314
ACUS02 KWNS 131712
SWODY2
SPC AC 131711
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1111 AM CST SAT DEC 13 2025
VALID 141200Z - 151200Z
..NO SEVERE THUNDERSTORM AREAS FORECAST
..SUMMARY
A FEW STORMS ARE POSSIBLE ACROSS SOUTH FLORIDA AND THE FLORIDA KEYS,
AS WELL AS THE WESTERN GULF COAST TOMORROW (SUNDAY).
..SYNOPSIS
A PRONOUNCED MID-LEVEL TROUGH WILL EJECT INTO THE ATLANTIC AS
ANOTHER UPPER TROUGH APPROACHES THE PACIFIC NORTHWEST TOMORROW
(SUNDAY). SURFACE HIGH PRESSURE AND AN ASSOCIATED STATICALLY STABLE
AIRMASS WILL OVERSPREAD MUCH OF THE CONUS EAST OF THE ROCKIES,
LIMITING THUNDERSTORM DEVELOPMENT OVER MOST LOCALES. THE BEST CHANCE
FOR ANY ISOLATED THUNDERSTORM DEVELOPMENT WILL BE ALONG A SURFACE
COLD FRONT. AT THE START OF THE PERIOD (12Z SUNDAY), A FEW
THUNDERSTORMS MAY DEVELOP ALONG THE COLD FRONT ACROSS THE WESTERN
GULF COAST AS THE FRONT ENCOUNTERS LOW-LEVEL MOISTURE AND MOVES
OFFSHORE. LATER IN THE DAY, THE COLD FRONT WILL ENCOUNTER A
LOW-LEVEL MOISTURE-DRIVEN, MARGINALLY UNSTABLE AIRMASS ACROSS THE
SOUTHERN FL PENINSULA/FL KEYS, WHERE ISOLATED THUNDERSTORMS WILL
ALSO BE POSSIBLE.
ACROSS THE PACIFIC NORTHWEST, COOLER TEMPERATURES ALOFT (AND
ACCOMPANYING SCANT BUOYANCY) WILL IMPINGE ON THE SHORELINE TOWARD
THE END OF THE PERIOD (06-12Z MONDAY MORNING). WHILE A COUPLE OF
LIGHTNING FLASHES MAY OCCUR DURING THIS TIME FRAME, THE CURRENT
THINKING IS THAT THE OVERALL COVERAGE OF LIGHTNING WILL LIKELY BE
TOO SPARSE TO WARRANT THUNDER PROBABILITIES AT THIS TIME.
..SQUITIERI.. 12/13/2025
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