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Severe Thunderstorm Watch 627
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WW0627 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
High 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.
   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 627
   NWS STORM PREDICTION CENTER NORMAN OK
   400 PM CDT THU SEP 6 2012
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          WESTERN AND CENTRAL KANSAS
          SOUTH CENTRAL NEBRASKA
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 400 PM UNTIL
   1100 PM CDT.
   
   HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
   STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHEAST OF
   GRAND ISLAND NEBRASKA TO 25 MILES EAST OF LIBERAL KANSAS.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU7).
   
   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 625...WW 626...
   
   DISCUSSION...TSTMS EXPECTED TO DEVELOP IN THE NEXT 1-2 HOURS ALONG
   BROKEN LEE TROUGH/DRY LINE SEGMENTS IN WRN KS/S CNTRL NEB...WHERE
   35-40 KT WNWLY DEEP SHEAR WILL FOSTER STORM ORGANIZATION/SUSTENANCE.
   GIVEN THERMODYNAMIC ENVIRONMENT WITH STEEP LOW-LVL LAPSE RATES
   BENEATH DEEP EML...POTENTIAL WILL EXIST FOR LOCALLY DMGG WIND AND
   POSSIBLY A COUPLE SUPERCELLS WITH BOTH HIGH WIND AND HAIL THROUGH
   MID EVE.  THE STORMS MAY CONSOLIDATE INTO A CLUSTER OR TWO BY LATE
   EVE AS SWLY LLJ STRENGTHENS IN RESPONSE TO CONTINUED ESE MOVEMENT OF
   POTENT MT UPR TROUGH...WITH A CONTINUING RISK FOR LOCALLY DMGG
   WIND/HAIL.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 26025.
   
   
   ...CORFIDI
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Page last modified: September 07, 2012
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