ACUS11 KWNS 171455
SWOMCD
SPC MCD 171455=20
MAZ000-NHZ000-CTZ000-VTZ000-NYZ000-NJZ000-PAZ000-171800-

Mesoscale Discussion 0023
NWS Storm Prediction Center Norman OK
0855 AM CST Sat Jan 17 2026

Areas affected...northern NJ into southwest New England

Concerning...Heavy snow=20

Valid 171455Z - 171800Z

SUMMARY...Transient heavy snow is expected to shift northeastward in
the Northeast to southwest New England through early afternoon.
Rates should briefly reach 1 inch per hour before waning.

DISCUSSION...A confined band of moderate to heavy snow with several
half to quarter-mile visibilities ongoing across mainly southeast
PA, north-northwest of the Philadelphia Metro Area, in association
with a shortwave impulse progressing northeastward across the
Northeast. 12Z observed and forecast soundings indicate the
dendritic growth zone is centered between 575-650 mb. Ascent within
and below this level appears likely to peak through about 18Z, which
should favor snowfall rates around 1 in/hr. This should be transient
at any one location as the burst of heavy snow shifts northeastward
followed by drying in the dendritic growth layer.

..Grams.. 01/17/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!44T7npvtUq5MVG6B6SgErPKIPPhUOiJjqzsew3040ulW5rQy8ypReFj8nlE8XJ-47vDqrfTUc= xCKf_lGyAqF7KTbX4Y$ for graphic product...

ATTN...WFO...GYX...BOX...OKX...ALY...PHI...BGM...

LAT...LON 40787433 40517507 40807529 41777433 42797315 43027244
42917200 42527218 42057256 41367348 40787433=20


=3D =3D =3D
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