Posted by JAC on 4/27/2009, 10:11 am, in reply to "Strengthening MCS Bowing-Out thru Texas"

MESOSCALE DISCUSSION 0598 NWS STORM PREDICTION CENTER NORMAN OK 0859 AM CDT MON APR 27 2009 AREAS AFFECTED...PARTS OF CENTRAL AND ERN TX CONCERNING...TORNADO WATCH 198... VALID 271359Z - 271530Z THE SEVERE WEATHER THREAT FOR TORNADO WATCH 198 CONTINUES. SEVERE/LIMITED TORNADO POTENTIAL CONTINUES WITH WW 198...WITH BROKEN LINE OF STORMS CROSSING PARTS OF CENTRAL AND ERN TX. STORMS CONTINUE MOVING EWD/SEWD ACROSS WW 198...WITH STORMS OVER SWRN PORTIONS OF THE WATCH BEING UNDERCUT BY SWD-MOVING OUTFLOW. NERN PORTIONS OF THE LINE -- MOVING TOWARD NERN TX -- REMAIN MORE SURFACE-BASED...WITH A COUPLE OF SMALL-SCALE BOWING SEGMENTS EVIDENT ATTM. THIS LINE OF CONVECTION -- AND A LIMITED SEVERE/TORNADO POTENTIAL -- WILL LIKELY CONTINUE OVER THE NEXT FEW HOURS. WHILE...INSTABILITY IS SOMEWHAT LIMITED AHEAD OF THE ONGOING CONVECTION /ROUGHLY 500 J/KG MIXED-LAYER CAPE INDICATED/... MODERATE DEEP-LAYER WIND FIELD REMAINS SUFFICIENT FOR ORGANIZED CONVECTION. AS STORMS APPROACH THE NERN EDGE OF WW 198...A NEW WATCH MAY BE REQUIRED ACROSS NERN TX. ..GOSS.. 04/27/2009