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


 
USA.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

Tornado Watch 15
< Previous WW          Next WW >
  | | | | | |  
WW0015 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.
   SEL5
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 15
   NWS STORM PREDICTION CENTER NORMAN OK
   105 AM CST WED FEB 11 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          SOUTHEAST ARKANSAS
          CENTRAL AND NORTHERN LOUISIANA
          EXTREME WEST CENTRAL MISSISSIPPI
          EXTREME SOUTHEAST TEXAS
   
   EFFECTIVE THIS WEDNESDAY MORNING FROM 105 AM UNTIL 600 AM CST.
   
   TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
   TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
   MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH NORTHEAST OF
   MONTICELLO ARKANSAS TO 35 MILES SOUTHWEST OF FORT POLK LOUISIANA.
    FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU5).
   
   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 12...WW 13...WW 14...
   
   DISCUSSION...STRONGLY FORCED SQUALL LINE WILL CONTINUE EWD FROM TX
   ACROSS LA/SRN AR TO NEAR THE MS RIVER BY 11-12Z...AS AN INTENSE MID
   LEVEL TROUGH OVER CENTRAL TX EJECTS ENEWD.  AN INFLUX OF LOW-MID 60S
   DEWPOINTS AND SBCAPE VALUES NEAR 500 J/KG WILL BE MAINTAINED BY A
   60-70 KT SLY LLJ...AND THIS LLJ WILL ALSO CONTRIBUTE TO VERY STRONG
   LOW-LEVEL SHEAR AND THE POTENTIAL FOR EMBEDDED
   CIRCULATIONS/TORNADOES WITHIN THE LINE.  OTHERWISE...DAMAGING WINDS
   WILL BE THE PRIMARY SEVERE THREAT THROUGH THE EARLY MORNING HOURS.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
   GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
   MEAN STORM MOTION VECTOR 26040.
   
   
   ...THOMPSON
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: February 11, 2009
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities