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December 22-23, 2022: Warm Rain to Arctic Chill


WxUSAF
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3 minutes ago, MN Transplant said:

The 12z HRRR is calling for a near record low at DCA (5 degrees, 1983) on Saturday.  I don’t recall off the top of my head the last time DCA was in the single digits.  2019?

DCA's lowest temperature during the 18/19 season was 10F on 1/31. The latest single digit reading at the airport was 8F on 1/7/18. 5F as a low temperature would be the lowest that location has been since 2/20/15 (Also 5F).

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8 minutes ago, MN Transplant said:

The 12z HRRR is calling for a near record low at DCA (5 degrees, 1983) on Saturday.  I don’t recall off the top of my head the last time DCA was in the single digits.  2019?

Without snowcover, that would be a really impressive temperature for that site.

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1 minute ago, North Balti Zen said:

oh good. I was afraid for a minute you would find something optimistic to post. 

Always better to post optimistic things with no facts behind them than the reality. How's that working out for all of those that were wishcasting snow for their backyards this morning?

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9 minutes ago, WeatherShak said:

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My brother’s house in Harrisburg PA. Happy for him. Will be at my cabin near Berkeley Springs next week. Hoping the midweek wave turns into something.

Excuse me sir, trixie has informed us that your post is a violation of this sub forum. Thank you.

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8 minutes ago, Cobalt said:

DCA's lowest temperature during the 18/19 season was 10F on 1/31. The latest single digit reading at the airport was 8F on 1/7/18. 5F as a low temperature would be the lowest that location has been since 2/20/15 (Also 5F).

 

7 minutes ago, mattie g said:

Without snowcover, that would be a really impressive temperature for that site.

It looks like the HRRR is running 4-5 degrees colder than the other models, so 10 is a better forecast.  Still, a pretty good situation to get DCA low since we aren’t counting on radiational cooling.  
 

My lowest December temp since getting my station in 2011 is 13.  Should have no trouble beating that.

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11 minutes ago, MN Transplant said:

 

It looks like the HRRR is running 4-5 degrees colder than the other models, so 10 is a better forecast.  Still, a pretty good situation to get DCA low since we aren’t counting on radiational cooling.  
 

My lowest December temp since getting my station in 2011 is 13.  Should have no trouble beating that.

I will be shocked if we ever see 83 again. -7 on Christmas morning is probably a record that will stand forever in the Winchester area.

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