SWOMCD
SPC MCD 120417
LAZ000-120545-
MESOSCALE DISCUSSION 0245
NWS STORM PREDICTION CENTER NORMAN OK
1117 PM CDT SUN MAR 11 2012
AREAS AFFECTED...SRN LA
CONCERNING...TORNADO WATCH 72...
VALID 120417Z - 120545Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 72 CONTINUES.
DISCRETE SUPERCELL DEVELOPMENT EAST OF LAKE CHARLES THE PAST HOUR OR
SO APPEARS TO HAVE FORMED NEAR THE CENTER OF AN INLAND
MIGRATING/DEVELOPING MESO LOW. THE POTENTIAL LONGEVITY OF THIS
FEATURE AND THIS ACTIVITY IS UNCERTAIN...BUT CLOUD TOP COOLING
PERSISTS WITH ONGOING CONVECTIVE DEVELOPMENT NEAR COASTAL AREAS TO
THE SOUTH. IT MAY NOT BE OUT OF THE QUESTION THAT FURTHER UPSCALE
CONVECTIVE GROWTH OCCURS ACROSS COASTAL AREAS AND ADJACENT SOUTH
CENTRAL LOUISIANA THROUGH THE 06-07Z TIME FRAME. HOWEVER...VWP DATA
DO APPEAR TO CONFIRM CONSIDERABLE WEAKENING OF SOUTHERLY LOW-LEVEL
WIND FIELDS AND SHEAR. SO THE LINGERING RISK FOR ISOLATED
TORNADOES/DAMAGING WIND GUSTS STILL APPEARS TO BE IN THE PROCESS OF
SLOWLY DIMINISHING. LOCALLY HEAVY RAINFALL ASSOCIATED WITH SLOW
MOVING/PERSISTENT/TRAINING CONVECTION IN THE PRESENCE OF WEAK TO
MODERATE CAPE AND FAIRLY HIGH PRECIPITABLE WATER UP TO 1.75 INCHES
MAY BECOME AN INCREASING CONCERN.
..KERR.. 03/12/2012
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LIX...LCH...
LAT...LON 29689290 30289248 30749193 30849104 30369039 29269080
28669205 28769308 29099340 29689290
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