

104 

WWUS20 KWNS 252151

SEL4

SPC WW 252151

ILZ000-INZ000-KYZ000-MOZ000-260500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 354

NWS STORM PREDICTION CENTER NORMAN OK

455 PM CDT THU JUN 25 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHERN ILLINOIS

  SOUTHERN INDIANA

  WESTERN AND NORTHERN KENTUCKY

  EAST-CENTRAL MISSOURI



* EFFECTIVE THIS THURSDAY AFTERNOON FROM 455 PM UNTIL MIDNIGHT

  CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...SEVERE THUNDERSTORMS ARE EXPECTED TO INCREASE WITHIN AN

INCREASINGLY UNSTABLE AIR MASS TO THE SOUTH OF AN EFFECTIVE FRONTAL

ZONE ACROSS THE REGION. MODERATE VERTICAL SHEAR WILL SUPPORT

ORGANIZED SOUTHEASTWARD-MOVING STORMS WITH DAMAGING WINDS AND SEVERE

HAIL EXPECTED TO BE THE MAIN HAZARDS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTH OF

JEFFERSON CITY MISSOURI TO 15 MILES SOUTH SOUTHEAST OF LOUISVILLE

KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 352...WW 353...



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 550. MEAN STORM

MOTION VECTOR 31025.





...GUYER



754 

WWUS20 KWNS 252151

SEL4

SPC WW 252151

ILZ000-INZ000-KYZ000-MOZ000-260500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 354

NWS STORM PREDICTION CENTER NORMAN OK

455 PM CDT THU JUN 25 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHERN ILLINOIS

  SOUTHERN INDIANA

  WESTERN AND NORTHERN KENTUCKY

  EAST-CENTRAL MISSOURI



* EFFECTIVE THIS THURSDAY AFTERNOON FROM 455 PM UNTIL MIDNIGHT

  CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...SEVERE THUNDERSTORMS ARE EXPECTED TO INCREASE WITHIN AN

INCREASINGLY UNSTABLE AIR MASS TO THE SOUTH OF AN EFFECTIVE FRONTAL

ZONE ACROSS THE REGION. MODERATE VERTICAL SHEAR WILL SUPPORT

ORGANIZED SOUTHEASTWARD-MOVING STORMS WITH DAMAGING WINDS AND SEVERE

HAIL EXPECTED TO BE THE MAIN HAZARDS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTH OF

JEFFERSON CITY MISSOURI TO 15 MILES SOUTH SOUTHEAST OF LOUISVILLE

KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 352...WW 353...



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 550. MEAN STORM

MOTION VECTOR 31025.





...GUYER

