

446 

WWUS20 KWNS 222308

SEL6

SPC WW 222308

IAZ000-ILZ000-INZ000-LMZ000-230600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 286

NWS STORM PREDICTION CENTER NORMAN OK

610 PM CDT WED JUN 22 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  EASTERN IOWA

  NORTHERN AND CENTRAL ILLINOIS

  NORTHWESTERN INDIANA

  LAKE MICHIGAN



* EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 610 PM

  UNTIL 100 AM CDT.



* PRIMARY THREATS INCLUDE...

  A FEW TORNADOES AND A COUPLE INTENSE TORNADOES POSSIBLE

  WIDESPREAD DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS

    TO 80 MPH POSSIBLE

  ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER

    POSSIBLE



SUMMARY...GRADUALLY DEEPENING CONVECTION NOW ON EITHER SIDE OF THE

MISSISSIPPI RIVER IS EXPECTED TO EVOLVE INTO SUPERCELLS THREATENING

EVERY FORM OF SEVERE WEATHER...THEN AFTER A FEW HOURS...INTO A

COMPLEX OF STORMS WITH MOSTLY A DAMAGING-WIND RISK.  AN

ORGANIZED...DERECHO-PRODUCING SYSTEM ULTIMATELY MAY DEVELOP FROM

THIS ACTIVITY TONIGHT.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE

MILES EITHER SIDE OF A LINE FROM 15 MILES WEST OF CEDAR RAPIDS

IOWA TO 30 MILES SOUTH OF VALPARAISO INDIANA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU6).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



&&



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 29035.





...EDWARDS

