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May 2011 general discussion/obs thread


Powerball

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Well, I'm just pointing this out because the earlier records may not be representative of today. It's a proven fact that downtown weather stations tend to run 2 or 3 degrees warmer than other stations. I mean Detroit in 1930 was nothing like it is today -- it was a burgeoning metropolis of 1.5 million people, with numerous auto factories working around-the-clock. All of the buildings and roads would have absorbed lots of heat (and cities didn't have trees and green spots like they do today to mitigate this effect) -- it was literally a concrete jungle. Plus all of the factories would have spewed a lot of heat. I don't think it's fair to compare records taken in a city of 1.5 million with those taken in a small town of 20,000 persons in the middle of a field at the airport.

Well Detroit is still as large as it was, it's just that everyone has sprawled out fron the center into the suburbs. If anything that would help the cause with all the added concrete (Metro Detroit isn't really cookie-cutter foresty like most suburban areas in big cities, it's heavily grided and dense). As for the factories, that's everywhere in the country now.

Then for Metro Airport, the tarmac usually heats up pretty well too. In fact, they're usually one of the warmer spots in the area during these types of setups.

EDIT: Even then, I don't think it makes that big of a difference WRT the temperatures in the grand scheme of things.

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90 now. Josh, what is the average first 90 degree day usually in detroit? Also how many do we average in summer, post la nina, or in general. Thanks.

I know you asked Josh and I'm not 100% sure about the first question, but Detroit averages twelve 90*F days per year.

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I know you asked Josh and I'm not 100% sure about the first question, but Detroitr averages twelve 90*F days per year.

Thanks. My bad, should've worded it differently as I welcome input from anyone. 12 doesn't seem like a lot but like josh, or possibly you, were saying yesterday, there is probably alot of 88/89 degree days.

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The temps with the humidity is making it feel like 109F here.

Temp is currently 88F

Dewpoint is 77F

Humidex is 109F

This is painful heat and humiditiy. MUCAPE is 6,000j/kg right now according to the SPC mesoanalysis page. In the severe thread they said it hit 8,000j/kg just north of here earlier this afternoon.

The downtown Kitchener weather station is reporting 92F right now. Must be the urban island effect

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ORD is 0.41" away from making this the wettest May on record (1945/7.50").

Looks like the storms that passed by only dropped .08 and unless something else fires (which looks unlikely at this point) Chicago will fall short of this record.

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ORD is 0.41" away from making this the wettest May on record (1945/7.59").

ORD will finish off the month with 7.27" of rain, which makes May 2011 the 3rd wettest May on record.

1. 1945 - 7.59"

2. 1883 - 7.32"

3. 2011 - 7.27"

4. 2004 - 7.22"

5. 1873 - 7.20"

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Well, I'm just pointing this out because the earlier records may not be representative of today. It's a proven fact that downtown weather stations tend to run 2 or 3 degrees warmer than other stations. I mean Detroit in 1930 was nothing like it is today -- it was a burgeoning metropolis of 1.5 million people, with numerous auto factories working around-the-clock. All of the buildings and roads would have absorbed lots of heat (and cities didn't have trees and green spots like they do today to mitigate this effect) -- it was literally a concrete jungle. Plus all of the factories would have spewed a lot of heat. I don't think it's fair to compare records taken in a city of 1.5 million with those taken in a small town of 20,000 persons in the middle of a field at the airport.

The heat island effect did not exist as much back in the day either, as it does now. Some of the 1960s and early 1970s lows at DTW are a lot more representative of a good radiating spot, but these days its really no different than DET. Oddly enough, recently DTW has been warmer than DET. Heres the past 7 days

Today:

DTW: 92/70

DET: 90/69

Yesterday:

DTW: 89/61

DET: 89/60

Sun:

DTW: 80/59

DET: 79/58

Sat:

DTW: 70/54

DET: 70/54

Fri:

DTW: 57/47

DET: 56/45

Thu:

DTW: 71/47

DET: 72/45

Wed:

DTW: 63/51

DET: 62/48

FWIW I did note that the low last winter at DTW was -5 while DET was 1, but again, overall it probably balances out.

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Most of the action missed us just to the NW.

Which is cool, it will bold well for tomorrow as we can heat up better despite the cooler temps aloft (drier grounds).

Went to the tigers game so I was grateful it stayed north. In macomb, where I live, we are batting .000 and are 0-3 in potential severe events. Always next time!

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000 SXUS73 KIWX 010930 RERFWA

RECORD EVENT REPORT

NATIONAL WEATHER SERVICE NORTHERN INDIANA

530 AM EDT WED JUN 1 2011

...WETTEST SPRING SEASON ON RECORD AT FORT WAYNE...

THE 2011 SPRING SEASON FROM MARCH 1ST THROUGH MAY 31ST WAS THE WETTEST SPRING SEASON ON RECORD AT FORT WAYNE. THERE WAS 18.50 INCHES OF PRECIPITATION THAT FELL OVER THE THREE MONTH SEASON...8.35 INCHES ABOVE NORMAL. THIS RANKS AS THE WETTEST SPRING ON RECORD AT FORT WAYNE SINCE RECORDS BEGAN IN 1897. THIS SURPASSES SPRING OF 1991 WHICH HAD 16.66 INCHES. $ LASHLEY

000 SXUS73 KIWX 290955 RERFWA

RECORD EVENT REPORT

NATIONAL WEATHER SERVICE NORTHERN INDIANA

555 AM EDT SUN MAY 29 2011

...WETTEST MAY ON RECORD AT FORT WAYNE...

...SECOND ALL TIME WETTEST MONTH ON RECORD...

AS OF 5 AM EDT...THE TOTAL MONTHLY RAINFALL FOR MAY AT FORT WAYNE IS 10.17 INCHES. THIS MAKES MAY 2011 THE WETTEST MAY ON RECORD AT FORT WAYNE...BREAKING THE 20 YEAR OLD MAY RECORD OF 8.80 INCHES BY MORE THAN AN INCH. IN ADDITION...MAY 2011 IS NOW THE SECOND WETTEST MONTH AT FORT WAYNE SINCE WEATHER RECORDS BEGAN IN 1861. THE RECORD MONTHLY RAINFALL AT FORT WAYNE IS 11.00 INCHES SET IN JULY 1986. $ SKIPPER

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The LAF rain gauge took a crap, so no idea on the exact total for May. Going off local COOP and CoCoRahs, it's in the neighborhood of 5.00-5.50" (EDIT: 5.82" at WLFI)...most of which fell in the last 10 days of the month. Certainly not a top 10 month, but above average. Couple that with the 10.00-11.00" combined from March and April and it's been an excessively wet spring here...like many others have experienced.

3rd 90 degree day of the month (and year) today, the same number as last year.

I'm surprised we didn't hit 100º in May. ;)

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  • 1 month later...

May and June were not fun if lake MI influences your temps on the west side. I would give the nod to may and june of 2011 being worse than 2009.. July has been a roaster no doubt but what if it hadn't and who knows what august will bring us yet.

MKE

May....High...Low...Mean

2011...62.5...46.1....54.3

2009...66.5...47.9....57.2

Avg.....66.0...46.2....56.1

ORD

May....High...Low...Mean

2011...67.8...48.0....57.9

2009...70.6...49.1....59.9

Avg.....69.9...47.5....58.7

MKE

June...High...Low...Mean

2011...74.2...55.9....65.0

2009...73.7...56.5....65.1

Avg.....76.3...56.3....66.3

ORD

June...High...Low...Mean

2011...79.4...59.5....69.4

2009...77.0...58.1....67.6

Avg.....79.2...57.2....68.2

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