WxUSAF

I think we all also got a little fast and loose with the Kuchera ratios. Usually Kuchera gives us less than 10:1 so we mostly ignore it. This time it was >10:1 and we bought that too much. I'd guess my total precipitation amount is not far off the ~0.5" the 12z Euro and 3k Nam gave me yesterday. Nearest PWS actually has 0.49" and it's clogged with snow (hasn't updated in awhile). Think we just ignored that most of this morning stuff would be ~10:1.

2nd spotter report and snowboard wipe: 1.8" new last 6 hours, 5.9" total Snowing quite well now with dendrite aggregates. Will cross 6" imminently. Gonna make a run at 8"...

GEPS looks good allegedly? GEFS like

Light snow with good flakes

I’m guessing GEFS is playing follow the leader so I’d like to see EPS play ball

Glad to hear that. I’ve been watching those the last hour.

5.5" total. 0.2" last 1.25 hours. Very light snizzle right now. Temp up to 25.

Think I was looking at 13z, but 14z looks solid as well. Maybe a bit better even in spots.

Most of this N/W of 95 in MD is probably the ULL. I think 2" with the ULL is possible with good ratios.

Hrrr juicier than 3k Nam for ULL this evening. Go Hrrr! Be right for once!

Yeah the 700mb front genesis band occurred, but WAY far north.

0.3-0.4” last hour. 5.3” storm total.

Stopped briefly, but coming down really well right now.

0.9" last hour. 5" on the dot for storm total.

Ah…rounding

Dumping with big flakes in Columbia

First snowboard wipe. 4.1" official report, so 1.1" in the last 1.5 hours. Snowing well now with good size flakes. Still 24F.

DCA with at least 5" per their ob

Rt 50 corridor in MD between you and @MillvilleWx seems like the probable jackpot zone. Congrats dude.

Guidance yesterday all had this window around 12z as the farthest north push of the warm air with greatest chance of mixing. It should retreat southward as the morning progresses.

Was getting a little subsidence ahead of that band for the last 20 mins or so, but now both flake size and rates picking back up as it approaches. Should be a good next hour+ for HoCo. I was always skeptical of ratios much more than 10:1 with the WAA precipitation except for the far north folks. For dendrites, you want temps in the snow growth area aloft between -10 and -20C. And also aligned with the best vertical motion AND not overly strong horizontal winds. Didn't really look like that before this evening's snow.

Seems I’m only allocated 5 reactions today. So imaginary likes and reactions to everyone!

There’s a google form for official spotter reports

Good morning everyone. Exactly 3” on the snowboard. 24F with mod to heavy snow. Small flakes.