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July Heat Wave Obs/Discussion


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MDW up to 101 and PWK up to 100 as of 5PM.

ORD keeps bouncing between 96/98 the past several OBS for some odd reason.

All of the CWOP stations in the general vicinity of ORD have hit 100.

Sitting at 97 here.

ORD back up to 99 on an early intra-hour observation.

What a sh*tty ASOS site (Yes Powerball, I am complaining...for two reasons. The odd bouncing around OBS and the fact today is another example of why it should not represent the city).

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...THE LAFAYETTE IN CLIMATE SUMMARY FOR JULY 21 2011...

VALID TODAY AS OF 0400 PM LOCAL TIME.

TEMPERATURE (F)

TODAY

MAXIMUM 101 225 PM

MINIMUM 76 618 AM

AVERAGE 89

Not a record though, as it was 104º on this date back in 1983.

Oh and this is wrong...

http://www.jconline.com/article/20110721/NEWS07/110721015/Air-temperatures-reach-100-degrees-Tippecanoe-County-?odyssey=tab|topnews|text|FRONTPAGE

Mike Koch, a meteorologist with the weather service, said Lafayette’s last 100 degree day was recorded on July 27, 1997.

July 30, 1999 was the last 100º temp at LAF, as noted by this:

LAFAYETTE PURDUE UNIV AP (129424)
Daily Almanac
Date: Jul 30, 2010

Record/Year    
100 in 1999

Anyways, this weather can go right back to hell where it came from. Literally.

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...THE LAFAYETTE IN CLIMATE SUMMARY FOR JULY 21 2011...

VALID TODAY AS OF 0400 PM LOCAL TIME.

TEMPERATURE (F)

TODAY

MAXIMUM 101 225 PM

MINIMUM 76 618 AM

AVERAGE 89

Not a record though, as it was 104º on this date back in 1983.

Oh and this is wrong...

http://www.jconline....|text|FRONTPAGE

July 30, 1999 was the last 100º temp at LAF, as noted by this:

LAFAYETTE PURDUE UNIV AP (129424)
Daily Almanac
Date: Jul 30, 2010

Record/Year    
100 in 1999

Anyways, this weather can go right back to hell where it came from. Literally.

So how is Chad's summer forecast working out? :)

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So how is Chad's summer forecast working out? :)

76.6 through today at LAF. He needs roughly 84.4 the rest of the summer for the 80.1 call to work out (I think my math is correct ;) ). About 82.0 to tie 1936 as the hottest summer on record.

As a comparison, 1936 was 78.0 through today. It averaged 80.3 the rest of the summer to finish at 79.0. Only 10 of the last 41 days that summer failed to break 90, with the last 5 days of met summer failing to do so. Of course the lows were lower due to the rural location back then, amongst other things. LAF's "mini UHI effect" will be in full force no doubt.

Jul 22, 1936	91.0	61.0
Jul 23, 1936	96.0	74.0
Jul 24, 1936	94.0	66.0
Jul 25, 1936	91.0	68.0
Jul 26, 1936	101.0	75.0
Jul 27, 1936	102.0	81.0
Jul 28, 1936	95.0	70.0
Jul 29, 1936	93.0	66.0
Jul 30, 1936	83.0	53.0
Jul 31, 1936	88.0	56.0
Aug 1, 1936	90.0	58.0
Aug 2, 1936	91.0	62.0
Aug 3, 1936	87.0	69.0
Aug 4, 1936	94.0	71.0
Aug 5, 1936	81.0	60.0
Aug 6, 1936	87.0	60.0
Aug 7, 1936	90.0	61.0
Aug 8, 1936	92.0	65.0
Aug 9, 1936	95.0	62.0
Aug 10, 1936	95.0	68.0
Aug 11, 1936	95.0	65.0
Aug 12, 1936	97.0	64.0
Aug 13, 1936	99.0	70.0
Aug 14, 1936	94.0	70.0
Aug 15, 1936	98.0	75.0
Aug 16, 1936	98.0	72.0
Aug 17, 1936	95.0	69.0
Aug 18, 1936	99.0	65.0
Aug 19, 1936	97.0	82.0
Aug 20, 1936	98.0	71.0
Aug 21, 1936	101.0	78.0
Aug 22, 1936	101.0	80.0
Aug 23, 1936	98.0	77.0
Aug 24, 1936	98.0	71.0
Aug 25, 1936	95.0	74.0
Aug 26, 1936	94.0	68.0
Aug 27, 1936	85.0	68.0
Aug 28, 1936	89.0	69.0
Aug 29, 1936	88.0	62.0
Aug 30, 1936	77.0	56.0
Aug 31, 1936	83.0	55.0

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If you want to play the game for Chicago, the current official site location withstanding, the hottest summer on record is 76.4 in 1955 (at MDW), followed closely by the 76.3 of 1995.

Through today, the average is 73.5 at ORD. An average of roughly 80.3 the rest of the way is needed to at least tie.

