Terpeast

For now, this is the best use case for AI in weather. We are not there yet for mesoscale.

Low of 18

Apparently that 2.0” report in Ashburn wasn’t actually from me, it was from a NWS employee. I just so happened to report that same exact amount.

I’m certain, yes. If the cold air boundary was faster and further south, the fgen band would also have been south. DC would have gotten what it was forecast for, and Harrisburg would have gotten much less.

Looks like my forecast did alright for far NW burbs, busted pretty badly along i-95. Mby got close to low end of 3”, probably did reach that if I measured using a snowboard, but I just stuck a ruler on the sidewalk and again on my deck so I naturally got a more conservative number given all the compaction and melting. What went wrong? Simple. Cold air got delayed a few hours, while best frontgen banding was 30 miles NW of model outputs. Tough to get those mesoscale details right even 12-24 hours in advance, impossible beyond 24h. It didn’t impact places like Round Hill or Frederick much, but such a minor shift robbed us in the i-95 corridor. Unfortunate but it is what it is. Nrn folks, this one was yours. Enjoy! I know I did, too!

12/24: 0.1” 1/3: 0.3” 1/6: 7.6” 1/11: 1.3” 1/16: 0.5” 1/19: 2.0” Season total: 11.8”

I’ll be conservative and report 2.0” because that’s what I measured on the deck and sidewalk.

Smart move. All this slush is gonna ice over. It’ll be a glacier for a week

Had a great time with my daughter in whiteout conditions! I measured 1.5” when we first went out, but the death band dropped another inch on top! Streets had 2” of slush and heavily compacted cement, and it was harder than shoveling 6-7” of powder. On grass and old snow, there was 3” of new snow! I may split the difference and send in 2.5” as my spotter report. But radar says we’re not done yet. Maybe round me up to 3” official?

Going to take my daughter outside. This is what we live for

I’m trying for 2” so maybe the NW suburbs. In the city, not so sure. BWI might get it

Same! But may have been a tad bullish for dc metro

Down to 32.5

Just passed 1”. Now if it keeps up another hour the grass will be completely covered and sleddable. Kid will be very happy with this

Puking right now. 1.5”/hr rates at least

Band of yellows just w of warrenton making a beeline towards leesburg/ashburn and maybe reston. Hope it holds

Just jebwalked with my wife. She’s never seen it snow this hard before in her life. This slush is going to become really icy when it freezes over

Closing on 1 inch

IMG_7164.mov

Band from warrenton to Gaithersburg is legit. Ripping!

Thats the spirit. It’s all white out there now

Heavy rimed snow, wind driven, 0.5” now. 32.7 looking wintry out there now

Getting windy. Arctic front upon us now. Radar looks like things will get more interesting for the closer in NW burbs

Mod snow, accumulating more efficiently now. 32.9