679
ACUS02 KWNS 111728
SWODY2
SPC AC 111726
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1226 PM CDT FRI SEP 11 2026
VALID 121200Z - 131200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE CENTRAL PLAINS...AND FROM OHIO/WEST VIRGINIA INTO PARTS OF
WESTERN PENNSYLVANIA...
..SUMMARY
WIDELY SCATTERED STRONG TO SEVERE STORMS MAY DEVELOP SATURDAY
AFTERNOON AND EVENING OVER PARTS OF THE CENTRAL PLAINS. ISOLATED
ACTIVITY MAY ALSO AFFECT PARTS OF THE UPPER OHIO VALLEY INTO WESTERN
PENNSYLVANIA.
..CENTRAL PLAINS
SUBSTANTIAL FORECAST UNCERTAINTY EXISTS ON SATURDAY GIVEN THE SUBTLE
FORCING MECHANISMS AT PLAY. IN GENERAL, SPORADIC SEVERE STORMS
APPEAR WILL BE POSSIBLE AS INSTABILITY BECOMES STRONG SOUTH OF A
COLD FRONT FROM EASTERN KS INTO NORTHWEST OK WHERE TEMPERATURES WILL
BECOME HOT WITH MINIMAL CIN. EVEN NEAR/NORTH OF THE COLD FRONT (INTO
SOUTHEAST NE, SOUTHERN IA, NORTHERN MO), ELEVATED INSTABILITY MAY
FAVOR LARGE HAIL. OVERALL LAPSE RATE PROFILES WILL BE STEEP,
FAVORING BOTH HAIL AND WIND, WITH SUFFICIENT MID TO HIGH LEVEL WINDS
AND DEEP-LAYER SHEAR. LOW-LEVEL WINDS WILL REMAIN WEAK, AND MAY
FAVOR HIGHLY DEVIANT STORM/CLUSTER MOTIONS THROUGH THE EVENING.
..EASTERN OH/WV INTO WESTERN PA
A WEAK MIDLEVEL WAVE IS FORECAST TO MOVE ACROSS THE REGION, WITH
AROUND 35 KT WINDS AT 500 MB. DRY AIR WILL EXIST NORTHEAST OF THE
REGION, BUT SURFACE PRESSURES WILL DROP WITH INCREASING LOW-LEVEL
MOISTURE OUT OF THE SOUTH AND MID TO UPPER 60S F DEWPOINTS
DEVELOPING. STORMS ARE GENERALLY FORECAST TO DEVELOP OVER OH AND
NORTHEAST KY, SPREAD EAST ACROSS WV AND WESTERN PA. GIVEN THE
INCREASING WIND SPEEDS AND SOMEWHAT FAVORABLE LOW-LEVEL SHEAR, SOME
OF THE STORMS COULD EVENTUALLY PRODUCE DAMAGING GUSTS, MOST LIKELY
AS PEAK INSTABILITY IS ACHIEVED.
..JEWELL.. 09/11/2026
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