

621 

WWUS20 KWNS 101752

SEL8

SPC WW 101752

ILZ000-INZ000-OHZ000-110100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 88

NWS STORM PREDICTION CENTER NORMAN OK

155 PM EDT WED APR 10 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EAST CENTRAL ILLINOIS

       CENTRAL INDIANA

       WEST CENTRAL AND CENTRAL OHIO



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 155 PM UNTIL

900 PM EDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST

SOUTHWEST OF MATTOON ILLINOIS TO 20 MILES EAST OF MANSFIELD OHIO.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



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.



DISCUSSION...SEVERAL CLUSTERS OF THUNDERSTORMS ARE DEVELOPING ALONG

A FRONTAL ZONE FROM CENTRAL IL EWD INTO INDIANA AND OH.  A FEED OF

MODERATE INSTABILITY FROM THE SW AND DEEP WSWLY-WLY WIND PROFILES

WILL SUPPORT ORGANIZED CLUSTERS CAPABLE OF PRODUCING DAMAGING WINDS

AND LARGE HAIL THROUGH THE AFTERNOON.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 27035.





...THOMPSON



139 

WWUS20 KWNS 101752

SEL8

SPC WW 101752

ILZ000-INZ000-OHZ000-110100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 88...RESENT

NWS STORM PREDICTION CENTER NORMAN OK

155 PM EDT WED APR 10 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EAST CENTRAL ILLINOIS

       CENTRAL INDIANA

       WEST CENTRAL AND CENTRAL OHIO



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 155 PM UNTIL

900 PM EDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST

SOUTHWEST OF MATTOON ILLINOIS TO 20 MILES EAST OF MANSFIELD OHIO.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



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.



DISCUSSION...SEVERAL CLUSTERS OF THUNDERSTORMS ARE DEVELOPING ALONG

A FRONTAL ZONE FROM CENTRAL IL EWD INTO INDIANA AND OH.  A FEED OF

MODERATE INSTABILITY FROM THE SW AND DEEP WSWLY-WLY WIND PROFILES

WILL SUPPORT ORGANIZED CLUSTERS CAPABLE OF PRODUCING DAMAGING WINDS

AND LARGE HAIL THROUGH THE AFTERNOON.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 27035.





...THOMPSON

