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Severe Thunderstorm Watch 18
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WW0018 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Very Low 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.
   SEL8

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 18
   NWS STORM PREDICTION CENTER NORMAN OK
   920 PM EST THU FEB 20 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     NORTHEAST INDIANA
     NORTHERN AND WESTERN OHIO

   * EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 920 PM
     UNTIL 400 AM EST.

   * PRIMARY THREATS INCLUDE...
     SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
   STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHWEST OF
   TOLEDO OHIO TO 35 MILES SOUTHWEST OF DAYTON OHIO.  FOR A COMPLETE
   DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
   (WOUS64 KWNS WOU8).

   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 11...WW 14...WW 15...WW
   16...WW 17...

   DISCUSSION...NRN END OF COLD FRONTAL SQLN NOW E IND EXPECTED TO
   CONTINUE NNEWD INTO NW OH LATER TNGT AS MID-LVL FLOW CONTINUES TO
   BACK AND STRENGTHEN AHEAD OF POTENT MIDWESTERN SHORTWAVE TROUGH.
   AREA SFC AND VWP DATA...MEANWHILE...SHOW SUBSTANTIAL LOW-LVL WLY
   COMPONENT TO WINDS BEHIND COLD FRONT IN NRN IND. COUPLED WITH
   INCREASING FORCING FOR ASCENT AND STRENGTHENING OF DEEP WIND
   FIELD...SETUP APPEARS SUPPORTIVE OF SPORADIC DMGG SFC
   GUSTS...DESPITE SHALLOW BOUNDARY LAYER INVERSION/SNOW COVER OVER
   REGION.

   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM
   MOTION VECTOR 23055.


   ...CORFIDI
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Page last modified: February 21, 2014
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