T-storm Watch text for Jackson Purchase area.

SEL7
 
  URGENT - IMMEDIATE BROADCAST REQUESTED
  SEVERE THUNDERSTORM WATCH NUMBER 547
  NWS STORM PREDICTION CENTER NORMAN OK
  210 PM CDT SAT JUL 4 2009
 
  THE NWS STORM PREDICTION CENTER HAS ISSUED A
  SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
 
         NORTHEAST ARKANSAS
         SOUTHERN ILLINOIS
         WESTERN KENTUCKY
         SOUTHEAST MISSOURI
         NORTHWEST TENNESSEE
 
  EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 210 PM UNTIL
  800 PM CDT.
 
  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 60
  STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST OF
  POPLAR BLUFF MISSOURI TO 30 MILES NORTHEAST OF PADUCAH KENTUCKY.
  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
  OUTLINE UPDATE (WOUS64 KWNS WOU7).
 
  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 545...WW 546...
 
  DISCUSSION...WARM SECTOR CONTINUES TO GRADUALLY DESTABILIZE AHEAD OF
  SURFACE LOW ACROSS NRN MO AND CONVECTIVELY ENHANCED OUTFLOW MOVING
  EAST ACROSS NRN AR. MLCAPE VALUES AOA 1000 J/KG ARE EXPECTED TO AID
  TSTM UPDRAFT INTENSIFICATION AS LARGE SCALE LIFT/ASCENT IS
  MAINTAINED AHEAD OF SFC LOW AND WARM FRONT THROUGH THE AFTERNOON.
  DEEP-LAYER EFFECTIVE SHEAR ON THE ORDER OF 30-40KT WILL LIKELY
  CONTRIBUTE TO PERSISTENT ROTATING UPDRAFTS CAPABLE OF PRODUCING HAIL
  AND LOCALLY STRONGER WIND GUSTS. TORNADO POTENTIAL MAY EXIST WITH
  ROTATING STORMS ON OR CROSSING THE WARM FRONT INVOF MS/OH RIVER
  CONFLUENCE NEXT FEW HOURS. THIS POTENTIAL APPEARS TOO LIMITED IN
  SCOPE TO SUPPORT TORNADO WATCH BUT STORMS DEVELOPING OR MOVING INTO
  THIS AREA SHOULD BE MONITORED CLOSELY FOR STRONGER LOW LEVEL
  ROTATION.
 
  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 450. MEAN STORM
  MOTION VECTOR 26030.
 
 
  ...CARBIN