014
ACUS11 KWNS 220201
SWOMCD
SPC MCD 220201
NCZ000-SCZ000-GAZ000-220700-
MESOSCALE DISCUSSION 0053
NWS STORM PREDICTION CENTER NORMAN OK
0801 PM CST TUE JAN 21 2025
AREAS AFFECTED...CENTRAL AND EASTERN PORTIONS OF THE CAROLINAS
CONCERNING...HEAVY SNOW
VALID 220201Z - 220700Z
SUMMARY...MODERATE TO HEAVY SNOW SHOULD GRADUALLY BECOME WIDESPREAD
THROUGH EARLY TONIGHT ACROSS PORTIONS OF THE CENTRAL AND EASTERN
CAROLINAS.
DISCUSSION...700 MB WARM-AIR AND MOISTURE ADVECTION ARE INCREASING
OVER CENTRAL AND EASTERN PARTS OF THE CAROLINAS WITH THE APPROACH OF
A PRONOUNCED 500 MB TROUGH THAT IS TRAVERSING THE CENTRAL
APPALACHIANS. BENEATH THE 700 MB MOISTENING, STRONG SURFACE-850 MB
COLD-AIR ADVECTION IS CONTRIBUTING TO FURTHER SATURATION AND
SENSIBLE COOLING OF THE COLUMN TO SUPPORT A PREDOMINANCE OF SNOW,
WHICH IS CURRENTLY BEING INDICATED BY SURFACE OBSERVATIONS ON A
WIDESPREAD BASIS. AHEAD OF THE UPPER TROUGH, 700 MB FRONTOGENESIS IS
INTENSIFYING, WHICH SHOULD SUPPORT INCREASED SNOWFALL RATES. AS
SUCH, IN ADDITION TO THE TRANSITION TO SNOW, 0.5-1.0 INCH/HOUR
SNOWFALL RATES MAY DEVELOP OVER THE NEXT COUPLE OF HOURS, AS ALSO
SUGGESTED BY SOME OF THE LATEST HIGH-RESOLUTION GUIDANCE RUNS.
..SQUITIERI.. 01/22/2025
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...AKQ...MHX...RAH...ILM...CHS...CAE...GSP...
LAT...LON 31968072 32388112 33088159 33798169 34438124 35427983
35787825 36017695 36227604 35877554 35337562 34927650
34557721 34057805 33607881 32857959 32288042 31968072
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