ACUS11 KWNS 262342
SWOMCD
SPC MCD 262341=20
RIZ000-CTZ000-NYZ000-MAZ000-NJZ000-PAZ000-270545-

Mesoscale Discussion 2276
NWS Storm Prediction Center Norman OK
0541 PM CST Fri Dec 26 2025

Areas affected...Upstate NY to eastern Long Island...including parts
of southern New England

Concerning...Heavy snow=20

Valid 262341Z - 270545Z

SUMMARY...Heavy snow bands will spread/develop southeast across
upstate NY toward southern New England over the next few hours. Snow
rates of 1-1.5"/hr are expected.

DISCUSSION...Low-amplitude short-wave trough is progressing
southeast across western NY/PA early this evening. Latest
water-vapor imagery depicts a notable midlevel vort max southwest of
Syracuse, and this is reflected well in radar data. Multiple heavy
snow bands have developed ahead of this vort max, strongly
influenced by low-level warm advection, extending across upstate NY
into the lower Hudson Valley. Boundary layer moistening supports
this with dew points now rising into the mid teens (F) where snow
rates are increasing. Over the next few hours snow rates are
expected to increase downstream across western CT and Long Island,
largely in response to this well-defined short wave digging toward
the northern Middle Atlantic. Snow rates of 1-1.5"/hr can be
expected prior to the short wave passage.

..Darrow.. 12/26/2025

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!72AfxS177IoDFXKXwWr4rZtkA9u27l-KZQk9-HDEny1KWLJLb-9pRWfvFyEJIy8ZnVrWZysoN= W9G6FtRExBqAyzlwT0$ for graphic product...

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

LAT...LON 40917449 41497505 42417571 42857574 43277537 43347441
43037362 41847235 41217180 40677192 40367243 40347311
40527380 40917449=20


=3D =3D =3D
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