Wednesday, July 25, 2007

Record hot and humid day over Southern MB

Special weather statement from Environment Canada, Winnipeg - July 25 2007.. (graph showing heat index and dewpoints from Rob's Obs)

HOT AND MOIST AIR FROM THE CENTRAL UNITED STATES CONTINUED TO FLOW INTO SOUTHERN MANITOBA ON WEDNESDAY. THE HIGH TEMPERATURES COMBINING WITH THE EXTREME HUMIDITY LED TO RECORD HIGH TEMPERATURES AND RECORD HIGH HUMIDEX VALUES OVER SOUTHERN MANITOBA TODAY. WINNIPEG SET AN ALL TIME RECORD FOR THE HIGHEST HUMIDEX READING EVER RECORDED AT THE WINNIPEG AIRPORT. HUMIDEX VALUES PEAKED AT 47 LATE THIS AFTERNOON BREAKING THE ALL TIME WINNIPEG RECORD OF 46.1 SET BACK ON JUNE 27, 1996. AS WELL CARMAN, MANITOBA UNOFFICIALLY SET AN ALL TIME CANADIAN RECORD HIGH HUMIDEX WHEN VALUES CLIMBED TO 53 LATE THIS AFTERNOON, BREAKING THE RECORD PREVIOUSLY HELD BY WINDSOR, ONTARIO OF 52.1 SET ON JUNE 20, 1953.

THE HUMIDEX IS AN INDEX (A COMPUTED VALUE AS OPPOSED TO SOMETHING MEASURED) DEVISED TO DESCRIBE HOW HOT OR HUMID WEATHER FEELS TO THE AVERAGE PERSON. THE HUMIDEX COMBINES THE TEMPERATURE AND HUMIDITY INTO ONE NUMBER TO REFLECT THE PERCEIVED TEMPERATURE. IT TAKES INTO ACCOUNT THESE TWO IMPORTANT FACTORS TO BETTER DESCRIBE HOW STIFLING THE AIR FEELS THAN EITHER TEMPERATURE OR HUMIDITY ALONE.

THE FOLLOWING ARE THE UNOFFICIAL NEW MAXIMUM TEMPERATURE RECORDS AS OF 5:00 P.M. WEDNESDAY JULY 25.

GILLAM 28.8 28.1 1983
PINAWA 34.3 34.0 1989
GRETNA 33.2 32.2 1961
CARMAN 34.0 28.1 1997

THE FOLLOWING ARE LOCATIONS THAT CAME CLOSE TO BREAKING THEIR MAXIMUM TEMPERATURE RECORDS.

GIMLI 32.1 33.1 1989
ISLAND LAKE 29.6 29.7 1989
THOMPSON 27.4 28.7 1989
CHURCHILL 28.2 30.0 1929
FISHER BRANCH 30.5 32.2 2003
WINNIPEG 35.3 36.7 1931

3 comments:

  1. What a day! Won't see one like this in a long time, I'm sure. 22 down here now after round 1 of tonight's storms.

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  2. Record humidex.. severe thunderstorms.. yep, it was a very interesting day. My website got over 1,000 hits today, highest daily hit count since I started it. (I usually average about 200-300 hits a day)

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  3. Wow...that's a lot of hits. Mine doesn't get too many, but there aren't too many people with computers in a small town like this. Plus, I haven't had it going that long. Looks like we will have round 2 this weekend into early next week, then a break, then round 3, and then maybe the end of the heat wave. I have that on my wx discussion part of my weather page.

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