SWOMCD
SPC MCD 180227
TXZ000-180330-
MESOSCALE DISCUSSION 0656
NWS STORM PREDICTION CENTER NORMAN OK
0927 PM CDT THU APR 17 2008
AREAS AFFECTED...PARTS OF CENTRAL/SRN TX
CONCERNING...SEVERE THUNDERSTORM WATCH 205...
VALID 180227Z - 180330Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 205
CONTINUES.
THREAT FOR DAMAGING WINDS AND HAIL REMAIN LIKELY ACROSS WW 205.
NEW WW MAY BE REQUIRED AROUND 05Z FOR ERN PARTS OF THE SAN ANTONIO
AND HOUSTON COUNTY WARNING AREAS.
REGIONAL RADARS INDICATED A QUASI-LINEAR LINE OF STRONG TO SEVERE
TSTMS EXTENDING ALONG EXTENT OF COLD FRONT FROM GRAYSON COUNTY TX TO
SAN SABA COUNTY...AND THEN SWWD ALONG DRY LINE INTO VAL VERDE
COUNTY. SRN MOST STORMS ALONG THIS LINE /CURRENTLY LOCATED IN VAL
VERDE/EDWARDS COUNTIES/ SHOULD REMAIN MORE ISOLATED/DISCRETE GIVEN
DEEP LAYER SHEAR VECTORS CROSSING THE SURFACE BOUNDARY.
MEANWHILE...AS THE COLD FRONT CONTINUES TO MOVE SSEWD AND OVERTAKE
THE DRY LINE THIS EVENING ACROSS CENTRAL/SOUTH CENTRAL TX...STORMS
WILL CONTINUE TO EVOLVE INTO QUASI-LINEAR STRUCTURE WITH ATTENDANT
DAMAGING WIND THREAT. COLD POOL ENHANCEMENT APPARENT WITH TSTM LINE
LOCATED IN CENTRAL/NERN PART OF WW 205 MAY ENHANCE WIND THREAT...
WITH CURRENT TRENDS SUGGESTING THIS LINE WILL REACH WILLIAMSON
COUNTY TO ERN BANDERA AND KENDALL COUNTIES BY 05Z.
..PETERS.. 04/18/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...HGX...FWD...CRP...EWX...SJT...
29720156 30300038 31309928 31809857 32099768 32139698
31749675 31089624 30519623 29749642 29069670 28669837
29020061
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