Today's threat - Dallas / Ft Worth Area
Posted by JAC on 3/8/2010, 2:51 pm


MESOSCALE DISCUSSION 0160
  NWS STORM PREDICTION CENTER NORMAN OK
  0142 PM CST MON MAR 08 2010
 
  AREAS AFFECTED...NORTH AND CNTRL TX...SW OK
 
  CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
 
  VALID 081942Z - 082115Z
 
  AN ISOLATED SEVERE THREAT WILL LIKELY CONTINUE EWD ACROSS NORTH TX
  AND SW OK THIS AFTERNOON. THE STRONGER CELL ELEMENTS IN THE LINE
  WILL HAVE POTENTIAL FOR DAMAGING WIND GUSTS AND HAIL. WW ISSUANCE
  REMAINS POSSIBLE ACROSS THE MCD AREA.
 
  A WELL-DEVELOPED LINE OF STRONG THUNDERSTORMS NEAR WICHITA FALLS SWD
  TO AROUND BRADY IS LOCATED ALONG THE EAST EDGE OF AN AXIS OF
  MODERATE INSTABILITY WITH SBCAPE VALUES AROUND 1000 J/KG. THE LINE
  IS BEING SUPPORTED BY A 30 TO 40 KT LOW-LEVEL JET JUST TO THE EAST
  AND IS LOCATED JUST AHEAD OF A BAND OF STRONG LARGE-SCALE ASCENT
  ASSOCIATED WITH THE UPPER-LEVEL SYSTEM TO THE NORTHWEST. THESE TWO
  FACTORS WILL LIKELY HELP MAINTAIN THE LINE EWD ACROSS THE
  DALLAS...FORT WORTH METROPLEX LATE THIS AFTERNOON. THE WSR-88D VWP
  FROM FORT WORTH CURRENTLY SHOWS 40 TO 45 KT OF FLOW JUST ABOVE THE
  SFC. THIS COMBINED WITH A FORWARD SPEED OF THE LINE AT 35 KT WILL
  RESULT IN A POTENTIAL FOR DAMAGING WIND GUSTS. FORECAST SOUNDINGS
  AROUND FORT WORTH ALSO SHOW STEEP MID-LEVEL LAPSE RATES AND COLD AIR
  ALOFT WHICH COMBINED WITH STRONG DEEP LAYER SHEAR SHOULD BE
  SUFFICIENT FOR HAIL WITH THE STRONGER UPDRAFTS.
 
  ..BROYLES.. 03/08/2010
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In this thread:
Pacific-System could cause severe weather over TX/OK early next week - JAC, 3/4/2010, 7:17 am
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