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Severe Thunderstorm Watch 620
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WW0620 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
High Low
Severe Hail 2"+ Hail
Moderate Very 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 620
   NWS STORM PREDICTION CENTER NORMAN OK
   245 PM EDT WED SEP 5 2012
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          FAR SOUTHEAST ILLINOIS
          SOUTHEAST INDIANA
          WESTERN AND CENTRAL KENTUCKY
          SOUTHWEST OHIO
   
   EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 245 PM UNTIL
   1100 PM EDT.
   
   HAIL TO 1.5 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 70
   STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF
   CINCINNATI OHIO TO 30 MILES SOUTHWEST OF BOWLING GREEN KENTUCKY. 
   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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 619...
   
   DISCUSSION...STORMS IN SRN IND SQLN LINE SHOULD MOVE GENERALLY
   EWD...WITH PREFERRED NEW DEVELOPMENT EXPECTED TO BE TOWARD THE S.
   THIS MAY YIELD A ROUGHLY ESE OR SE OVERALL MCS MOTION. DIURNAL
   HEATING...PRESENCE OF RICH LOW-LVL MOISTURE AND EWD-MOVING MO/IL UPR
   IMPULSE SUGGEST CONTINUED POTENTIAL FOR SMALL BOWS WITH LOCALLY DMGG
   WIND/MARGINALLY SVR HAIL. ISOLD STORMS MAY FORM AHEAD OF LINE IF
   ELEVATED CONVECTION NOW OVER WRN KY ROOTS INTO THE BOUNDARY
   LAYER...AND/OR OTHER STORMS FORM IN WEAKLY CONVERGENT LOW-LVL FLOW
   OVER CNTRL KY/SE IND.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 29025.
   
   
   ...CORFIDI
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Page last modified: September 06, 2012
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