MD 0073 CONCERNING WINTER MIXED PRECIPITATION FOR PARTS OF THE MID ATLANTIC INTO SOUTHERN NEW ENGLAND
Mesoscale Discussion 0073
NWS Storm Prediction Center Norman OK
0749 AM CST Tue Jan 16 2024
Areas affected…Parts of the Mid Atlantic into southern New England
Concerning…Winter mixed precipitation
Valid 161349Z – 161745Z
SUMMARY…Locally moderate winter precipitation rates will spread
northeastward this morning, with some modest ice accretion possible
where freezing rain persists.
DISCUSSION…A surface low currently off of the Mid Atlantic coast
is forecast to gradually deepen as it moves northeast toward coastal
southern New England this morning. Multiple waves of light to
locally moderate precipitation are ongoing and will continue to
spread northeastward in conjunction with the surface low. While
interior portions of the Northeast will likely continue to see snow
(with generally light to moderate rates) this morning, low-level
warm advection will support a transition from snow to sleet across
parts of southern New England, with freezing rain persisting over
portions of the Mid Atlantic region.
As the low deepens offshore, a modest uptick in precipitation
intensity will be possible through the morning. While rates will
likely remain light to locally moderate, antecedent cold conditions
(with temperatures initially in the 20s F) may result in relatively
efficient ice accretion in areas that transition to freezing rain.
Pockets of moderate sleet/snow will also be possible into parts of
southern New England. Low-level warm advection will support a
gradual transition to rain along the Mid Atlantic and southern New
England coasts, but subfreezing temperatures may persist inland
through the morning.
..Dean.. 01/16/2024
…Please see www.spc.noaa.gov for graphic product…
ATTN…WFO…GYX…BOX…OKX…ALY…PHI…LWX…
LAT…LON 39497504 38747620 38747652 39137660 39727603 41187450
42147322 42607220 42787134 42627089 42347101 41377217
40937321 40307434 39497504
