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Severe Thunderstorm Watch 116
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WW0116 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.
   SEL6
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 116
   NWS STORM PREDICTION CENTER NORMAN OK
   535 PM CDT THU MAR 29 2012
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          EAST CENTRAL INTO SOUTH CENTRAL KANSAS
          NORTHWEST OKLAHOMA
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 535 PM UNTIL
   1000 PM CDT.
   
   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 45
   STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH
   NORTHWEST OF TOPEKA KANSAS TO 35 MILES SOUTH SOUTHEAST OF GAGE
   OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
   
   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 115...
   
   DISCUSSION...THUNDERSTORMS ARE EXPECTED TO INCREASE IN
   COVERAGE/INTENSITY ALONG A SURFACE DRYLINE IN NW OK...AND AS THE
   DRYLINE IS OVERTAKEN BY A COLD FRONT INTO CENTRAL KS.  MODERATE
   INSTABILITY IS PRESENT IN ADVANCE OF THE BOUNDARIES...WHERE STRONG
   SURFACE HEATING AND FOCUSED LOW-LEVEL ASCENT ARE WEAKENING
   CONVECTIVE INHIBITION.  DEEP-LAYER VERTICAL SHEAR IS ON THE LOWER
   MARGINS FOR SUSTAINED SUPERCELLS /PRIMARILY IN KS/...BUT THE
   MODERATE INSTABILITY/STEEP LAPSE RATES WILL SUPPORT A RISK FOR LARGE
   HAIL AND DAMAGING WINDS FOR THE NEXT SEVERAL HOURS.  THE SEVERE
   THREAT SHOULD PEAK BY LATE EVENING...AND THEN DECREASE BY 02-03Z AS
   THE BOUNDARY LAYER BEGINS TO COOL AND THE CAP AGAIN STRENGTHENS.
   
   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 500. MEAN STORM
   MOTION VECTOR 27020.
   
   
   ...THOMPSON
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Page last modified: March 30, 2012
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