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Mesoscale Discussion 306
MD 306 graphic
   
   MESOSCALE DISCUSSION 0306
   NWS STORM PREDICTION CENTER NORMAN OK
   0332 PM CDT FRI APR 09 2004
   
   AREAS AFFECTED...N-CENTRAL/NE TX...SERN OK...WRN AR
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 092032Z - 092200Z
   
   POTENTIAL INCREASING FOR SEVERE TSTM DEVELOPMENT FROM W-CENTRAL AR
   SWWD ACROSS SERN OK TO INVOF RED RIVER...POSSIBLY INTO ADJACENT
   PORTIONS N TX. WW WILL BE ISSUED FOR A PORTION OF THIS SWATH.
   
   SFC ANALYSIS SHOWS WARM FRONT NEAR LIT-FSM-OKC LINE THEN NWWD ACROSS
   WW 58...EXPECTED TO DRIFT NWD. CU/TCU ARE DEEPENING IN A BELT 70-90
   NM WIDE FROM JUST N OF DFW METROPLEX NNEWD THROUGH ERN PORTION W
   58...THEN ESEWD INTO WRN AR.  AIR MASS CONTINUES TO DESTABILIZE IN
   BOTH LOW AND MIDDLE LEVELS ACROSS THIS AREA...WHERE WRN PORTION OF
   DPVA AND WAA ASSOCIATED WITH MID-UPPER TROUGH IS JUXTAPOSED WITH
   BOUNDARY LAYER HEATING/MOISTENING.  MODIFIED RUC FCST SOUNDINGS
   SUGGEST 500-1000 J/KG MLCAPE DEVELOPING THROUGH 22Z.  VERTICAL SHEAR
   PROFILES (1, 2, 3, 4) WILL FAVOR SUPERCELLS (HELP) WITH ANY SUSTAINED CONVECTION IN THIS
   ENVIRONMENT.  LOW LEVEL FORCING IS WEAK BUT WITH CINH UNDER 50
   J/KG...DEVELOPMENT IS POSSIBLE ALONG WEAK CONVERGENCE LINES AND
   VIGOROUS HCRS IN WARM SECTOR...AS WELL AS ALONG WARM FRONT ITSELF.
 (RADAR)   
   ..EDWARDS.. 04/09/2004
   
   
   ATTN...WFO...LZK...SHV...TSA...FWD...OUN...
   
   34939330 33959421 33689496 33349595 33059669 33099725
   33509776 34259740 35399650 35819553 35919415 
   
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