VORTEX STATUS MESSAGE AND FORECAST DISCUSSION NATIONAL SEVERE STORMS LABORATORY 1130 AM CDT FRI MAY 5 1995 OPERATIONAL STATUS AT 1100 CDT: NO OPERATIONS TARGET AREA: N/A SUPPLEMENTAL SOUNDING/ARCHIVE II REQUESTS: NONE DAILY FORECAST DISCUSSION: STG TO A FEW SVR TSTMS DVLPD OVERNIGHT ACRS EXTRM SERN NM IN AREA OF VERY STG ISENTROPIC LIFT AS SEEN BY THE 09Z RUC 304K ANALYSIS. AS OF LATE FRI MRNG RAIN AND TSTMS CONTD FROM THE SRN TX PNHDL SWD TO NEAR MAF. AMS ACRS THE VORTEX AREA REMAINED COOL AND PCPN MOVING IN FROM THE W WILL SERVE TO KEEP IT THAT WAY AS MARITIME AMS REMAINS SUPRESSED TO THE S FOR ANOTHER DAY. JUST S OF THE OPS AREA TSTMS MAY BE SVR THIS AFTN GIVEN HIGHER CAPE ALTHOUGH MESOCYCLONES NOT TOO LIKELY. AS UPR SYS TO THE W NUDGES CLOSER ON SAT THE PROSPECTS OF A SFC BNDRY FROM THE TX/NM BORDER NWD INTO EXTRM SW KS INCRS. BY LATE SAT AFTN AFTER 24 MORE HRS OF STG SE TO S LOW LVL FLOW WOULD ANTICIPATE WARM AND MOIST AMS TO MOVE AS FAR N AS SE CO AND SW KS...UNLESS TSTMS DVLP AGAIN TNGT SOMEWHERE ACRS W TX. ETA 36 HR PROG OF 1500-2000 CAPE INTO THE TX PNHDL LOOKS RSNBL. SINCE DRYLN WILL NOT LIKELY PLOW EASTWARD ON SAT WILL NEED SFC FLOW TO BACK WELL INTO A SELY DIR (I.E., 110 TO 140 WOULD BE NICE) TO INCRS LOW LVL CNVGNC AND TO INCRS DIR SHEAR. ONCE AGAIN EXTENDED PROGS OFFER PTNL FOR DAY 3 AS SHRTWV FCST TO KICK OUT ACRS OK SUN AFTN...LEADING TO PSBLY A VERY ACTIVE AFTN OVER A FAIRLY LARGE AREA. HWVR...TODAY WAS A "FVRBL DAY 3" BACK ON WED. STILL WITH LARGE TROF TO THE W ALWAYS SOME PTNL OF WHICH TO REMAIN AWARE. BAKER/KERR PROBABILITIES OF OCCURRENCE IN VORTEX OPS AREA THRU 04Z (DAY1) AND 12-04Z (DAY2)... DAY1 DAY2 LIGHTNING 40 80 SEVERE 20 50 TORNADOES 05 20 TARGETABLE STORM 05 30 FCST STORM MOTION - TARGETABLE STORMS ONLY PRE-SUPERCELL ----- 210/35 SUPERCELL ----- 240/25 FCST INITIATION TIMES (LT) - TARGETABLE STORMS ONLY LIGHTNING ----- 1600 1ST SEVERE RPT ----- 1700 1ST TORNADO ----- 1900