010
ACUS03 KWNS 090625
SWODY3
SPC AC 090624
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0124 AM CDT WED SEP 09 2026
VALID 111200Z - 121200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
THE MID-MISSOURI VALLEY INTO THE UPPER MIDWEST...
..SUMMARY
SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS PORTIONS OF THE UPPER
MIDWEST LATE FRIDAY AFTERNOON INTO FRIDAY NIGHT.
..UPPER MIDWEST INTO NEBRASKA
AN UPPER SHORTWAVE TROUGH WILL MOVE ACROSS THE NORTHERN PLAINS AND
UPPER MIDWEST ON FRIDAY. THIS WILL RESULT IN ENHANCED WESTERLY FLOW
AND COOLING ALOFT ACROSS THE REGION, MAINLY AFTER 00Z. A SURFACE
COLD FRONT IS FORECAST TO DEVELOP SOUTHEAST ACROSS THE DAKOTAS
THROUGH THE AFTERNOON, AND CONTINUE EAST/SOUTHEAST ACROSS THE UPPER
MIDWEST AND PORTIONS OF THE CENTRAL PLAINS THROUGH THE NIGHTTIME
HOURS. SOUTHERLY LOW-LEVEL FLOW WILL TRANSPORT 60S DEWPOINTS
NORTHWARD ACROSS THE MO VALLEY INTO MN AHEAD OF THE FRONT. NORTHWARD
ADVECTION OF LOW-LEVEL MOISTURE BENEATH COOLING ALOFT/STEEPENING
MIDLEVEL LAPSE RATES WILL LEAD TO AT LEAST A NARROW CORRIDOR OF
MODERATE DESTABILIZATION DURING THE LATE AFTERNOON INTO EVENING FROM
CENTRAL/EASTERN NE INTO MN. STRONGER LARGE-SCALE ASCENT AND VERTICAL
SHEAR WILL BE FOCUSED ACROSS MN. WITH SOUTHWARD EXTENT, INSTABILITY
MAY BE GREATER, BUT SHEAR AND LARGE-SCALE ASCENT WILL BE WEAKER.
ADDITIONALLY, WARMER MIDLEVEL TEMPERATURES MAY PERSIST FURTHER
SOUTH, RESULTING IN CAPPING AND A MORE CONDITIONAL SEVERE RISK.
LARGE HAIL AND DAMAGING GUSTS APPEAR TO BE THE PREDOMINANT HAZARD
WITH STORMS FROM LATE FRIDAY AFTERNOON INTO THE NIGHTTIME HOURS.
..LEITMAN.. 09/09/2026
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