Storm Prediction Center Mesoscale Discussion 118

   Mesoscale Discussion 0118
   NWS Storm Prediction Center Norman OK
   1208 PM CST Wed Feb 19 2025

   Areas affected...Portions of northern/northeast North Carolina into
   southeast Virginia

   Concerning...Heavy snow 

   Valid 191808Z - 192315Z

   SUMMARY...Snowfall rates around 1 in. per hour are possible within a
   snow band in parts of northeast North Carolina and southeast
   Virginia. Immediate coastal areas could see slightly higher rates.

   DISCUSSION...As mid-level ascent continues to increase across the
   Mid-Atlantic this afternoon, a coastal trough is expected to deepen
   offshore. By the evening, a deeper surface low should be present off
   the coast from the Carolinas. This process should promote
   low/mid-level frontogenesis across parts of the region. This already
   appears to be occurring in northern/northeast North Carolina into
   southeast Virginia. Wakefield, VA ASOS has reported heavy snow
   within the last 30-45 minutes. This band should continue to
   translate northeastward through the afternoon into the evening.
   Moderate to heavy snowfall is probable within this band with overall
   rates near 1 in. per hour anticipated. Some areas near the immediate
   coast may see slightly higher rates or at least longer duration snow
   as the frontogenetic lift should be maximized in these areas.
   Snowfall intensity will eventually decrease by late evening into
   Thursday morning. With southern extent, towards central North
   Carolina, more of a mix of wintry precipitation is possible along
   the edge of the snow band as there will be greater influence from
   the low/mid-level warm nose.

   ..Wendt.. 02/19/2025

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

   ATTN...WFO...AKQ...MHX...RAH...RNK...

   LAT...LON   35927883 35887899 35857930 35957960 36087975 36247965
               36497933 37137790 37447667 37427611 37347581 37037561
               36597552 36257570 36077666 36027741 35957839 35927883