427
WWUS20 KWNS 020037
SEL5
SPC WW 020037
IAZ000-MNZ000-NEZ000-SDZ000-020700-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 435
NWS STORM PREDICTION CENTER NORMAN OK
735 PM CDT WED JUL 1 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHWEST IOWA
EXTREME SOUTHWEST MINNESOTA
CENTRAL INTO NORTHEAST NEBRASKA
EXTREME SOUTHEAST SOUTH DAKOTA
* EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 735 PM
UNTIL 200 AM CDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
MPH POSSIBLE
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
A TORNADO OR TWO POSSIBLE
SUMMARY...THUNDERSTORM DEVELOPMENT IS EXPECTED LATE THIS EVENING
FROM SOUTH CENTRAL/CENTRAL NEBRASKA INTO NORTHWEST IOWA. THE
ENVIRONMENT FAVORS SUPERCELLS INITIALLY WITH ISOLATED VERY LARGE
HAIL UP TO 2 INCHES IN DIAMETER. STORMS ARE ALSO EXPECTED TO GROW
INTO A CLUSTER OR TWO, ESPECIALLY IN NEBRASKA, WITH AN INCREASE IN
THE THREAT FOR SEVERE OUTFLOW GUSTS OF 60-75 MPH THROUGH EARLY
TONIGHT. AN ISOLATED TORNADO OR TWO COULD OCCUR WITH FAVORABLE
STORM INTERACTIONS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTH
SOUTHWEST OF BROKEN BOW NE TO 15 MILES EAST NORTHEAST OF SPENCER IA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU5).
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 430...WW 431...WW
432...WW 433...WW 434...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM MOTION VECTOR
25020.
...THOMPSON
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