MN Transplant

12 hours ago, yoda said:

00z NAM has 60 to 70mph winds along DCA to BWI corridor 

NWS has gusts to 40mph.  That makes sense.

Casual 17 degree spread over a couple of miles

This would be a bummer for a lot of places that are used to a White Christmas.

8 minutes ago, Weather Will said:

WB 18Z NAM, winds are crazy Sunday night....

The coast may get interesting, but those SE winds rarely ever mix down inland.

1 hour ago, mattie g said:

Remember when someone set up an emergency alternate site/server for if AmWx went down? Wonder if we should start a Mid-Atlantic weather subreddit or something...

Probably.  We can all use our Reddit alts.

56 minutes ago, Eskimo Joe said:

 

 

Not gonna lie, I read the name as Kestrel and thought it was appropriate

15 hours ago, RIC Airport said:

In the station notes, it says DCA was upgraded with a 40" stick back in December 2021. Why it took so long, I am not sure.

That is shockingly comical

40 minutes ago, Its a Breeze said:

Did they change it after '16? When an observer went to DCA and had a completely different measurement than the official amount?

Was that the one where they lost track of the snow board?

7 hours ago, WEATHER53 said:

This is very true that’s it’s not really a weather station but an airport facilities station . Most people snd even seasoned weather people think it an official weather station.  So, if the thermometers are located such that measurements and temps can easily be retrieved manually then that location will be part of the airport buildings complexes and things like can it radiate comparatively and accumulate snow comparatively are non priority issues.

I started saying this here 15 years ago and constantly got scalded so I just gave up. I had and have a lot of details from my affiliations with MIC and know what they prioritize and often got told “we ain’t here for weather weenies” 

DCA's ASOS is on the east (river) side of the runways.  It is not near the buildings.  Now, the snowfall measurement location is a completely different issue, but they seem to have fixed that in the past 5 years or so.

12/11/2023 - 0.7"

It is always sun angle season

After driving down towards the river, I’m shocked that DCA did get on the board.  There is no sign at all that it snowed, other than the cars that came in from higher elevations.

Revising mine to 0.7” after a few more measurements.  1.58” total liquid.  Hard to get a good snow water equivalent, but my best guess is a 3:1 ratio.

Tried to give the white one her first snow experience.  I don’t think she wanted to be up and about.

Beautiful.  Grass is white. Surprised by the temp down to 32.4.

The Vikings have set back football 100 years in the past two weeks.  And they are still in the 6th seed in the NFC.  

At Dulles

12z HRRR stays warm at the surface, so no snow depth accumulation for most of us.

The 06z NAM 3km drops 0.6" precip in my backyard after the switchover.  I love that stupid weenie model.

06z NAM 3k and HRRR (now in range) are simply too warm at the surface. 

4 minutes ago, NorthArlington101 said:

GFS isn't joining the NAM party. We'll try again at 0z!

The GFS is actually cold enough aloft but the surface temps and dew points are too warm.  That's why it is still signaling rain during this panel time.

10 minutes ago, WxUSAF said:

That 3k is the best look I’ve seen for this. 

This is the composite sim and sounding as the rain/snow line is hitting 95.  Not bad.

On 12/7/2023 at 10:11 AM, pazzo83 said:

Does anyone recall a product from I believe the Utah Climate Center where you could create all kinds of plots of various temperature variables for a particular station?  For example, you could do the hourly count of say a dewpoint above 80F for the hours of the day within the period of record for a station.  That service does not seem to be available anymore, does anyone know what happened to it?

Iowa State.  Utah state has the best download site for the full climate record for stations, but Iowa State's has the fun tools.

https://mesonet.agron.iastate.edu/plotting/auto/

Flurries in Alexandria