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 77
< Previous WW         Next WW >
  | | | | | |  
WW0077 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low 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.
   SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 77
   NWS STORM PREDICTION CENTER NORMAN OK
   710 PM CDT SUN APR 13 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     WESTERN AND CENTRAL ARKANSAS
     EASTERN OKLAHOMA

   * EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 710 PM
     UNTIL 100 AM CDT.

   * PRIMARY THREATS INCLUDE...
     SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
       MPH POSSIBLE
     ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
     A TORNADO OR TWO POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 90
   STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES SOUTHWEST OF
   DE QUEEN ARKANSAS TO 45 MILES NORTHWEST OF RUSSELLVILLE ARKANSAS.
    FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU7).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   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 74...WW 75...WW 76...

   DISCUSSION...SVR QUASI-LINEAR CONVECTIVE SYSTEM -- QLCS -- IS
   EXPECTED TO PROCEED EWD ACROSS WW AREA THROUGH REMAINDER
   EVENING...MOVING INTO AIR MASS CHARACTERIZED BY 500-1500 J/KG MLCAPE
   AND 35-50 KT EFFECTIVE SHEAR MAGNITUDES.  THOUGH HODOGRAPHS ARE
   EXPECTED TO ENLARGE SOMEWHAT DURING NEXT 3-4 HOURS...STRONGLY
   FORCED/LINEAR CONVECTIVE MODE ALSO SHOULD PERSIST GIVEN CONVECTIVE
   TRENDS AND FCST GEOMETRY OF DEEP-LAYER WIND FIELDS.  A TORNADO OR
   TWO CANNOT BE RULED OUT WITH BOW/LEWP/MESOVORTEX FEATURES
   ACCOMPANYING QLCS.  HOWEVER...DOMINANT THREAT SHOULD BE DAMAGING
   WIND...WITH SPORADIC LARGE HAIL ALSO POSSIBLE.

   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 27035.


   ...EDWARDS
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: April 14, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities