393
WWUS20 KWNS 282355
SEL4
SPC WW 282355
IAZ000-MNZ000-NEZ000-290600-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 554
NWS STORM PREDICTION CENTER NORMAN OK
655 PM CDT MON JUL 28 2025
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
FAR NORTHWEST IOWA
FAR SOUTHWEST MINNESOTA
NORTHEAST NEBRASKA
* EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 655 PM
UNTIL 100 AM CDT.
* PRIMARY THREATS INCLUDE...
WIDESPREAD DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 80
MPH LIKELY
SCATTERED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE
A TORNADO OR TWO POSSIBLE
SUMMARY...THUNDERSTORMS CURRENTLY MOVING ACROSS SOUTHEAST SD AND
NORTH-CENTRAL NE ARE SHOWING SIGNS OF ORGANIZING INTO A CONVECTIVE
LINE. GIVEN THE PRESENCE OF A VERY UNSTABLE AND STRONGLY SHEARED
AIRMASS DOWNSTREAM, THIS CONVECTIVE LINE COULD BECOME INTENSE,
CAPABLE OF PRODUCING SEVERE GUSTS UP TO 80 MPH. A BRIEF
LINE-EMBEDDED TORNADO COULD OCCUR AS WELL.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH OF
WORTHINGTON MN TO 15 MILES SOUTH SOUTHEAST OF NORFOLK NE. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 551...WW 552...WW 553...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR
29035.
...MOSIER
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