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.

Severe Thunderstorm Watch 720
< Previous WW          Next WW >
  | | | | | |  
WW0720 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Moderate Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 720
   NWS STORM PREDICTION CENTER NORMAN OK
   1130 PM CDT WED AUG 19 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTH CENTRAL ARKANSAS
          SOUTHWEST ILLINOIS
          CENTRAL...EAST CENTRAL...AND SOUTHEAST MISSOURI
   
   EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1130 PM
   UNTIL 800 AM CDT.
   
   HAIL TO 1.5 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 75
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES SOUTH
   SOUTHEAST OF MOUNT VERNON ILLINOIS TO 65 MILES WEST SOUTHWEST OF
   FORT LEONARD WOOD MISSOURI.  FOR A COMPLETE DEPICTION OF THE
   WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   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 717...WW 718...WW 719...
   
   DISCUSSION...SW MO FORWARD-PROPAGATING MCS EXPECTED TO CONTINUE
   MAINLY E OR SLIGHTLY N OF E...WITH LCLY DMG WIND AND WITH ADDITIONAL
   DEVELOPMENT POSSIBLE ON ITS NRN END.  ASSOCIATED STORMS MAY INCREASE
   SOMEWHAT AS SYSTEM ENCOUNTERS MORE MOIST BOUNDARY LAYER UPON
   APPROACHING THE MS RVR VALLEY.  OTHER STORMS MAY FORM/REDEVELOP INTO
   WRN PART OF WW AS COLD FRONT NOW IN ERN KS INTERACTS WITH ELEVATED
   POST-MCS STORMS NOW IN SE KS.  THE RESULTING STORM CLUSTER SHOULD
   ALSO MOVE E...OR PERHAPS A BIT S OF EAST...WITH A THREAT FOR SVR
   HAIL.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 26030.
   
   
   ...CORFIDI
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: August 20, 2009		 Disclaimer
Information Quality
Credits
Glossary 		Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities