209
ACUS01 KWNS 201554
SWODY1
SPC AC 201553
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0953 AM CST SAT DEC 20 2025
VALID 201630Z - 211200Z
..NO SEVERE THUNDERSTORM AREAS FORECAST
..SUMMARY
A FEW LIGHTNING FLASHES MAY OCCUR TODAY NEAR COASTAL WASHINGTON, AND
TONIGHT OVER SOUTHERN LOUISIANA.
DRY AND STABLE CONDITIONS WILL PREVAIL OVER MOST OF THE CONUS TODAY,
PRECLUDING THUNDERSTORMS. ONE EXCEPTION WILL BE OVER WESTERN WA
WEST OF THE CASCADES, WHERE FAST ONSHORE FLOW, OROGRAPHIC LIFT, AND
100-200 J/KG OF CAPE WILL BE PRESENT. THE OTHER AREA OF SOME RISK
OF LIGHTNING WILL BE OVER SOUTHERN LA TONIGHT IN A WEAK LOW-LEVEL
WARM ADVECTION REGIME. IN BOTH AREAS, THUNDERSTORM COVERAGE IS
ANTICIPATED TO BE SPARSE AND SEVERE RISK NEGLIGIBLE.
..HART/KARSTENS.. 12/20/2025
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