Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 180631
SWOMCD
SPC MCD 180631
LAZ000-TXZ000-180730-

MESOSCALE DISCUSSION 0353
NWS STORM PREDICTION CENTER NORMAN OK
0131 AM CDT SAT APR 18 2015

AREAS AFFECTED...SOUTHERN LA

CONCERNING...SEVERE THUNDERSTORM WATCH 71...

VALID 180631Z - 180730Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 71
CONTINUES.

SUMMARY...SEVERE POTENTIAL WILL CONTINUE TO DIMINISH OVERNIGHT
ACROSS SOUTHERN LA...WITH ONLY A LIMITED POTENTIAL FOR LOCALLY
DAMAGING WINDS/POSSIBLY SOME HAIL MAINLY IN NEAR-COASTAL AREAS.
SEVERE THUNDERSTORM WATCH 71 WILL LIKELY BE ALLOWED TO EXPIRE AT/BY
07Z...WITH NO ADDITIONAL DOWNSTREAM WATCH ISSUANCES ANTICIPATED
OVERNIGHT.

DISCUSSION...EMBEDDED WITHIN A BROADER CORRIDOR OF STRATIFORM
RAINFALL...THE REMNANTS OF A CONVECTIVE LINE CONTINUE TO PROGRESS
EAST-NORTHEASTWARD ACROSS SOUTH-CENTRAL LA AS OF 615Z/115AM CDT.
RELATED CONVECTIVE OUTFLOW/SURFACE MESO-HIGH HAS EFFECTIVELY
SOUTHWARD-SHUNTED MEANINGFUL SURFACE-ROOTED BUOYANCY TO THE
IMMEDIATE COASTAL AREAS OF SOUTHERN LA. THESE OVERALL TRENDS SUGGEST
THAT...AT MOST...ONLY A LIMITED POTENTIAL EXISTS FOR LOCALLY
DAMAGING WINDS/SMALL HAIL ACROSS FAR SOUTHERN LA. SEVERE
THUNDERSTORM WATCH 71 WILL LIKELY BE ALLOWED TO EXPIRE AT/BY 07Z.

..GUYER.. 04/18/2015

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LIX...LCH...

LAT...LON   29689392 29879372 30349368 30459252 30469176 30339126
            30039087 28859117 29539385 29689392



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