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July Heat Wave Obs/Discussion


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Two different stations in MN metro recorded a HI of 121 last hour w/a dewpoint of 84. That is just gross.

TWIN CITIES MOSUNNY 93 82 70 SE16 29.80F HX 116

EDEN PRAIRIE SUNNY 94 84 73 SE14 29.79F HX 121

MOORHEAD MOSUNNY 93 84 75 S10 29.65S HX 121

it is beyond horrid outside here in eden prairie. never have i felt anything this hot. i have been in more comfortable saunas.

122F heat index is just beyond imaginable.

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If 86 was actually the state record, it fell yesterday at Madison.

Two different stations in MN metro recorded a HI of 121 last hour w/a dewpoint of 84. That is just gross.

TWIN CITIES MOSUNNY 93 82 70 SE16 29.80F HX 116

EDEN PRAIRIE SUNNY 94 84 73 SE14 29.79F HX 121

MOORHEAD MOSUNNY 93 84 75 S10 29.65S HX 121

That is a record dewpoint for MSP according to This U of MN page

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Nothing like sweating the minute you walk out the door.

it doesn't even take a minute.

i'm typing this on my deck now, and i started sweating in what seemed like seconds. i'm really curious to see what the 4pm obs will be.

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Two different stations in MN metro recorded a HI of 121 last hour w/a dewpoint of 84. That is just gross.

TWIN CITIES MOSUNNY 93 82 70 SE16 29.80F HX 116

EDEN PRAIRIE SUNNY 94 84 73 SE14 29.79F HX 121

MOORHEAD MOSUNNY 93 84 75 S10 29.65S HX 121

That is a record dewpoint for MSP according to This U of MN page

That's an amazing temperature and dewpoint recovery at MSP, after they dropped to 81/69 at 1 PM CDT from a thunderstorm.

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My original call for Wed/Thu is going to suck but that has been obvious for a while. I think 98/99 is more like it. Outside shot of 100 on Thursday as this airmass is well entrenched with slightly warmer temps aloft, but I'd give that like a 20% shot at this point.

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RECORD EVENT REPORT

NATIONAL WEATHER SERVICE CHICAGO IL

352 PM CDT WED JUL 19 2011

...RECORD HIGH TEMPERATURE FOR THE 19TH OF JULY TIED AT ROCKFORD IL

TODAY...

THE TEMPERATURE REACHED 100 DEGREES AT 229 PM CST (329 PM CDT) TODAY

AT ROCKFORD IL...WHICH TIED THE RECORD HIGH FOR JULY 19TH SET IN

1930.

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That is a record dewpoint for MSP according to This U of MN page

PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 400 PM CDT TUE JUL 19 2011

...UNOFFICIAL DEW POINT RECORD SET IN THE TWIN CITIES TODAY... THE DEW POINT TEMPERATURE AT THE MINNEAPOLIS ST PAUL INTERNATIONAL AIRPORT WAS 82 DEGREES ON THE 3 PM AND 4 PM OBSERVATION. THIS IS THE HIGHEST DEW POINT TEMPERATURE REPORTED ON AN HOURLY OBSERVATION AT THE MINNEAPOLIS ST PAUL INTERNATIONAL AIRPORT SINCE HOURLY DEW POINT RECORDS BEGAN IN 1945. THE PREVIOUS HOURLY DEW POINT RECORD WAS 81 DEGREES...WHICH WAS SET ON JULY 30TH 1999. A DEW POINT OF 81 DEGREES WAS ALSO REPORTED AT THE AIRPORT ON SUNDAY...MONDAY...AND EARLIER TODAY /JULY 17-19/. THE MINNESOTA STATE CLIMATOLOGY OFFICE IS THE OFFICIAL SOURCE OF DEW POINT RECORDS ACROSS THE STATE. THIS NEW RECORD WILL BE CONSIDERED UNOFFICIAL UNTIL IT IS CONFIRMED BY THE STAFF AT THE STATE CLIMATE OFFICE.

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Updates on the month-to-date standings (with today's high/low added on)... these should be moving upwards considerably in the coming days with highs in the 90s Wednesday through Saturday, and lows in the 70s to near 80. Interestingly, most of the warmer months were from a bygone era when temperatures were taken at downtown weather stations, often on rooftops. Had observing practices remained the same over the period of record, this might already be a record at many locations.

DTW 78.1 (3rd warmest)

FNT 76.1 (5th warmest)

TOL 77.4 (9th warmest)

CLE 76.2 (6th warmest)

MFD 74.9 (7th warmest)

ORD 78.3 (6th warmest)

RFD 78.3 (5th warmest)

IND 80.0 (7th warmest)

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it is beyond horrid outside here in eden prairie. never have i felt anything this hot. i have been in more comfortable saunas.

