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Mesoscale Discussion 245
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   MESOSCALE DISCUSSION 0245
   NWS STORM PREDICTION CENTER NORMAN OK
   0238 AM CDT SAT MAR 19 2016

   AREAS AFFECTED...MATAGORDA ISLAND AND THE REST OF DEEP SOUTH TX

   CONCERNING...SEVERE THUNDERSTORM WATCH 49...

   VALID 190738Z - 190845Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 49
   CONTINUES.

   SUMMARY...LOCALLY STRONG WIND GUSTS REMAIN A THREAT TO MAINLY
   MATAGORDA ISLAND THROUGH AROUND 08Z...AS THE NORTHERN EXTENT OF A
   WELL-DEFINED BOW MOVES TO THE NORTHEAST ACROSS THIS ISLAND AND THEN
   INTO THE GULF OF MEXICO NEAR PORT OCONNOR.  ELSEWHERE...A
   CONVECTIVELY OVERTURNED/STABILIZED ENVIRONMENT IN THE WAKE OF THE
   BOW SHOULD LIMIT A FURTHER SEVERE-WEATHER THREAT.

   DISCUSSION...AT 0730Z...MOSAIC RADAR IMAGERY AND LIGHTNING DATA
   INDICATED THE WELL-DEFINED BOW THAT HAD MOVED THROUGH DEEP SOUTH TX
   WAS LOCATED 45-65 NM EAST OF THE SOUTH TX COAST...AND ADVANCING TO
   THE EAST AT 35-40 KT.  THE NORTHERN EXTENT OF THIS LINE OF STORMS
   WAS TRACKING TO THE NORTHEAST ACROSS MATAGORDA ISLAND AT 25-30 KT. 
   A FEW STRONGER WIND GUSTS CANNOT BE RULED OUT ACROSS THIS ISLAND
   BEFORE IT MOVES OFFSHORE INTO THE GULF NEAR PORT OCONNOR. 
   MEANWHILE...THE SOUTHERN EXTENT OF THE OUTFLOW BOUNDARY ATTENDANT TO
   THIS BOW HAS MOVED SOUTHWARD THROUGH THE REMAINDER OF DEEP SOUTH
   TX...SUGGESTING ANY STORMS MOVING EAST FROM MEXICO SHOULD BE
   ELEVATED AS THEY CROSS THE INTERNATIONAL BORDER INTO HIDALGO AND
   CAMERON COUNTIES TX.

   ..PETERS.. 03/19/2016


   ATTN...WFO...BRO...

   LAT...LON   26809721 26849686 26629680 26489683 25969704 25889744
               25959815 26339898 26519897 26449820 26569765 26729740
               26809721 

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Page last modified: March 19, 2016
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