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URGENT - WINTER WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
342 PM EDT Mon Mar 19 2018

DCZ001-MDZ011-013-014-504-506-VAZ025>027-029-030-040-052>054-501-
506>508-200345-
/O.EXB.KLWX.WS.A.0004.180321T0400Z-180322T0000Z/
District of Columbia-Southern Baltimore-Prince Georges-
Anne Arundel-Central and Southeast Montgomery-
Central and Southeast Howard-Augusta-Rockingham-Shenandoah-Page-
Warren-Rappahannock-Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Northern Fauquier-
Eastern Loudoun-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-
342 PM EDT Mon Mar 19 2018

...WINTER STORM WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY EVENING...

* WHAT...Heavy wet snow possible, with a total wet snow
  accumulation of 5 inches or more.

* WHERE...Metropolitan Baltimore and Washington areas, as well as
  the northern and central Shenandoah Valley.

* WHEN...From late Tuesday night through Wednesday evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions.
  Significant reductions in visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

2 minutes ago, Amped said:

4-7 for DC and 6-10 Baltimore to Boston  and 1-3 for DCA looks good for now.

that's quite a gradient between DCA and DC... 

Wakefield issues watches for the Shore. 

URGENT - WINTER WEATHER MESSAGE
National Weather Service Wakefield VA
329 PM EDT Mon Mar 19 2018

MDZ021>025-200330-
/O.NEW.KAKQ.WS.A.0002.180321T1000Z-180322T0300Z/
Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches-
Including the cities of Cambridge, Salisbury, Crisfield,
Princess Anne, Snow Hill, and Ocean City
329 PM EDT Mon Mar 19 2018

...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...

* WHAT...Heavy snow possible. Total snow accumulations of 3 to 5
  inches are possible.

* WHERE...Dorchester, Wicomico, Somerset, Inland Worcester County
  and the Maryland Beaches.

* WHEN...From Wednesday morning through Wednesday evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the evening commute on Wednesday. Significant
  reductions in visibility are possible.

LWX has an interesting task ahead of them for this update irt which advisories to issue given the trends and temperature uncertainty with a boatload of QPF incoming.

LWX's probability maps (update just before 5PM) are whack right now. 

54% of 2" or more in DC; 38% of 4" or more; 26% of half a foot and 16% of 8" with a cute 5% chance of a foot.

heh

Reason 6383 I hate TWC: telling friends with travel plans about this storm, getting inevitable response of "weather.com says only an inch or two with mostly rain" 

3 minutes ago, SeanInWayland said:

I'll echo my earlier advice, Prof. C. Change your flight to get into T F Green instead, and you should be OK. I've utilized this trick numerous times and always been glad I did.

Thanks ;). Then you Amtrak to Boston?

Just now, weathafella said:

Can you come back today?

Yeah if I need to tonight. I might move to 1:30 PM tomorrow, winds shouldn't be bad yet. 

I've never been this unsure if I should move my flight... getting into BOS at 3 PM Sun from CLT (layover from MEM). Like I should be fine... But in the off chance I'm not I could be stuck til Tuesday soo

I've never been this unsure if I should move my flight... getting into BOS at 3 PM Sun from CLT (layover from MEM). Like I should be fine... But in the off chance I'm not I could be stuck til Tuesday soo

I land in Boston (from CLT) on Sunday 3 PM.

oof

For those of you who are more familiar with airports around here and snow, what are the odds that a 9 AM flight from BOS to LGA (then 11:30 AM LGA--MEM) is on tomorrow?

Just love the band right now and how it's just hanging out.

Thoughts on odds as to whether a 9 AM flight tomorrow from BOS---LGA (then MEM) is cancelled?

Even more than most systems, people just aren't that aware of this storm coming. I know it's Boston but I think it's a mix of the relative surprise here combined with it not being a 12"+ areawide event plus weekend.

A surprise bullseye could be pretty close to BOS, EURO looking like that'll be possible 

I wonder if this conservativeness is a function of predicting pretty much nothing yesterday and even early today for some mets. 4-8" sounds moderate, but if they said 6-12" right now it seems like more of a bust. 4-8" to 6-12" (will be the forecast later) seems like a progression of small jumps. 

The TV mets know that many in this area have nearly zero chance of getting 4 inches out of this

Advisories up for SE NH and Coastal Maine

16.75" in Pikesville

Just went on a very long walk. Days like this make our obsessive model watching for weeks that nobody else really understands so so worth it

Just waking up after a surprising 3.5 hours of sleep. How's baltimore lookin?

DCA and BWI both at 9" as of 3 AM. IAD hit 11". 

Band coming up the bay is 14,000 KFT with 5-10 VIL and has dropped a inch of liquid over the bay and Western eastern shore in 45 Min

Holy ****.

That thing coming up the Bay....

7.5" or so in Pikesville. Coming down nicely

Not far from you in Mt Washington and same observation. This should be an awesome night.

Up to 4.5" here down the road from Mt. Washington. Looks like we will add to this nicely in the next 2 hours.

Just 2.3" - only .3 last hour - just really awful snow growth so far - Roland park area balt city.

Sent from my iPhone using Tapatalk

Edit: started to pick up in last 20 minutes or so, though

More like record virga up here.

Ha, I remember you from these boards during our craziness last year . Meant that DC/Baltimore could break the Boston all-time record with this storm (27.5"). 

Looks like y'all could get more than previously expected too, though? At least in SNE?