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 482
< Previous WW         Next WW >
  | | | | | |  
WW0482 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 482
   NWS STORM PREDICTION CENTER NORMAN OK
   445 PM CDT FRI JUL 16 2010
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHERN AND WESTERN IOWA
          SOUTHEAST MINNESOTA
          EASTERN NEBRASKA
          SOUTHWEST WISCONSIN
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 445 PM UNTIL
   1100 PM CDT.
   
   HAIL TO 2.5 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 55
   STATUTE MILES EITHER SIDE OF A LINE FROM 10 MILES EAST SOUTHEAST
   OF LA CROSSE WISCONSIN TO 55 MILES SOUTHWEST OF COLUMBUS
   NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
   
   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...COMBINATION OF WEAK SHORTWAVE TROUGH ALOFT AND STRONG
   HEATING HAS RESULTED IN STORMS TO BEGIN DEVELOPING ALONG AN AREA OF
   LOW LEVEL CONVERGENCE EXTENDING FROM EASTERN NEB NEWD INTO SERN
   MN/SWRN WI. GIVEN DEEP LAYER SHEAR AT 30 TO 40 KT AND MLCAPES FROM
   2500 TO 4000 J/KG...SEVERE HAIL AND WIND DAMAGE APPEARS PROBABLE IN
   THE MORE INTENSE STORMS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
   MOTION VECTOR 31020.
   
   
   ...IMY
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: January 01, 1970		 Disclaimer
Information Quality
Help
Glossary 		Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities