382
ACUS02 KWNS 090506
SWODY2
SPC AC 090504
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1104 PM CST MON DEC 08 2025
VALID 101200Z - 111200Z
..NO THUNDERSTORM AREAS FORECAST
..SUMMARY
THE RISK FOR THUNDERSTORMS APPEARS NEGLIGIBLE ACROSS THE U.S.
WEDNESDAY THROUGH WEDNESDAY NIGHT.
..DISCUSSION
MODELS CONTINUE TO INDICATE THAT ANOTHER MID-LEVEL HIGH WILL BEGIN
TO BUILD NEAR THE ALEUTIANS DURING THIS PERIOD, BUT LITTLE CHANGE IS
FORECAST TO THE GENERAL DOWNSTREAM FLOW, INLAND ACROSS THE PACIFIC
COAST INTO PORTIONS OF THE CANADIAN PRAIRIES AND U.S. GREAT PLAINS,
THROUGH AT LEAST WEDNESDAY NIGHT. FARTHER DOWNSTREAM, IT STILL
APPEARS THAT LARGE-SCALE MID/UPPER TROUGHING WILL BE REINFORCED
ACROSS AND EAST OF THE MISSISSIPPI VALLEY BY AT LEAST A FEW DIGGING
SHORT WAVE PERTURBATIONS. THERE REMAINS NOTABLE SPREAD CONCERNING
THE SMALLER-SCALE DEVELOPMENTS, INCLUDING AT LEAST ONE COMPACT, BUT
VIGOROUS, PERTURBATION DIGGING TOWARD THE GREAT LAKES REGION, AFTER
EMERGING FROM THE SOUTHERN HUDSON BAY VICINITY, AND A COUPLE OF
OTHERS OF NORTHERN MID-LATITUDE PACIFIC ORIGIN PROGRESSING THROUGH
THE FLOW TO ITS SOUTH THROUGH SOUTHEAST. REGARDLESS, RELATED
SURFACE DEVELOPMENTS ARE NOT LIKELY TO PROMOTE A SOUTHERLY RETURN
FLOW OFF THE GULF BASIN, WHERE BOUNDARY-LAYER MODIFICATION IN THE
WAKE OF THE PRIOR FRONT WILL ONLY BE GRADUALLY UNDERWAY. STABLE
CONDITIONS WILL GENERALLY PREVAIL ACROSS THE U.S., WITH NEGLIGIBLE
RISK FOR THUNDERSTORM ACTIVITY.
..KERR.. 12/09/2025
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