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Wintry December 4-7 Winter Precip Chance

I think it certainly helped that temps cooled a bit as the core of the upper trough approached

i noticed around 11a-12lunchtime that temps were about 3-6 colder than the models were initializing RDU and to the NNW. Further, some data from flights in and out of RDU had freezing temps just off the ground.
 
Special Weather Statement
National Weather Service Charleston SC
159 PM EST Mon Dec 7 2020

SCZ043>045-049-050-052-080215-
Inland Colleton-Dorchester-Inland Berkeley-Coastal Colleton-
Charleston-Tidal Berkeley-
159 PM EST Mon Dec 7 2020

...ISOLATED GRAUPEL POSSIBLE A FEW SHOWERS ACROSS THE CHARLESTON
QUAD COUNTY AREA THIS EVENING...

Scattered to numerous showers will impact Berkeley, Dorchester,
Charleston and Colleton County this evening, most especially
between 6 and 9 pm. A couple of these showers might briefly
produce graupel as they move east and southeast through the area.

Graupel is ice or snow pellets that form when waters drops
collect and then freeze on falling snowflakes, forming very small
balls of ice.

Graupel is soft and will easily break apart with an appearance
like Styrofoam balls. Unlike hail, it does not cause any damage.
Special weather statement for graupel in greater Charleston area. Had a hail report associated with this line that I’m guessing was actually graupel
 
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