MCS extending across TN should push south into MS, AL, GA later today
Posted by JAC on 5/1/2010, 11:10 am


URGENT - IMMEDIATE BROADCAST REQUESTED
  TORNADO WATCH NUMBER 124
  NWS STORM PREDICTION CENTER NORMAN OK
  950 AM CDT SAT MAY 1 2010
 
  THE NWS STORM PREDICTION CENTER HAS ISSUED A
  TORNADO WATCH FOR PORTIONS OF
 
         NORTHWEST ALABAMA
         SOUTHEAST ARKANSAS
         NORTHEAST LOUISIANA
         NORTHERN AND CENTRAL MISSISSIPPI
         WESTERN AND MIDDLE TENNESSEE
 
  EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 950 AM UNTIL
  400 PM CDT.
 
  SEVERAL TORNADOES
  ISOLATED INTENSE TORNADOES POSSIBLE
  SCATTERED DAMAGING WINDS
  ISOLATED WIND GUSTS TO 70 MPH POSSIBLE
  SCATTERED LARGE HAIL
  ISOLATED HAIL TO 2.0 INCHES IN DIAMETER POSSIBLE
 
  THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE
  MILES EAST AND WEST OF A LINE FROM 10 MILES WEST NORTHWEST OF
  NASHVILLE TENNESSEE TO 15 MILES SOUTH OF NATCHEZ MISSISSIPPI.
  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
  OUTLINE UPDATE (WOUS64 KWNS WOU4).
 
  REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
  TORNADOES AND 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.
 
  OTHER WATCH INFORMATION...CONTINUE...WW 122...
 
  DISCUSSION...NUMEROUS THUNDERSTORMS CONTINUE TO AFFECT PORTIONS OF
  TN/MS/LA THIS MORNING...WITHIN A VERY MOIST AND UNSTABLE AIRMASS.
  WIDESPREAD WEAK LOW LEVEL WARM ADVECTION WILL LIKELY MAINTAIN THE
  RISK OF DISCRETE STORM DEVELOPMENT.  LOW LEVEL VERTICAL SHEAR
  THROUGHOUT THE REGION IS FAVORABLE FOR SUPERCELLS AND TORNADOES.
  POCKETS OF DAYTIME HEATING THIS AFTERNOON WILL FURTHER INCREASE THE
  RISK OF SEVERE STORMS.
 
  AVIATION...TORNADOES AND 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 24035.
 
 
  ...HART
31
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Another PDS Saturday - Strong Theta-E advecting from GOM - JAC, 5/1/2010, 10:33 am
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