SPC MD 32



MD 0032 CONCERNING HEAVY SNOW FOR NORTHERN OHIO…MUCH OF PENNSYLVANIA…NORTHERN MARYLAND…FAR NORTHEASTERN WEST VIRGINIA…FAR SOUTHWESTERN NEW YORK

MD 0032 Image

Mesoscale Discussion 0032
NWS Storm Prediction Center Norman OK
0524 PM CST Sat Jan 19 2019

Areas affected...northern Ohio... much of Pennsylvania... northern
Maryland... far northeastern West Virginia... far southwestern New
York

Concerning...Heavy snow 

Valid 192324Z - 200230Z

SUMMARY...Moderate to heavy snowbands continue to overspread the
region, with widespread 1-2 inch per hour snowfall rates likely.

DISCUSSION...Regional radar shows moderate to heavy snowbands
continuing over portions of northern Ohio, and developing/spreading
into portions of Pennsylvania and northern Maryland. Locations where
these snowbands have setup are currently experiencing snowfall rates
of 1-2 inches per hour. 

These observational trends are expected to continue for the next few
hours. Strong mid-level frontogenetical forcing is resulting in
broad vertical ascent over the region. RAP soundings indicate
moderate vertical motion through the dendritic growth zone, helping
to enhance snowfall rates. With time, areas of northern Maryland and
southern Pennsylvania should transition to rain, but could
experience some brief freezing rain as warm air advection aloft
outpaces warming at the surface.

..Karstens.. 01/19/2019

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

ATTN...WFO...PHI...BGM...BUF...CTP...LWX...PBZ...CLE...ILN...
IWX...IND...

LAT...LON   40978436 40578483 40108488 39838435 40078327 40818102
            40987990 40897958 40557928 40127918 39487923 39357854
            39467742 39747625 40077607 40777598 41847592 42287695
            42287881 41968038 41768136 41638207 41448289 41228374
            40978436 

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