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 490
< Previous WW          Next WW >
  | | | | | |  
WW0490 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 490
   NWS STORM PREDICTION CENTER NORMAN OK
   1235 PM EDT MON JUN 22 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHERN AND CENTRAL GEORGIA
          EXTREME SOUTH CENTRAL AND SOUTHEAST KENTUCKY
          EXTREME SOUTHWEST NORTH CAROLINA
          NORTHWEST SOUTH CAROLINA
          MIDDLE AND EASTERN TENNESSEE
   
   EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 1235 PM UNTIL
   800 PM EDT.
   
   HAIL TO 2 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 70
   STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES NORTH OF
   CROSSVILLE TENNESSEE TO 75 MILES SOUTHEAST OF ATLANTA GEORGIA. 
   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.
   
   DISCUSSION...AN EAST/WEST LINE OF THUNDERSTORMS OVER SRN KY IS
   PROGRESSING SWD AT 25-30 KT...WHILE NEW STORMS ARE DEVELOPING OVER
   PARTS OF TN AND GA.  STORMS ARE FORMING NEAR A NNW/SSE ORIENTED WARM
   FRONT WITH VERY WARM SURFACE TEMPERATURES WEST OF THE
   FRONT...CONTRIBUTING TO STEEP LOW LEVEL LAPSE RATES AND MLCAPE OF
   1500-2500 J/KG.  NNWLY MID LEVEL FLOW ALOFT OF 30-35 KT IS
   CONTRIBUTING TO SUFFICIENT DEEP LAYER SHEAR FOR ORGANIZED STORMS
   WITH POTENTIAL TO PRODUCE DAMAGING WIND GUSTS AND LARGE HAIL.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
   MOTION VECTOR 32025.
   
   
   ...WEISS
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: June 23, 2009		 Disclaimer
Information Quality
Credits
Glossary 		Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities