

909 

WWUS20 KWNS 131936

SEL9

SPC WW 131936

IAZ000-ILZ000-MOZ000-140200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 379

NWS STORM PREDICTION CENTER NORMAN OK

240 PM CDT WED JUL 13 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EXTREME SOUTHEAST IOWA

  MUCH OF ILLINOIS

  A SMALL PART OF SOUTHEAST MISSOURI



* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 240 PM

  UNTIL 900 PM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



SUMMARY...ONGOING SQUALL LINE IN MISSOURI WILL CONTINUE TO MOVE

EASTWARD INTO ILLINOIS THROUGH THE AFTERNOON...AS WILL A SEPARATE

THUNDERSTORM CLUSTER FROM SOUTHEAST IOWA INTO NORTHWEST ILLINOIS.

DAMAGING WINDS WILL REMAIN A THREAT WITH THE STRONGER EMBEDDED

STORMS/BOWING SEGMENTS...WHILE ISOLATED LARGE HAIL WILL ALSO BE

POSSIBLE.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHWEST OF

MARSEILLES ILLINOIS TO 20 MILES WEST SOUTHWEST OF CARBONDALE

ILLINOIS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 378...



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 27035.





...THOMPSON

