SWOMCD
SPC MCD 210748
LAZ000-TXZ000-210845-
MESOSCALE DISCUSSION 0274
NWS STORM PREDICTION CENTER NORMAN OK
0148 AM CST THU FEB 21 2008
AREAS AFFECTED...COASTAL AREAS OF SOUTH CENTRAL/SERN LA
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 210748Z - 210845Z
ISOLATED STRONG TO SEVERE STORMS SHOULD REACH THE COASTAL AREAS OF
SOUTH CENTRAL/SERN LA BY 0830Z.
THIS REGION WILL BE MONITORED FOR A POTENTIAL WW IN 1-2 HOURS AS THE
MARINE BOUNDARY BEGINS TO MOVE INLAND. STRENGTHENING SLY LLJ IS
EXPECTED TO AID IN ADDITIONAL TSTM DEVELOPMENT ALONG THE SRN LA
COASTAL REGION...GIVEN INCREASING WAA. ONCE SURFACE-BASED STORMS
BECOME MORE LIKELY...THEN AN ATTENDANT TORNADO/DAMAGING WIND THREAT
WILL BE POSSIBLE.
REGIONAL RADARS INDICATED A FEW STRONGER TSTMS LOCATED 15-30 MILES
SSW OF THE SOUTH CENTRAL LA COAST...WITH THIS ACTIVITY DEVELOPING
ALONG/JUST N OF MARINE BOUNDARY...WHICH EXTENDED FROM THE FAR NWRN
GULF ESEWD TO THE NORTH CENTRAL GULF. THIS MARINE BOUNDARY IS
FORECAST TO CONTINUE MOVING NWD EARLY THIS MORNING. ALTHOUGH
INSTABILITY IS WEAK N OF THIS BOUNDARY...EFFECTIVE BULK SHEAR OF
40-45 KT INTO SRN LA WILL AID IN MAINTAINING STRONGER ECHOES/
UPDRAFTS. A FEW OF THESE STORMS...SUCH AS THE ONE LOCATED 10 MILES
FROM THE COAST OR 60 SW HUM...MAY POSE AN ISOLATED THREAT FOR HAIL
ALONG COASTAL AREAS OF SOUTH CENTRAL/SERN LA.
.PETERS.. 02/21/2008
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LIX...LCH...
29339400 30199377 30049142 29778981 29418898 28678898
28648988 28859124 28999238
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