000 
TTAA00 KMAF 301841

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND TX
140 PM CDT THU APR 30 1998

ELEVATED HEAT SOURCE AND INSTABILITY ACROSS TP-REGION PER DECREASING
THETA-E (7H-5H) ALONG WITH 7H-5H TEMP DIFFS OVER 20 DEGREES C ENUF
TO GET WDLY SCT SHRA/TSRA TO DEVELOP...DESPITE MY EARLIER THINKING.
EXPECT ISOLD/WDLY SCT HIGH BASED TYPE SHRA/TSRA TO PERSIST ACROSS
MAINLY THE MTNS THRU MAX HEATING AND INTO EARLY EVENING SIMILAR TO
YESTERDAY. ELSEWHERE E OF THE MTNS CU AT AROUND 9KFT AGL INDICATES
SKANT MSTR IN PLACE WITH ANOTHER QUIET NIGHT IS EXPECTED. HIGH
AMPLITUDE PATTERN REMAINS IN PLACE ALOFT WITH UPPER LOW IN MO TO
FINALLY MOVE E THRU THE FP AS STRONG SHRTWV DROP SE IN THE NW FLOW
ASSOCD WITH WRN UPPER RIDGE. ANOTHER WARM DAY TMW WITH CONTINUED
THCK RISES AND LOW LEVEL THERMAL RIDGE JUST W. SLY FLOW DEVELOPS
ALONG THE GULF BY TMW MORNING...HOWEVER IT WON'T HAVE MUCH CHANCE TO
GET BACK INTO W TX SO ANOTHER WARM/DRY DAY. COLD FRONT TO MOVE INTO
THE AREA SATURDAY...POSSIBLY SOME POST FRONTAL MSTR BUT WLY FLOW TO
KEEP PRE-FRONTAL MSTR E. WZIS.

MAF 53/93 0/0
CNM 51/93 -/0
MRF 43/80 20/0
P07 55/92 20/0

GPM/SVG