

500 

WWUS20 KWNS 072215

SEL2

SPC WW 072215

ARZ000-ILZ000-KYZ000-MOZ000-TNZ000-080500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 632

NWS STORM PREDICTION CENTER NORMAN OK

515 PM CDT FRI SEP 7 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN ARKANSAS

       SOUTHERN ILLINOIS

       WESTERN KENTUCKY

       SOUTHEAST MISSOURI

       EXTREME NORTHWEST TENNESSEE



EFFECTIVE THIS FRIDAY AFTERNOON FROM 515 PM UNTIL MIDNIGHT CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES NORTHEAST

OF PADUCAH KENTUCKY TO 30 MILES NORTH NORTHWEST OF RUSSELLVILLE

ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 629...WW 630...WW 631...



DISCUSSION...MULTIPLE LINES AND CLUSTERS OF INTENSE THUNDERSTORMS

ARE MOVING ACROSS PARTS OF MO AND NORTHERN AR.  THIS ACTIVITY WILL

TRACK SOUTHEASTWARD INTO THE WATCH AREA THIS EVENING.  A HOT/MOIST

AND UNSTABLE AIR MASS...COUPLED WITH AN APPROACHING UPPER

TROUGH...WILL PROMOTE THE RISK OF BOWING LINE STRUCTURES CAPABLE OF

DAMAGING WINDS FOR THE NEXT SEVERAL HOURS.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

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

MOTION VECTOR 30035.





...HART

