ACUS11 KWNS 110807
SWOMCD
SPC MCD 110806=20
MEZ000-NHZ000-VTZ000-NYZ000-111400-
Mesoscale Discussion 2330
NWS Storm Prediction Center Norman OK
0206 AM CST Mon Dec 11 2023
Areas affected...Portions of New York into northern New England
Concerning...Heavy snow=20
Valid 110806Z - 111400Z
SUMMARY...Moderate to heavy snow, with rates up to around 0.75 to 1
inch per hour, should persist across parts of New York into New
England this morning.
DISCUSSION...A pronounced upper trough will continue to progress east-northeastward across the Mid-Atlantic and Northeast this
morning. A surface low near southern New England will consolidate
and deepen further over the next several hours as it develops
northward into ME. A cold front has cleared most of the Mid-Atlantic
Coast early this morning, with low-level cold advection occurring in
its wake across parts of NY and New England. Low-level thermal
profiles behind the cold front are marginal to support snow, with
many surface observations reporting temperatures in the low to mid
30s. Still, pronounced ascent preceding the upper trough and strong
low-level frontogenetic forcing are supporting a swath of
precipitation extending from the eastern Mid-Atlantic into New
England. Cooling thermal profiles aloft are aiding a transition from
rain to snow behind the cold front, especially at higher elevations.
A band of moderate to heavy snow, with snowfall rates up to around
0.75 to 1 inch per hour, should extend from parts of eastern NY into
VT, northern NH, and western/northern ME for several hours this
morning. This band is expected to shift gradually east-northeastward
in tandem with the upper trough progression for the next several
hours.
..Gleason.. 12/11/2023
...Please see
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_zLO9C2ld4k1DWiD6jN45AiegFH6fymVq83cuJD3rKl2U8jTxvXLOQ-c8vp5PN0zipY46klw9= 5okKwxeNWpBXNwApdY$ for graphic product...
ATTN...WFO...CAR...GYX...BTV...ALY...BGM...
LAT...LON 42497528 43307502 44767417 45057336 45067167 45367132
45417089 46757005 47466930 47446901 47186886 46566917
45606995 44577108 43937215 43347278 43287363 42727405
42037411 41947489 42497528=20
=3D =3D =3D
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