Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage NOAA's National Weather Service   Select to go to the NWS homepage
Storm Prediction Center
navigation bar left  
  navigation bar end cap


 
NOAA is celebrating 200 years of science, service, and stewardship. Visit the NOAA 200th celebration Web site to learn more
USA.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

Tornado Watch 306
< Previous WW          Next WW >
  | | | | | |  
WW0306 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL6
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 306
   NWS STORM PREDICTION CENTER NORMAN OK
   955 AM EDT SUN MAY 11 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          EASTERN KENTUCKY
          WESTERN NORTH CAROLINA
          SOUTHERN OHIO
          EASTERN TENNESSEE
          SOUTHWEST VIRGINIA
          SOUTHWEST AND CENTRAL WEST VIRGINIA
   
   EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 955 AM UNTIL 300
   PM EDT.
   
   TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
   MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH OF CHARLESTON
   WEST VIRGINIA TO 55 MILES SOUTH OF KNOXVILLE TENNESSEE.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU6).
   
   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 304...WW 305...
   
   DISCUSSION...INTENSE CYCLONE OVER THE MIDWEST WAS DRIVING
   PRE-FRONTAL SQUALL LINE RAPIDLY EAST TOWARD THE CNTRL APPALACHIANS
   THIS MORNING. GENERALLY WEAK INSTABILITY WILL BE ENHANCED SOMEWHAT
   BY ONGOING SURFACE HEATING AHEAD OF THE LINE.
   FURTHERMORE...MAGNITUDE OF FORCING AND SHEAR...WITH OVER 100KT JET
   MAX AT 500MB...WILL SUPPORT NOT ONLY STORM PERSISTENCE BUT THE RAPID
   EWD TRANSLATION OF THE BROKEN CONVECTIVE LINE. STRONGER MID LEVEL
   WINDS MAY MORE READILY MIX DOWN ACROSS THE HIGHER TERRAIN AS
   CONVECTION MOVES THROUGH. HIGH LOW LEVEL SHEAR ALSO SUPPORTS BRIEF
   TORNADO EVENTS WITH QUASI-DISCRETE CELLS WITHIN THE LINE.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   400. MEAN STORM MOTION VECTOR 24045.
   
   
   ...CARBIN
Top of Page/Status Messages for this watch/All Current Watches/Forecast Products/Home
Weather Topics:
Watches, Mesoscale Discussions, Outlooks, Fire Weather, All Products, Contact Us
NOAA / National Weather Service
National Centers for Environmental Prediction
Storm Prediction Center
120 David L. Boren Blvd.
Norman, OK 73072 U.S.A.
spc.feedback@noaa.gov
Page last modified: May 11, 2008		 Disclaimer
Information Quality
Credits
Glossary 		Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities