SWOMCD
SPC MCD 280428
TXZ000-NMZ000-280630-
MESOSCALE DISCUSSION 1069
NWS STORM PREDICTION CENTER NORMAN OK
1128 PM CDT TUE MAY 27 2008
AREAS AFFECTED...PORTIONS WRN THROUGH CENTRAL TX.
CONCERNING...SEVERE THUNDERSTORM WATCH 382...
VALID 280428Z - 280630Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 382
CONTINUES.
LINEAR MCS -- WITH OCCASIONAL/EMBEDDED LEWP FORMATIONS -- CONTINUES
TO FORWARD-PROPAGATE SEWD ACROSS WW AREA WITH MAIN THREAT BEING WIND
DAMAGE. ISOLATED...MARGINALLY SVR HAIL ALSO IS POSSIBLE WITH
ELEVATED TSTMS THAT MAY CONTINUE TO DEVELOP ACROSS NWRN/WRN PORTIONS
WW -- BEHIND ITS OUTFLOW BOUNDARY.
AS OF 04Z...COMPLEX WAS MOVING ACROSS I-20 CORRIDOR BETWEEN
MWL-ABI...WITH MOST INTENSE PORTION ALONG WRN EDGE AND MOVING SSEWD
TOWARD SJT. WRN SEGMENT MAY REMAIN THAT PORTION MOST CAPABLE OF
SUSTAINED SVR WIND POTENTIAL...BECAUSE OF ITS INTERACTION WITH OLD
OUTFLOW BOUNDARY THAT STILL IS MOVING WWD ACROSS W-CENTRAL TX. LOW
LEVEL CONVERGENCE/ASCENT WILL REMAIN MAXIMIZED ALONG AND JUST E OF
OLDER OUTFLOW BOUNDARY...WHICH EXTENDED FROM JUST W SJT SSEWD-SEWD
ACROSS PORTIONS SCHLEICHER/SUTTON/REAL COUNTIES TO UPPER TX
COAST...AS OF 04Z. STRONGEST STORM-RELATIVE INFLOW WILL CONTINUE
OVER W-CENTRAL TX. SJT VWP SHOWING 2-2.5 KM DEEP SSELY-SLY LLJ OF
35 KT THAT BEGINS WITHIN LESS THAN A HALF KM AGL...AND WHICH IS FCST
TO CONTINUE THROUGH AT LEAST 08Z. PROSPECTIVE INFLOW LAYER WILL
REMAIN FAVORABLY UNSTABLE...WITH MODIFIED DRT/MAF RAOBS AND RUC
SOUNDINGS INDICATING MLCAPES 1000-1500 J/KG AND MUCAPE 1500-2000
J/KG PERSISTING FOR A FEW MORE HOURS.
..EDWARDS.. 05/28/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...FWD...EWX...SJT...LUB...MAF...
32930257 33120186 32990081 32570062 32440013 32469930
32759856 33069798 31119810 30929850 30919895 30509899
30489934 30299936 30290174 30600167 30940190 31070241
31200247 31260274 32090276 32110305 32900304
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