, would probably have ended this streak a while back. All those 80-81 degree days would have been upper 70's.

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Wow. I have only hit 80 (3 out of 12 days) this month. Is this consistent with rural areas or does the UHI taint this station pretty good? Peaked at 74F today.

It's pretty consistent. I'm about 15 miles west of ORD in the more suburban area away from the immediate UHI, and have the same streak going. In addition to that, I have more 90+ days on the season as well... 7 here, 5 at ORD and 10 at MDW.
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Today was the 27th consecutive 80+ day at ORD, making it tied for the 8th longest stretch on record. 80's are a lock through early next week, so should make it into the top 5.

 

Consecutive 80+ Days:
1. 46 - 7/2-8/16/2010
2. 44 - 6/26-8/8/2012
3. 42 - 6/27-8/7/1955
4. 34 - 8/4-9/6/1995
5. 32 - 7/8-8/8/1983
6. 30 - 6/20-7/19/1921
7. 29 - 7/21-8/18/1988
8. 27 - 7/17-???
8. 27 - 7/14-8/9/2011
8. 27 - 7/11-8/6/1999
8. 27 - 6/18-7/14/1966

 

 

Hasn't been overwhelmingly hot this summer, but it's definitely consistently warm which is nice.

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I just realized... the GFS on weather.cod.edu now has a mid-level lapse rate parameter. I remember someone in this subforum goes to COD and I mentioned it would be sweet to have that parameter to track the EML... so thanks to whoever it was... so glad they did it. It's so interesting/educational to watch the EML plume try to advect from the desert

 

rW9MHd4.gif

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I just realized... the GFS on weather.cod.edu now has a mid-level lapse rate parameter. I remember someone in this subforum goes to COD and I mentioned it would be sweet to have that parameter to track the EML... so thanks to whoever it was... so glad they did it. It's so interesting/educational to watch the EML plume try to advect from the desert

 

rW9MHd4.gif

 

Now all they need to add are the 10 meter wind speeds similar to the other heights and I'll be happy.  LRs were a great addition.

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I was surprised to hear about the streak at ord as well. Interesting that a summer with well below normal 90s and below normal temps Overall will contain such a streak. Ord was -1.6F in July and +0.6F in Aug yet they have that streak going. Very steady, unchanging pattern in place.

No such streak at DTW, several August days in the 70s.

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I'm sure this plays a part, but.... the same weather in ORD from 1880 - 1950 +/-, would probably have ended this streak a while back. All those 80-81 degree days would have been upper 70's.

Chicagos official weather station has only been at ORD for a short time. The early 20th century and late 19th century were actually at a location on the water if I remember correctly.

2010-12 were a trio of broiling summers we all remember, so it's no surprise to see them on the list. Locally at Detroit, while the hot days were piling up in those 3 years, the number of hot days has been well below normal in 2008-09, 2013-15. The 2000s saw the LEAST 90F+ days in 100 years. It will be interesting to see how the 2010s end up because they started on a record pace 3 years in which has screeched to a halt the last 3 years. It will be all about 2016-19 to see where this decade ends up wrt summer heat.

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LOT slashing temps again

another possible hottest day of the summer ending up in the low 80s

It'll get warmer than low 80s, already 81 at ORD and 80 at MDW, but yeah definitely a bit lower than expected again. The extreme warm bias on the RAP/HRRR is pretty entertaining today and also why they're breaking out fairly widespread convection.

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It'll get warmer than low 80s, already 81 at ORD and 80 at MDW, but yeah definitely a bit lower than expected again. The extreme warm bias on the RAP/HRRR is pretty entertaining today and also why they're breaking out fairly widespread convection.

 

 

Could use the rain.  Looks like a prolonged period of generally seasonable to above average temps coming up.

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