842
ACUS11 KWNS 230055
SWOMCD
SPC MCD 230055
SDZ000-NEZ000-230300-
MESOSCALE DISCUSSION 1411
NWS STORM PREDICTION CENTER NORMAN OK
0755 PM CDT SUN JUN 22 2025
AREAS AFFECTED...NORTHERN NEBRASKA...SOUTHEAST SOUTH DAKOTA
CONCERNING...SEVERE THUNDERSTORM WATCH 452...453...
VALID 230055Z - 230300Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 452, 453
CONTINUES.
SUMMARY...SEVERE STORMS CONTINUE TO AFFECT PARTS OF NORTHERN NE AND
SOUTHEAST SD. LARGE HAIL AND DAMAGING WINDS WILL REMAIN A CONCERN
FOR A FEW MORE HOURS.
DISCUSSION...A LARGE CLUSTER OF SEVERE THUNDERSTORMS, INCLUDING
MULTIPLE SUPERCELL STRUCTURES, IS AFFECTING AREAS FROM BLAINE TO
HOLT COUNTIES NE. THE LEAD STORM JUST EAST OF O'NEILL HAS REMAIN
ANCHORED TO THE COLD FRONT AND IS THE MOST INTENSE. IT REMAINS
CAPABLE OF VERY LARGE HAIL (UP TO BASEBALL SIZE) AND DAMAGING WINDS.
THE STORMS FARTHER SOUTHWEST APPEAR TO BE SLIGHTLY ELEVATED AND
SLIGHTLY LESSENED INTENSITY.
ANOTHER AREA OF THUNDERSTORMS IS DEVELOPING FARTHER NORTH, NEAR
WINNER SD. THESE STORMS ARE STRONGLY ELEVATED, BUT IN A REGION OF
SUFFICIENT CAPE AND VERTICAL SHEAR FOR SOME CONCERN FOR HAIL IN THE
STRONGEST CELLS.
FINALLY, A LONG-LIVED SUPERCELL STORM HAS TRACKED ACROSS THE NE
PANHANDLE AND IS NOW IN SOUTHERN SHERIDAN COUNTY. THIS CELL IS
MOVING INTO A PROGRESSIVELY MORE ELEVATED UNSTABLE LAYER, BUT HAS
DEVELOPED SUFFICIENT ORGANIZATION THAT IT COULD PERSIST FOR 2-3 MORE
HOURS AND POSE A CONTINUED RISK OF HAIL ACROSS NORTH-CENTRAL NE.
..HART.. 06/23/2025
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...FSD...OAX...ABR...LBF...UNR...
LAT...LON 42770120 43689924 43829766 43359712 42569789 41409987
41450075 41750169 42170214 42770120
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN
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