423
ACUS03 KWNS 291904
SWODY3
SPC AC 291903
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0103 PM CST SUN DEC 29 2024
VALID 311200Z - 011200Z
..NO THUNDERSTORM AREAS FORECAST
..SUMMARY
THUNDERSTORMS ARE NOT EXPECTED TUESDAY.
..SYNOPSIS
AN UPPER SHORTWAVE TROUGH WILL PIVOT EAST/NORTHEAST ACROSS THE
MIDWEST TO THE NORTHEAST ON TUESDAY. A SURFACE LOW WILL TRACK IN
TANDEM WITH THE UPPER TROUGH/LOW, WITH AN ATTENDANT COLD FRONT
SWEEPING EAST ACROSS THE MS/OH VALLEYS THROUGH EVENING. A DEARTH OF
BOUNDARY-LAYER MOISTURE WILL PRECLUDE MUCH INSTABILITY, EXCEPT FOR
SOME MODEST DEWPOINTS (MAINLY 40S TO LOW 50S F) ACROSS THE
MID-ATLANTIC AND CAROLINA COASTS. AS ASCENT INCREASES WITH THE
APPROACH OF THE SURFACE COLD FRONT AND UPPER TROUGH DURING THE
EVENING, A COUPLE OF LIGHTNING FLASHES WILL BE POSSIBLE FROM THE
UPPER OH VALLEY TO THE DELMARVA AND COASTAL NC GIVEN VERY WEAK
MUCAPE (LESS THAN 150 J/KG). OVERALL, THUNDERSTORM POTENTIAL IS
EXPECTED TO REMAIN VERY LOW, PRECLUDING A GENERAL THUNDERSTORM
DELINEATION.
..LEITMAN.. 12/29/2024
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