781
ACUS03 KWNS 131920
SWODY3
SPC AC 131919
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0119 PM CST SAT DEC 13 2025
VALID 151200Z - 161200Z
..NO SEVERE THUNDERSTORM AREAS FORECAST
..SUMMARY
THUNDERSTORMS ARE NOT EXPECTED ON MONDAY.
..SYNOPSIS
UPPER RIDGING WILL BUILD OVER MUCH OF THE CENTRAL AND EASTERN CONUS
AS A MID-LEVEL TROUGH DE-AMPLIFIES OVER THE PACIFIC NORTHWEST ON
MONDAY. SURFACE HIGH PRESSURE WILL SWEEP ACROSS MUCH OF THE SOUTHERN
AND EASTERN CONUS WITH A STATICALLY STABLE AIRMASS, WHILE A COLD
AND/OR DRY SURFACE AIRMASS ENCOMPASSES MUCH OF THE PLAINS INTO THE
INTERIOR WEST. AS A RESULT, THUNDERSTORM DEVELOPMENT SHOULD BE
NEGLIGIBLE OVER MOST OF THE CONUS. THE ONE EXCEPTION MAY BE OVER
PORTIONS OF THE PACIFIC NORTHWEST COASTLINE. HERE, THE DE-AMPLIFYING
RIDGE WILL AID IN THE ADVECTION OF COLDER TEMPERATURES ATOP A MARINE
BOUNDARY LAYER. GIVEN AT LEAST MODEST FORCING FOR ASCENT AND SCANT
BUOYANCY, A FEW LIGHTNING FLASHES MAY OCCUR.
..SQUITIERI.. 12/13/2025
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