148
ACUS03 KWNS 251919
SWODY3
SPC AC 251918
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0218 PM CDT WED JUN 25 2025
VALID 271200Z - 281200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER MUCH OF THE
NORTHERN PLAINS...
..SUMMARY
SEVERE STORMS PRODUCING LARGE HAIL AND LOCALLY DAMAGING WINDS ARE
FORECAST OVER PARTS OF THE NORTHERN PLAINS LATE ON FRIDAY. SPORADIC
DAMAGING GUSTS MAY ALSO OCCUR OVER PARTS OF THE MID ATLANTIC AND
SOUTHEAST.
..SYNOPSIS
A BROAD MID-LEVEL TROUGH WILL SHIFT EAST ACROSS THE NORTHERN ROCKIES
ON FRIDAY WITH STRENGTHENING MID-LEVEL FLOW OVERSPREADING THE
NORTHERN PLAINS. THIS WILL RESULT IN LEE TROUGHING FROM THE CANADIAN
PRAIRIES TO THE CENTRAL HIGH PLAINS. A MOIST ENVIRONMENT WILL BE IN
PLACE EAST OF THIS TROUGH WITH DEWPOINTS IN THE 60S.
..NORTHERN PLAINS
MODERATE TO POTENTIALLY STRONG INSTABILITY IS FORECAST ACROSS THE
NORTHERN PLAINS ON FRIDAY WITH TEMPERATURES NEAR 80 AND DEWPOINTS IN
THE 60S. STRENGTHENING MID-LEVEL FLOW SHOULD RESULT IN AMPLE SHEAR
FOR SUPERCELLS BY FRIDAY AFTERNOON/EVENING AS ASCENT INCREASES
ACROSS THE NORTHERN PLAINS. SIGNIFICANT HAIL AND SEVERE WIND GUSTS
WILL BE THE PRIMARY THREAT FROM THIS ACTIVITY. A STRENGTHENING/MOIST
LOW-LEVEL JET MAY SUPPORT SUPERCELL MAINTENANCE THROUGH THE EVENING
AND PERHAPS INTO THE OVERNIGHT PERIOD. EVEN IF DIURNAL STORMS
DISSIPATE, ADDITIONAL OVERNIGHT ELEVATED STORMS ARE LIKELY ACROSS
PORTIONS OF EASTERN NORTH DAKOTA AND NORTHERN MINNESOTA AMID
STRENGTHENING ISENTROPIC ASCENT.
..MID ATLANTIC TO THE SOUTHEAST
MODERATE INSTABILITY IS EXPECTED TO DEVELOP ACROSS MUCH OF THE
EASTERN CONUS ON FRIDAY. INSTABILITY IS NOT EXPECTED TO BE AS STRONG
AS MID-LEVEL TEMPERATURES WILL BE WARMER AFTER DAY 1/2 CONVECTION
ACROSS THE REGION. HOWEVER, A POCKET OF RELATIVELY COOLER AIR ALOFT
WILL EXIST ACROSS THE SOUTHEAST AND INTO THE CENTRAL APPALACHIANS
AND MID-ATLANTIC WHICH WILL SUPPORT SOME THREAT FOR STRONGER STORMS
CAPABLE OF DAMAGING WIND GUSTS.
..BENTLEY.. 06/25/2025
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