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Mesoscale Discussion 75
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   Mesoscale Discussion 0075
   NWS Storm Prediction Center Norman OK
   0742 AM CST Sun Jan 16 2022

   Areas affected...Northern South Carolina...North Carolina...Southern
   and Central Virginia

   Concerning...Winter mixed precipitation 

   Valid 161342Z - 161945Z

   SUMMARY...Heavy snowfall with rates exceeding one inch per hour will
   be possible across the southern Appalachians and Virginia Piedmont
   this morning from western North Carolina into southern and central
   Virginia. Freezing rain or a changeover to freezing rain is expected
   from parts of northern South Carolina northeastward into
   southeastern Virginia.

   DISCUSSION...Water vapor imagery shows an upper-level low moving
   eastward across the central Gulf Coast states with divergent
   mid-level flow located across southern sections of the Eastern
   Seaboard. A plume of mid-level moisture is located across the
   Carolinas and Virginia, where widespread precipitation is ongoing.
   Temperatures are currently below freezing across much of the
   southern Appalachian Mountains, where snow is being reported. A few
   locations have exceeded one inch per hour snowfall rates. As
   large-scale ascent spreads northeastward ahead of the upper-level
   low, the potential for heavy snow should increase across parts of
   western and central Virginia.

   Further to the east, temperatures are also below freezing across
   much of the North Carolina Piedmont. In this area, freezing rain is
   being reported in many locations due to a low-level warm layer that
   is forecast to spread northward into southeastern Virginia later
   this morning. In response, freezing rain should continue across
   parts of central North Carolina. Snow should gradually change over
   to freezing rain across much of southeastern Virginia this morning.

   ..Broyles/Edwards.. 01/16/2022

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

   ATTN...WFO...MFL...TBW...

   LAT...LON   26608178 27028195 27088205 27118226 27028246 26808250
               26378238 25848179 25658156 25458136 25118126 24958110
               24898098 25048068 25378075 25668088 25978114 26608178 

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Page last modified: January 16, 2022
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