

311 

WWUS20 KWNS 071837

SEL8

SPC WW 071837

ILZ000-INZ000-KYZ000-MOZ000-080000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 28

NWS STORM PREDICTION CENTER NORMAN OK

140 PM CDT TUE APR 7 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHEAST ILLINOIS

  SOUTHWEST INDIANA

  PARTS OF WESTERN AND CENTRAL KENTUCKY

  EXREME SOUTHEAST MISSOURI



* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 140 PM UNTIL

  700 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF

EVANSVILLE INDIANA TO 60 MILES SOUTHEAST OF CARBONDALE ILLINOIS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



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...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 27. WATCH NUMBER 27 WILL NOT BE

IN EFFECT AFTER 140 PM CDT.



DISCUSSION...LOOSELY-ORGANIZED MCS WILL LIKELY CONTINUE ESEWD

THROUGH THE AFTERNOON...AS IT ENCOUNTERS A MODERATELY UNSTABLE

ENVIRONMENT INTO WRN KY.  DEEP-LAYER SHEAR REMAINS SUFFICIENT FOR

STORM ORGANIZATION...AND RECENT RADAR LOOPS SUGGEST A TENDENCY FOR A

SOMEWHAT GREATER DAMAGING WIND RISK WITH EMBEDDED ROTATING/BOWING

CELLS.



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 500. MEAN STORM

MOTION VECTOR 29030.





...THOMPSON



158 

WWUS20 KWNS 071837

SEL8

SPC WW 071837

ILZ000-INZ000-KYZ000-MOZ000-080000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 28

NWS STORM PREDICTION CENTER NORMAN OK

140 PM CDT TUE APR 7 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHEAST ILLINOIS

  SOUTHWEST INDIANA

  PARTS OF WESTERN AND CENTRAL KENTUCKY

  EXREME SOUTHEAST MISSOURI



* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 140 PM UNTIL

  700 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF

EVANSVILLE INDIANA TO 60 MILES SOUTHEAST OF CARBONDALE ILLINOIS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



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...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 27. WATCH NUMBER 27 WILL NOT BE

IN EFFECT AFTER 140 PM CDT.



DISCUSSION...LOOSELY-ORGANIZED MCS WILL LIKELY CONTINUE ESEWD

THROUGH THE AFTERNOON...AS IT ENCOUNTERS A MODERATELY UNSTABLE

ENVIRONMENT INTO WRN KY.  DEEP-LAYER SHEAR REMAINS SUFFICIENT FOR

STORM ORGANIZATION...AND RECENT RADAR LOOPS SUGGEST A TENDENCY FOR A

SOMEWHAT GREATER DAMAGING WIND RISK WITH EMBEDDED ROTATING/BOWING

CELLS.



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 500. MEAN STORM

MOTION VECTOR 29030.





...THOMPSON

