Severe Thunderstorm Warning 99, NWS San Angelo, TX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
157 PM CDT TUE MAY 26 1998

FLAT UPPER LEVEL RIDGE ALONG THE GULF COAST WILL BUILD INTO TX
THROUGH THURSDAY...WITH CORRESPONDING INCREASES IN 1000-500 MB
THICKNESSES. THE TRAIN OF WEAK SHORT WAVE TROFS EMBEDDED IN THE
SOUTHWEST FLOW THE PAST 2 DAYS WILL SHIFT NORTH OF WC TX...BUT
SOUTHEAST LOW LEVEL FLOW WILL CONTINUE TO SUPPORT 60+ DEGREE
DEWPOINTS THE NEXT 2 DAYS.

BEST RAIN CHANCE WILL BE THIS EVENING. 18Z ADAP ESTIMATED LIFTED
INDICES WERE -10 TO -12C OVER THE WESTERN 1/3 OF WC TX. THIS AREA IS
WEAKLY CAPPED AND EXPECT STORMS IN THIS REGION INITIALLY DESPITE
RELATIVELY WEAK CONVERGENCE. JTN PROFILER SHOWS UNIMPRESSIVE SPEED
SHEAR...SUGGESTING SLOW MOVING PULSE-TYPE STORMS.

TEMPERATURES TRICKY WITH POTENTIAL STORM OUTFLOW AND DAYTIME HAZE.
GOOD CONSENSUS AMONG THE CONSERVATIVE FAN/FWC GUIDANCE...SEE NO
REASON TO DEVIATE SIGNIFICANTLY.

ABI 065/091 21
SJT 065/092 21
JCT 067/092 1-

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