122F heat index is just beyond imaginable.

That has got to be tough on the good folks of MSP. It get's hot there but not like this. I sure hope the road workers are doing well, anyone in the outdoor trades has got to be dropping dead about now. Take care.

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A definite shot at 100 for tomorrow, but who knows? It doesn't even really matter, even hitting 100 doesn't seem like much of a milestone when I see obs like 100/81 occurring semi-regularly in this heat wave. Got a brief reprieve today, if you can call 85 with a HI in the 90s a reprieve.

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I'm starting to get really suspicious about the weather station in town. Third day in a row it says the temp was over 37. No updates yet from the operator. 37 would be a new record high temp.

Date: July 19, 2011 Time: 5:45 pm

Temperature (current): 32.9 °C

Temperature (24 hour max/min): 38 °C /17 °C

Humidex: 43.2

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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE QUAD CITIES IA IL

340 PM CDT TUE JUL 19 2011

...PUBLIC INFORMATION STATEMENT...

MOLINE ILLINOIS HAS HIT THE 100 DEGREE MARK. THE LAST TIME IT HAS

BEEN THIS HOT WAS ON JULY 17 2006 WHEN THE HIGH TEMPERATURE WAS

100. THE RECORD HIGH FOR TODAY IS 101 DEGREES SET IN 1934. PRIOR

TO TODAY...THERE WERE ONLY FOUR DAYS AS HOT OR HOTTER SINCE 1990.

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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE QUAD CITIES IA IL

340 PM CDT TUE JUL 19 2011

...PUBLIC INFORMATION STATEMENT...

MOLINE ILLINOIS HAS HIT THE 100 DEGREE MARK. THE LAST TIME IT HAS

BEEN THIS HOT WAS ON JULY 17 2006 WHEN THE HIGH TEMPERATURE WAS

100. THE RECORD HIGH FOR TODAY IS 101 DEGREES SET IN 1934. PRIOR

TO TODAY...THERE WERE ONLY FOUR DAYS AS HOT OR HOTTER SINCE 1990.

Yep they're back up to 100/78 HI 118 this hour. Cooled back to 94/80 HI 115 here with thunderheads now blocking the western sun.

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RECORD EVENT REPORT

NATIONAL WEATHER SERVICE CHICAGO IL

352 PM CDT WED JUL 19 2011

...RECORD HIGH TEMPERATURE FOR THE 19TH OF JULY TIED AT ROCKFORD IL

TODAY...

THE TEMPERATURE REACHED 100 DEGREES AT 229 PM CST (329 PM CDT) TODAY

AT ROCKFORD IL...WHICH TIED THE RECORD HIGH FOR JULY 19TH SET IN

1930.

First 100+ temp in 22 years...

PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE CHICAGO IL

424 PM CDT TUE JUL 19 2011 /524 PM EDT TUE JUL 19 2011/

..INFORMATION ON 100 DEGREE TEMPERATURES IN CHICAGO AND ROCKFORD

ROCKFORD REACHED 100 DEGREES AT 329 PM CDT TODAY...WHICH TIED THE

RECORD HIGH FOR JULY 19TH SET IN 1930. THE LAST TIME IT WAS 100

DEGREES IN ROCKFORD WAS JULY 10TH 1989.

THE FORECAST HIGH TEMPERATURE FOR OHARE AIRPORT TOMORROW IS IN

THE UPPER 90S...BUT IT IS POSSIBLE THAT TEMPERATURES COULD REACH

100 DEGREES. OHARE IS THE OFFICIAL CLIMATE SITE FOR THE CITY OF

CHICAGO. THE LAST TIME IT REACHED 100 DEGREES IN CHICAGO WAS JULY

24TH 2005 WHEN THE HIGH FOR THE DAY WAS 102 DEGREES.

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it is beyond horrid outside here in eden prairie. never have i felt anything this hot. i have been in more comfortable saunas.

122F heat index is just beyond imaginable.

That is just brutal. Never felt anything like that in the cities before--not even close. We hit 80 degree dewpoint here the other day for an hour or two, but by then the temp was only in the 80s.

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I feel for all you Midwesterners having to deal with this unbelievably humid heatwave. Ugh...thankfully, Denver has been just far enough west to avoid the heat ridge for the most part. In 2005, we were baking during this stretch (highs 101-105 the 19th-23rd), but highs have stayed in the low/mid 90s this time around. And of course, WAY lower humidity here than what you folks have to sweat through.

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