342
ACUS01 KWNS 092036
SWODY1
SPC AC 092034
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0234 PM CST TUE DEC 09 2025
VALID 092000Z - 101200Z
..NO THUNDERSTORM AREAS FORECAST
..SUMMARY
THUNDERSTORMS ARE NOT FORECAST THROUGH TONIGHT.
NO CHANGES.
..HART.. 12/09/2025
PREV DISCUSSION
/ISSUED 1014 AM CST TUE DEC 09 2025/
..SYNOPSIS AND DISCUSSION
UPPER PATTERN WILL REMAIN ACTIVE TODAY/TONIGHT AS A LOW-AMPLITUDE
SHORTWAVE TROUGH PROGRESSES QUICKLY EASTWARD THROUGH THE OH VALLEY
AHEAD OF A MORE SUBSTANTIAL SHORTWAVE TROUGH MOVING SOUTHEASTWARD
OUT OF THE CANADIAN PRAIRIES AND THROUGH THE NORTHERN PLAINS AND
UPPER MIDWEST. BY 12Z WEDNESDAY, THIS SECOND SHORTWAVE WILL LIKELY
EXTEND FROM THE LAKE MICHIGAN VICINITY SOUTHWESTWARD INTO NORTHEAST
KS/NORTHWEST MO.
PROGRESSION OF THIS SECOND SHORTWAVE WILL REINFORCE THE ALREADY DRY
AND STABLE AIRMASS IN PLACE ACROSS MUCH OF CONUS, PRECLUDING
THUNDERSTORMS. SOME MODEST MOISTURE RETURN IS ANTICIPATED LATE
TONIGHT/EARLY TOMORROW ACROSS THE WESTERN GULF, BUT MUCH OF THIS
MOISTURE WILL REMAIN OFFSHORE. SOME LOW-LEVEL MOISTURE ALSO REMAINS
IN PLACE ACROSS SOUTH FL, EVEN IN THE WAKE OF THE COLD FRONT NOW
SETTLED ACROSS THE FLORIDA STRAITS. EVEN WITH THIS LOW-LEVEL
MOISTURE STILL IN PLACE, MODEST AND SHALLOW BUOYANCY, AND LIMITED
FORCING FOR ASCENT SHOULD PRECLUDE THUNDERSTORMS ACROSS SOUTH FL
TODAY.
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