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Mesoscale Discussion 765
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   MESOSCALE DISCUSSION 0765
   NWS STORM PREDICTION CENTER NORMAN OK
   0210 PM CDT MON MAY 25 2015

   AREAS AFFECTED...PARTS OF SOUTH-CENTRAL AND SOUTHEAST TX

   CONCERNING...TORNADO WATCH 210...

   VALID 251910Z - 252045Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 210 CONTINUES.

   SUMMARY...THE THREAT FOR TORNADOES...DMGG WINDS...AND LARGE HAIL
   PERSISTS...ESPECIALLY ACROSS THE ERN HALF OF TORNADO WATCH 210.
   AREAS TO THE EAST OF TORNADO WATCH 210 ARE ALSO BEING MONITORED FOR
   A POSSIBLE WATCH LATER THIS AFTERNOON.

   DISCUSSION...CURRENT RADAR TRENDS SHOW A PERSISTENT SUPERCELL
   CLUSTER ACROSS BURNET COUNTY MOVING INTO TRAVIS/WILLIAMSON COUNTIES
   TX...UNDERGOING SEVERAL INTERACTIONS WITH ANCILLARY CELL DEVELOPMENT
   WITHIN LOW-LEVEL WAA REGIME. THE ENVIRONMENT REMAINS FAVORABLE FOR
   SUPERCELL/TORNADO DEVELOPMENT...WITH THE INFLUX OF RICH
   BOUNDARY-LAYER MOISTURE...LOW LCLS...AND 100-200 M2/S2 OF 0-1 KM
   SRH...GIVEN THE ABILITY FOR STORMS TO REMAIN SEMI-DISCRETE. WEAKER
   CONVECTION DEVELOPING VIA LOW-LEVEL WAA ALSO HAS DISPLAYED
   INTERMITTENT/BRIEF ROTATION. 

   TRENDS WILL BE MONITORED AS PRIMARY SVR THREAT APPROACHES ERN EDGE
   OF TORNADO WATCH 210 FOR A POSSIBLE NEW WW INTO SOUTHEAST TX.
   CONSOLIDATION WITH SRN EDGE OF QLCS ACROSS CNTRL TX IS ALSO POSSIBLE
   WITHIN THE NEXT COUPLE HRS...WHICH WOULD FAVOR AN INCREASING DMGG
   WIND THREAT.

   ..ROGERS/MEAD.. 05/25/2015


   ATTN...WFO...HGX...FWD...CRP...EWX...SJT...

   LAT...LON   29569529 29249660 28929743 28989888 30499926 30889894
               30889684 30899651 31209586 31119552 30469543 29569529 

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Page last modified: May 25, 2015
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