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High temperatures for Toronto (7/21):

Downtown Toronto: 101 (38.2 C)

Pearson Airport/YYZ: 100 (37.9 C)

Both stations set a daily record for the 21st. However, the all-time high temperature of 105, set in July 1936, at the downtown station remained intact. The 101 in downtown Toronto was the first time it has reached 100+ since September 2nd, 1953, where it got up to 100 that day. Pearson Airport has reached 100 a few times previously (July 7th, 1988 and August 8th, 2001).

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Today was crazy. What a bad day to go to an amusement park. I wound up getting sick from the heat. I've never felt anything like that... even in Florida in the summertime. 102 at Toledo Express today, 105 at Metcalf Field.

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Today was crazy. What a bad day to go to an amusement park. I wound up getting sick from the heat. I've never felt anything like that... even in Florida in the summertime. 102 at Toledo Express today, 105 at Metcalf Field.

A tad bit ironic a weather buff winds up with heat stroke :whistle:

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LAF up to 98 and my predicted high for them today..

Euro was right on the money all week pretty much and served me well in schooling hoosier.

Yeah, the GFS 2m temps were utter garbage (that isn't really surprising) but its MOS output was also too low. MOS was about 2-5 degrees too low even on the same day. NAM was better but the Euro performance was spectacular other than that run or two where it tried to bring storms in here.

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Well, for the first time since July 14, 1995, DTW hit 100F today! Peak heat index I believe was 112? The hourly reading at DTW never got higher than 98F (though it stayed there for 4 consecutive hourly readings, 2, 3, 4, and 5pm)....but intrahourly, 2:41pm, is when the 100F was recorded. Its been a year of extremes, a cold, snowy winter, a wet, gray spring, and now a hot, humid summer.

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The Great Lakes heatwave is beginning to winding down, the crest is nigh. Will enjoy the cool weather next week.

That's the thing, the 'cool' weather being forecasted for the week will technically still be above normal, the difference being instead of 10-15 above it will be more like 0-5 above normal. Furthermore we still have probably 3 more 90 degree days to get through before then maybe even 4 if Monday overachieves.

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At this rate this will be one of Detroit's top 3 hottest summers on record (it should easily surpass 2010).

Today could be interesting though. May be another overachiever temperature wise if the convective debris holds off to the north and west (mid 90s). Also could see some convection off the outflows from storms out west if the return flow can kick in soon enough.

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You actually came out of your freezer? ;)

...THE LAFAYETTE IN CLIMATE SUMMARY FOR JULY 21 2011...

VALID TODAY AS OF 0400 PM LOCAL TIME.

TEMPERATURE (F)

TODAY

MAXIMUM 101 225 PM

MINIMUM 76 618 AM

AVERAGE 89

Not a record though, as it was 104º on this date back in 1983.

Oh and this is wrong...

http://www.jconline....|text|FRONTPAGE

July 30, 1999 was the last 100º temp at LAF, as noted by this:

LAFAYETTE PURDUE UNIV AP (129424)
Daily Almanac
Date: Jul 30, 2010

Record/Year    
100 in 1999

Anyways, this weather can go right back to hell where it came from. Literally.

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Simple comparison of the July 1995 heat wave to the current one at MDW. Obviously the 1995 event had unfortunate deadly consequences in Chicago...let's hope this one has gone much better. Below are the high/low temps and (max dewpoint) for each day at MDW.

7/10/95: 90/64 (66)

7/11/95: 90/73 (71)

7/12/95: 98/76 (79)

7/13/95: 106/81 (81)

7/14/95: 102/84 (81)

7/15/95: 99/77 (79)

7/16/95: 94/76 (77)

7/16/11: 90/73 (65)

7/17/11: 95/73 (74)

7/18/11: 93/81 (78)

7/19/11: 91/81 (78)

7/20/11: 100/77 (75)

7/21/11: 101/82 (75)

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9AM obs (and eventual high temp for the day) for LAF for this week. Today is the highest 9AM heat index value. A little relief would be nice. :(

Today: 85/78/97 (TBD)

Thursday: 83/76/91 (101)

Wednesday: 81/76/87 (98)

Tuesday: 84/77/94 (97)

Monday: 78/74/80 (94)

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Maybe sometime next week, if you ask really nice... :lol:

9AM obs (and eventual high temp for the day) for LAF for this week. Today is the highest 9AM heat index value. A little relief would be nice. :(

Today: 85/78/97 (TBD)

Thursday: 83/76/91 (101)

Wednesday: 81/76/87 (98)

Tuesday: 84/77/94 (97)

Monday: 78/74/80 (94)

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That's the thing, the 'cool' weather being forecasted for the week will technically still be above normal, the difference being instead of 10-15 above it will be more like 0-5 above normal. Furthermore we still have probably 3 more 90 degree days to get through before then maybe even 4 if Monday overachieves.

Convection/precip may limit high temps in your area over the next few days...

post-558-0-67797100-1311344779.gif

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