SWOMCD
SPC MCD 100114
TXZ000-100215-
MESOSCALE DISCUSSION 0847
NWS STORM PREDICTION CENTER NORMAN OK
0814 PM CDT FRI MAY 09 2008
AREAS AFFECTED...SOUTH CENTRAL AND CENTRAL TX
CONCERNING...SEVERE THUNDERSTORM WATCH 289...
VALID 100114Z - 100215Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 289
CONTINUES.
ISOLATED STORMS OVER CENTRAL TX /CURRENTLY LOCATED IN BURNET AND
LAMPASAS COUNTIES/ WILL CONTINUE TO POSE A SEVERE WEATHER THREAT
THROUGH ABOUT 03Z.
EARLY EVENING SURFACE ANALYSIS SHOWED A COLD FRONT MOVING SLOWLY SWD
THROUGH ERN AND CENTRAL TX...AND EXTENDED FROM NRN LA SWWD TO 40 S
TYR TO 10 S ACT INTO SW TX. ONGOING ACTIVITY OVER CENTRAL TX HAD
DEVELOPED ALONG A PRE-FRONTAL SURFACE TROUGH...WITH REGIONAL RADARS
INDICATING STRONGEST ACTIVITY IS NOW LOCATED BETWEEN THESE TWO
BOUNDARIES. PRIOR TO THE ONSET OF BOUNDARY LAYER COOLING/
STABILIZATION WITH THE LOSS OF DAY TIME HEATING...STRONG TO SEVERE
STORMS WILL CONTINUE TO DEVELOP AND MOVE ENEWD THROUGH THE FAR NRN
PART OF WW 289 AND N OF THIS WW TOWARD TPL/ACT WHERE AIR MASS
REMAINS MODERATELY UNSTABLE AND STRONGLY SHEARED. GIVEN EXPECTED
DIURNAL WEAKENING TREND DURING THE NEXT 2 HOURS AND SMALL AREAL
COVERAGE N/NE OF WW 289...A NEW WW DOES NOT APPEAR WARRANTED.
LEFT MOVING STORMS AND ACTIVITY THAT MOVES N OF THE COLD FRONT
SHOULD WEAKEN...SINCE AIR MASS IS MORE STABLE WITHIN POST FRONTAL
ENVIRONMENT.
..PETERS.. 05/10/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...FWD...EWX...SJT...
30709700 30509754 30519854 30809884 31339853 31529821
31659661 31549624 31009640
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