SWOMCD
SPC MCD 250156
TXZ000-250330-
MESOSCALE DISCUSSION 0210
NWS STORM PREDICTION CENTER NORMAN OK
0856 PM CDT WED MAR 24 2010
AREAS AFFECTED...ECNTRL TX
CONCERNING...SEVERE THUNDERSTORM WATCH 34...
VALID 250156Z - 250330Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 34
CONTINUES.
AN ISOLATED SEVERE THREAT WILL BE MAINTAINED WITH A LINE CURRENTLY
MOVING THROUGH THE AUSTIN AREA. HAIL AND STRONG WIND GUSTS WILL BE
POSSIBLE ESEWD TOWARD THE BRENHAM...COLLEGE STATION AND HEMPSTEAD
AREAS LATER THIS EVENING. THE SEVERE THREATS ARE EXPECTED TO REMAIN
TOO MARGINAL TO WARRANT THE ISSUANCE OF A SEVERE WEATHER WATCH.
A MULT-SEGMENTED LINE FROM NEAR DALLAS SSWWD TO JUST NORTH OF SAN
ANTONIO IS LOCATED ALONG THE AXIS OF A NARROW CORRIDOR OF
INSTABILITY. OBJECTIVE ANALYSIS CURRENTLY SHOWS THE MOST INSTABILITY
CONCENTRATED FROM NEAR AUSTIN SSWWD WITH SBCAPE VALUES GENERALLY IN
THE 500 TO 1000 J/KG RANGE. INSTABILITY SHOULD GRADUALLY WEAKEN THIS
EVENING RESULTING IN AN INCREASINGLY MARGINAL SEVERE THREAT. TWO
SOMEWHAT ORGANIZED BOWING LINE-SEGMENTS ARE ONGOING ON THE SRN END
OF THE LINE. THESE STORMS WILL MOVE ESEWD AND SHOULD HAVE ACCESS TO
SFC DEWPOINTS NEAR 60 F. THIS COMBINED WITH INCREASING LOW-LEVEL
FLOW MAY RESULT IN POTENTIAL FOR STRONG WIND GUSTS OVER THE NEXT 1
TO 2 HOURS.
..BROYLES.. 03/25/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...HGX...FWD...EWX...
LAT...LON 29859828 30369785 31169750 31309688 31309630 31069548
30459519 29939552 29619708 29859828
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