870
WWUS20 KWNS 271837
SEL1
SPC WW 271837
ILZ000-INZ000-280100-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 521
NWS STORM PREDICTION CENTER NORMAN OK
240 PM EDT MON JUL 27 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EAST CENTRAL ILLINOIS
CENTRAL INDIANA
* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 240 PM UNTIL
900 PM EDT.
* PRIMARY THREATS INCLUDE...
WIDESPREAD DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 80
MPH LIKELY
ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
A TORNADO OR TWO POSSIBLE
SUMMARY...AN INTENSIFYING CLUSTER OF THUNDERSTORMS OVER NORTHWEST
INDIANA WILL TRACK SOUTHWARD THIS AFTERNOON THROUGH A VERY MOIST AND
UNSTABLE AIR MASS. SEVERE WIND GUSTS ARE EXPECTED ALONG THE LEADING
EDGE OF THE STORMS, ALONG WITH SOME RISK OF LARGE HAIL AND A TORNADO
OR TWO.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH NORTHEAST
OF LAFAYETTE IN TO 35 MILES SOUTH OF BLOOMINGTON IN. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU1).
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 519...WW 520...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR
31035.
...HART
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page