Severe Storm Outlook Narrative (AC)
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ACUS11 KWNS 030339
SPC MCD 030339

Mesoscale Discussion 0130
NWS Storm Prediction Center Norman OK
0939 PM CST Thu Feb 02 2023

Areas affected...Northern into central PA...central NY...VT...and
western NH

Concerning...Snow Squall

Valid 030339Z - 030745Z

SUMMARY...Snow squalls could continue spreading east-southeastward
across parts of the Northeast during the next few hours. Rapid
visibility reductions in bursts of heavy snow are possible.

DISCUSSION...Latest mosaic radar imagery shows a well-organized snow
squall moving east-southeastward at around 30-40 kt across parts of
central NY. This band is generally focused along the leading edge of
a southeastward-advancing arctic cold front, which is expected to
continue overspreading parts of the Northeast during the next few
hours. Regional VWP data depicts 50 kt of west-southwesterly flow in
the lowest 3 km, which combined with strong/focused forcing for
ascent and pockets of conditionally unstable boundary-layer
conditions preceding the snow squall, should support its maintenance
with eastward extent. The primary limiting factor continues to be
somewhat dry low-level conditions, though it appears that the
aforementioned factors are generally compensating for this.
Therefore, the potential for rapid visibility reductions in bursts
of heavy snow should continue spreading east-southeastward across
the Northeast during the next few hours before a gradual decrease in

..Weinman.. 02/03/2023

...Please see for graphic product...


LAT...LON   40907812 41077889 41447959 41837965 42877646 43357540
            44127417 45067300 45127224 45187108 44417100 43857138
            42817255 41807486 41177670 40907812 is the U.S. government's official web portal to all federal, state and local government web resources and services.