287
ACUS02 KWNS 191728
SWODY2
SPC AC 191726
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1126 AM CST FRI DEC 19 2025
VALID 201200Z - 211200Z
..NO SEVERE THUNDERSTORM AREAS FORECAST
..SUMMARY
ISOLATED THUNDERSTORMS CANNOT BE RULED OUT NEAR COASTAL SECTIONS OF
WASHINGTON AND NORTHWEST OREGON SATURDAY NIGHT.
..SYNOPSIS
A BENIGN PATTERN FOR THUNDERSTORMS WILL EXIST ON SATURDAY ACROSS
MOST OF THE CONUS WITH A BROAD BELT OF WESTERLY WINDS ALOFT AND HIGH
PRESSURE OVER THE EAST. WHILE A TROUGH AMPLIFICATION WILL DEVELOP
FROM THE NORTHERN PLAINS INTO THE GREAT LAKES, ANTECEDENT DRY
SURFACE TRAJECTORIES AROUND THE SURFACE HIGH WILL MAINTAIN STABLE
CONDITIONS ACROSS THOSE AREAS.
TO THE WEST, MINIMUM WEAK THUNDERSTORM POTENTIAL MAY APPROACH
COASTAL WA INTO SUNDAY MORNING AS A LOW-AMPLITUDE WAVE APPROACHES. A
SPORADIC LIGHTNING FLASH FROM WEAK ELEVATED INSTABILITY CANNOT BE
RULED OUT AS WELL FARTHER SOUTH ACROSS WESTERN OR INTO NORTHERN CA,
BUT THE OVERALL RISK OF THUNDERSTORMS IS QUITE LOW.
..JEWELL.. 12/19/2025
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