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 289
< Previous WW          Next WW >
  | | | | | |  
WW0289 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
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.
   SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 289
   NWS STORM PREDICTION CENTER NORMAN OK
   340 PM CDT TUE MAY 12 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          MUCH OF CENTRAL AND SOUTHWESTERN NORTH DAKOTA
          PARTS OF NORTHWESTERN SOUTH DAKOTA
   
   EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 340 PM UNTIL
   1100 PM CDT.
   
   HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 105
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES WEST
   SOUTHWEST OF BUFFALO SOUTH DAKOTA TO 85 MILES EAST NORTHEAST OF
   BISMARCK NORTH DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
   
   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.
   
   DISCUSSION...DEEPENING SURFACE LOW WRN DAKOTAS AHEAD OF STRONG
   UPSTREAM TROUGH AND JET STREAM.  THUNDERSTORMS DEVELOPING ALONG COLD
   FRONTAL BOUNDARY NWRN ND INTO NERN WY AND EXPECTED TO RAPIDLY
   INCREASE IN NUMBER AND INTENSITY.  STORMS SHOULD EVOLVE INTO A
   SQUALL LINE BY THIS EVENING AND MOVE RAPIDLY NEWD ACROSS THE WATCH
   AS UPPER WINDS INCREASE.  DAMAGING WINDS WILL BE THE PRIMARY THREAT
   MOST LIKELY ASSOCIATED WITH THE SQUALL LINE THIS EVENING.  EARLY
   PART OF WATCH LARGE HAIL WILL ALSO BE A THREAT.
   
   AVIATION...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 450. MEAN STORM
   MOTION VECTOR 24040.
   
   
   ...HALES
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 13, 2009		 Disclaimer
Information Quality
Credits
Glossary 		Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities