Heads UP! Snow squalls could be dangerous late Tuesday afternoon

First, an update on the next storm…..
http://www.erh.noaa.gov/okx/stormtotalprecip.php
has the first map of predicted snowfall for the NYC area.
This forecast is still a rough estimate, since the NWS office wants to see another forecast model run, first.
For other cities, check the home page of your local NWS office.
The map is included below, after the discussion of this afternoon’s event.

These snow squalls may not be seen everywhere, but where they occur, they may have a severe impact if you are in one of these short-lived storms.
More on Thursday/Friday’s storm early this afternoon. The weather forecasting models are coming closer together, but the NYC NWS wants to see another run of the models first. (I used to say that all the time at Rutgers.)
Quoting….
ISOLATED SNOW SQUALLS (15-20 PERCENT PROBABILITY) WITH
BRIEF WHITE OUT CONDITIONS AND A QUICK COATING OF SNOW ARE
POSSIBLE. ANY AREA EXPERIENCING A SNOW SQUALL WILL HAVE POTENTIAL
FOR FLASH FREEZE CONDITIONS AS TEMPS START OUT AROUND OR JUST
ABOVE FREEZING AND THEN DROP INTO THE 20S IN THE WAKE OF COLD
PASSAGE.

ANY SNOW SHOWER/SNOW SQUALL ACTIVITY WILL QUICKLY COME TO AN END
BEHIND FRONTAL PASSAGE…WITH A BRIEF PERIOD OF STRONG WINDS GUSTS
LIKELY IMMEDIATELY BEHIND COLD FRONTAL PASSAGE LATE THIS
AFTERNOON/EARLY EVENING. GUSTS TO 35 MPH LIKELY AND TO 40 MPH
POSSIBLE DURING THE LATE AFTERNOON/EARLY EVENING
. . . . . .
.LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/…
POTENTIAL FOR A SIGNIFICANT COASTAL STORM LATE THIS
WEEK…FOLLOWED BY BITTERLY COLD TEMPERATURES…

00Z DETERMINISTIC MODELS HAVE COME INTO BETTER ALIGNMENT YIELDING
HIGHER CONFIDENCE FOR A SIGNIFICANT COASTAL STORM TO IMPACT THE AREA
LATE THIS WEEK. HOWEVER…WOULD LIKE TO SEE ANOTHER CONSISTENT SET
OF DATA BEFORE ISSUING ANY WATCHES.

945am Tu Dec 31 snowfall forecast for Th/Fr Jan 2/3

945am Tu Dec 31 snowfall forecast for Th/Fr Jan 2/3

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