ZCZC SPCSWOMCD ALL
ACUS11 KWNS 051446 
SPC MCD 051446 
MEZ000-NHZ000-MAZ000-051845-

Mesoscale Discussion 0033
NWS Storm Prediction Center Norman OK
0846 AM CST Wed Jan 05 2022

Areas affected...portions of western Maine...New Hampshire...central
Massachusetts

Concerning...Freezing rain 

Valid 051446Z - 051845Z

SUMMARY...Freezing rain remains likely in a very narrow corridor
across northern portions of New England for at least a few more
hours. .06 inch/3 hour accumulation rates may occur where heavier
showers overlap below-freezing surface conditions.

DISCUSSION...Low-level warm-air advection is underway across
portions of New England within a broad confluence zone ahead of a
996 mb surface low which continues to gradually deepen across the
Great Lakes. Despite the low-level warm-air advection, surface
temperatures remain below freezing across several locales, allowing
for some ice accumulations to occur (as has been observed over the
past few hours from eastern NY to southern NH). Some of the latest
guidance trends suggest that temperatures should remain at or below
freezing for portions of easter NH, western ME into central MA for
at least a few more hours, with additional ice accumulations
possible. While heavier rain rates are expected along the Atlantic
Coastline (where surface temperatures are above freezing) a very
narrow corridor exists where brief periods of .06 inch/3 hour rain
rates may overlap a frozen surface.

..Squitieri.. 01/05/2022

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

ATTN...WFO...CAR...GYX...BOX...

LAT...LON   42787155 42557186 42547202 42577211 42817230 43007217
            44617108 45647060 45617004 45466961 45146942 44746954
            44406990 43787038 43277103 42787155 

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