SPC MD 286

SPC MD 286

MD 0286 CONCERNING WINTER MIXED PRECIPITATION FOR PARTS OF NY INTO NEW ENGLAND

Mesoscale Discussion 0286
NWS Storm Prediction Center Norman OK
0227 AM CDT Sat Mar 23 2024

Areas affected…Parts of NY into New England

Concerning…Winter mixed precipitation

Valid 230727Z – 231130Z

SUMMARY…A mix of heavy snow, sleet, and freezing rain will
continue to spread east-northeast from parts of southern/eastern New
York into New England through sunrise. Heavy snow rates of 1-1.5
in/hr will be most probable in a band along the northern periphery
of the mixed transition zone.

DISCUSSION…An extensive swath of mixed winter precip is ongoing
across southern to eastern NY into parts of southern VT/NH. This has
been aided by strong low-level warm theta-e advection amid a 50-60
kt low-level jet per ENX/BGM VWP data. Low-level warming has again
been faster up the Hudson Valley than indicated by evening model
guidance with prior 1″/hr snowfall rates at ALB transitioning to
mixed freezing rain/sleet during the past hour. Based on recent
radar trends, this mixed phase should be the dominant precip type as
it gradually expands east-northeast into parts of MA and southern
VT/NH in the next few hours. Precipitation rates from 0.04-0.12
in/hr should be expected based on upstream measurements/guidance.
Heavier snowfall rates should still occur just to the
north-northeast of the transition zone, with rates of 1-1.5 in/hr
becoming increasingly probable across parts of northern VT/NH into a
part of southwest ME through sunrise.

..Grams.. 03/23/2024

…Please see www.spc.noaa.gov for graphic product…

ATTN…WFO…GYX…BOX…BTV…ALY…BGM…

LAT…LON 43177514 44237427 44687330 44847126 44877067 44687024
44487007 44227007 43847030 43227079 42497163 42167269
41957319 41907382 41937419 42737528 43177514

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