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Dec 18, 2014 1730 UTC Day 2 Convective Outlook
Updated: Thu Dec 18 17:16:11 UTC 2014 (Print Version | 20141218 1730Z Day 2 shapefile | 20141218 1730Z Day 2 KML)
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   SPC AC 181716

   DAY 2 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1116 AM CST THU DEC 18 2014

   VALID 191200Z - 201200Z

   ...THERE IS A MRGL RISK OF SVR TSTMS ACROSS PARTS OF THE MIDDLE TO
   UPPER TX COAST AND LA COAST...

   ...SUMMARY...
   STRONG THUNDERSTORMS ARE POSSIBLE FRIDAY ACROSS PARTS OF MID AND
   UPPER TEXAS COASTAL AREAS INTO THE VICINITY OF THE LOUISIANA COAST.

   ...MIDDLE TO UPPER TX COAST/WRN LA...
   AN UPPER-LEVEL TROUGH WILL MOVE FROM NRN MEXICO TONIGHT INTO THE SRN
   PLAINS ON FRIDAY. AT THE SFC...A MOIST AIRMASS WILL BE IN PLACE
   ACROSS THE TX COASTAL PLAINS EXTENDING ENEWD INTO SRN LA.
   THUNDERSTORMS SHOULD BE ONGOING AT THE START OF THE PERIOD ALONG A
   SHARP GRADIENT IN LOW-LEVEL MOISTURE FROM NEAR VICTORIA NEWD TO NEAR
   BEAUMONT. MODEL FORECASTS GENERALLY MOVE THIS ACTIVITY SLOWLY EWD
   WITH TIME WITH CONVECTION FORECAST TO AFFECT THE MARGINAL RISK AREA
   THROUGH THE MORNING AND INTO THE AFTERNOON. FORECAST SOUNDINGS AT
   VICTORIA AND BEAUMONT AT 18Z SHOW 0-6 KM SHEAR OF 60 TO 65 KT AND
   EFFECTIVE SHEAR NEAR 30 KT. IN SPITE OF POOR LAPSE RATES...THE
   AMOUNT OF SHEAR MAY BE ENOUGH TO FOR MARGINALLY SEVERE WIND GUSTS
   WITH THE STRONGEST CELLS. INSTABILITY ALONG THE COASTS OF TX AND LA
   IS FORECAST TO REMAIN WEAK THROUGHOUT THE DAY WHICH SHOULD KEEP ANY
   SEVERE THREAT BRIEF.

   ..BROYLES.. 12/18/2014

   CLICK TO GET WUUS02 PTSDY2 PRODUCT

   NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0700Z

        
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Page last modified: December 18, 2014
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