yoda

00z 3km NAM has 2" of snow at DCA by 03z TUES and still snowing nicely

Hopefully we are able to get enhancement from the coastal like 18z showed in the next few frames

I think DGZ looks good to at hr 48 and 51? @WxUSAF is that right looking at the soundings in DC metro?

15z sounding at DCA has dry air at 900mb and below... so i guess its virga as @StormyClearweather said above

hr 48 will be the make or break..

PV says so lol

Light snow in the region by 12z Mon

MRX issued though, not RNK

Nice... agrees with pretty much the rest of the 18z suite

No. Look at the maps above on the page before

So far, pretty nice 18z suite across the board. 18z NAM/18z 3km NAM/18z RGEM/18z ICON show 2-3" across the majority of the LWX CWA. Some higher amounts in N MD (up to 5" on the 18z ICON) and 4-8" on the 18z NAM (for i95 corridor from Manassas into NE MD)

2-4/3-5

18z RGEM 2-4" of snow in N VA/C MD, including DC and BWI metros. Also drops up to a tenth inch of ice on top Tuesday along i95 corridor

Correction... 4-9" through 78

18z NAM goes for 3-5" from around Prince William County into NE MD... including BWI and DC metro

Interestingly, 18z 3km NAM likes SOUTH of DC for 2-3"... from CHO to EZF into S MD through 56

18z NAM has 1-3" in a DC-BWI-DOV triangle jackpot region through 54

18z 3km NAM looks nice between 17z and 18z in DC metro tomorrow afternoon

LWX afternoon AFD Monday will start out dry outside of the Alleghenies where upslope snow showers are expected. High temperatures will reach the low to mid 30s for most of the area with higher elevations staying in the 20s. Shortwave energy aloft will lead to a chance of light snow areawide Monday afternoon, with accumulations ranging from 0.5-1.5" outside the Alleghenies where higher accumulations are possible. We will continue to monitor as there is a good bit of model discrepancy with this system. Low temperatures Monday night will fall into the 20s for most with higher elevations dipping into the teens. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... A broad area of lower heights will persist across much of the CONUS over the next week. Over time, ridging builds near the West Coast, and downstream blocking may develop near the Canadian Maritimes. At the surface, Arctic high pressure will build over the central to eastern CONUS while multiple waves of low pressure pass from the Mid- South toward the Carolinas and Mid-Atlantic. One wave of low pressure will likely pass to the south Monday night into Tuesday. Mid/upper-level forcing coupled with modest moisture should result in the development of some light snow across at least parts of the area. Guidance continues to gradually come into better agreement on a light, jet-induced snow event well northwest of a weak and progressive surface low offshore. This is not a traditional or classic setup for widespread significant snow, but the timing of any accumulating snow coupled with very cold temperatures with the Tuesday morning commute could prove treacherous. Additionally, it has been about two years since the DC Metro saw more than an inch of snow, which may also magnify any potential impacts.

Friday morning

I wouldn't mind the 12z UKIE... 1-3/2-4

Well I meant more Matt's post about the 00z GFS tonight

It will be one simple post -- NEXT

TPV looks a bit more stretched out and westward at h5... and energy on back side is more NW and stronger on the 18z RGEM at 84 compared to the 18z NAM at 84