949
ACUS03 KWNS 031926
SWODY3
SPC AC 031925
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0125 PM CST MON NOV 03 2025
VALID 051200Z - 061200Z
..NO SEVERE THUNDERSTORM AREAS FORECAST
..SUMMARY
THUNDERSTORMS WILL BE POSSIBLE ACROSS PARTS OF THE PACIFIC NORTHWEST
ON WEDNESDAY. ORGANIZED SEVERE THUNDERSTORMS CURRENTLY APPEAR
UNLIKELY.
..SYNOPSIS AND DISCUSSION
A LARGE-SCALE UPPER TROUGH WILL ADVANCE INLAND ACROSS THE PACIFIC
NORTHWEST ON WEDNESDAY. COOL MID-LEVEL TEMPERATURES AND STRONG
LARGE-SCALE ASCENT ASSOCIATED WITH THE UPPER TROUGH MAY SUPPORT
SUFFICIENT BUT WEAK INSTABILITY AND THE MAINTENANCE OF A LOW-TOPPED
BAND OF THUNDERSTORMS. THIS ACTIVITY SHOULD BE ONGOING ALONG/NEAR
THE COAST OF WA/OR/NORTHERN CA AT THE START OF THE PERIOD EARLY
WEDNESDAY MORNING. STRONG FLOW/SHEAR IS FORECAST AT LOW/MID LEVELS,
WHICH WOULD CONDITIONALLY SUPPORT ORGANIZED CONVECTION. HOWEVER,
SURFACE-BASED INSTABILITY IS CURRENTLY FORECAST TO REMAIN VERY WEAK,
WHICH MAY TEND TO LIMIT THE OVERALL SEVERE THREAT ALONG/NEAR THE
COAST. HAVE THEREFORE REFRAINED FROM INCLUDING LOW SEVERE
PROBABILITIES AT THIS TIME. THE POTENTIAL FOR ISOLATED THUNDERSTORMS
MAY CONTINUE INLAND FOR PORTIONS OF THE HIGHER TERRAIN OF WA/OR AND
NORTHERN CA THROUGH THE PERIOD AS THE UPPER TROUGH CONTINUES
EASTWARD.
..GLEASON.. 11/03/2025
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