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May 2022 General Discussion


Spartman
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The dewpoints crashed from above 70 yesterday afternoon into the low 40s this afternoon.  87 was the high both yesterday and today, so no temperature change.  Just went from tropical warmth to semi-arid warmth.  It seems like the mid-Michigan backdoor dryline is a new climate feature as of late.

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Northern Lower Michigan just torched today.

Record highs set today:


Traverse City: 96° (86°, 1944) also the highest temp recorded in the month of May

Pellston: 91° (87°, 2004)

Gaylord: 90° (84°, 1991)

Alpena: 89° (87°, 2004)

Houghton Lake: 87° (tied, 1991)

 

Other MI records toppled:

MBS: 88° (86°, 1991

GRR: 87° (86°, 1896)

Muskegon: 91° (83°, 2011)

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  On 5/13/2022 at 2:10 AM, Maxim said:

It’s so obvious ORD is cold biased. Any reason why the sensor itself can’t be replaced?

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I wonder if it's really cold biased or if it's moreso that it lost the warm bias that it had on daytime highs.  Chi Storm would remember better than me but I believe there was a period of time where there was a lot of construction happening around the ob site.  I think the ob location also moved to a different location on the airport grounds, so maybe that is a factor?

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  On 5/13/2022 at 2:38 AM, Hoosier said:

I wonder if it's really cold biased or if it's moreso that it lost the warm bias that it had on daytime highs.  Chi Storm would remember better than me but I believe there was a period of time where there was a lot of construction happening around the ob site.  I think the ob location also moved to a different location on the airport grounds, so maybe that is a factor?

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This is pretty telling...

KORD.png

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  On 5/13/2022 at 2:38 AM, Hoosier said:

I wonder if it's really cold biased or if it's moreso that it lost the warm bias that it had on daytime highs.  Chi Storm would remember better than me but I believe there was a period of time where there was a lot of construction happening around the ob site.  I think the ob location also moved to a different location on the airport grounds, so maybe that is a factor?

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Yeah if you look at MDW vs ORD 2020 was definitely an anomaly where ORD had a warm bias. Compared to MDW at least. I am using the NWS Monthly Summarized NOWData, average temps at MDW vs ORD

image.thumb.png.be8a168e0a1e9d6be3495df1c869f2aa.png

image.png.1a250203e485ebcefba4360b2d48fdbb.png

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  On 5/13/2022 at 12:48 PM, beavis1729 said:

The 96 in Traverse City is insane.
 

The low of 74 yesterday morning in Rockford barely held on through 1AM …so a new all-time warmest min temp record for May was set. Old record 73 on 5/22/1905.

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Traverse City is a terrain-induced hot spot whenever the wind is SE.  It's normally only about 3 degrees warmer though.  It's strange as the lapse rate would have to be super-adiabatic on the extreme end to get 6 degrees warmer than Gaylord (based on elevation alone), but it has happened before.  It's kind of a meteorological mystery to me how that city can get so toasty.

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  On 5/13/2022 at 2:38 AM, Hoosier said:
I wonder if it's really cold biased or if it's moreso that it lost the warm bias that it had on daytime highs.  Chi Storm would remember better than me but I believe there was a period of time where there was a lot of construction happening around the ob site.  I think the ob location also moved to a different location on the airport grounds, so maybe that is a factor?

That construction is still happening, and will increase quite a bit over the next few years as I-490 is built.
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