Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 301836
SWOMCD
SPC MCD 301835
MSZ000-LAZ000-301930-

MESOSCALE DISCUSSION 0514
NWS STORM PREDICTION CENTER NORMAN OK
0135 PM CDT SAT APR 30 2016

AREAS AFFECTED...SOUTHERN LOUISIANA

CONCERNING...SEVERE THUNDERSTORM WATCH 131...

VALID 301835Z - 301930Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 131
CONTINUES.

SUMMARY...A LINE OF THUNDERSTORMS CAPABLE OF ISOLATED SEVERE WIND
GUSTS AND A TORNADO OR TWO WILL CONTINUE TO SLOWLY MOVE EAST THROUGH
THE AFTERNOON.

DISCUSSION...A LINE OF THUNDERSTORMS CONTINUES TO MOVE SLOWLY EAST
ACROSS SOUTHERN LOUISIANA WITHIN AN ENVIRONMENT CHARACTERIZED BY
DEEP-LAYER SHEAR BETWEEN 40-50 KTS AND MIXED-LAYER CAPE VALUES
AROUND 1000 JOULES PER KILOGRAM. THE COMBINATION OF CAPE AND
DEEP-LAYER SHEAR WILL CONTINUE TO SUPPORT THUNDERSTORM ORGANIZATION
THROUGH THE AFTERNOON. AN ISOLATED SEVERE THUNDERSTORM WIND GUST
CANNOT BE RULED OUT WITH THE STRONGEST THUNDERSTORM CORES.

DESPITE THE MODEST LOW-LEVEL WIND SPEEDS...RECENT VAD WIND PROFILES
FROM KLIX INDICATE ENOUGH VEERING WITH HEIGHT WITH THE LOW-LEVEL
WIND FIELD TO SUPPORT BRIEF/TRANSIENT SUPERCELL STRUCTURES WITHIN
THE OVERALL THUNDERSTORM LINE. THESE FEATURES MAY ACT TO ENHANCE THE
LOCAL WIND DAMAGE THREAT...AND/OR RESULT IN A BRIEF
TORNADO.

..MARSH.. 04/30/2016

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

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

LAT...LON   28598941 28719098 28759115 29309287 29919245 30979180
            31219158 31329147 31359130 31359055 30038886 30008883
            29848882 29158901 28638919 28608931 28598941 28598941



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