Severe Storm Outlook Narrative (AC)
Issued by NWS

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
ACUS11 KWNS 260314
SWOMCD
SPC MCD 260314
LAZ000-MSZ000-260445-

MESOSCALE DISCUSSION 0778
NWS STORM PREDICTION CENTER NORMAN OK
1014 PM CDT MON MAY 25 2015

AREAS AFFECTED...EASTERN/SOUTHERN LA INTO SOUTHWEST MS

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 260314Z - 260445Z

PROBABILITY OF WATCH ISSUANCE...80 PERCENT

SUMMARY...A DAMAGING WIND/SOME TORNADO THREAT ASSOCIATED WITH AN
EASTWARD-MOVING SQUALL LINE MAY CONTINUE EAST OF CURRENT TORNADO
WATCHES INTO ADDITIONAL PORTIONS OF EASTERN/SOUTHERN LA AND POSSIBLY
SOUTHWEST MS.

DISCUSSION...SQUALL LINE WITH UPSTREAM HISTORY OF DAMAGING WINDS/FEW
TORNADOES ACROSS SOUTHEAST TX WITH CONTINUE EASTWARD ACROSS LA
THROUGH LATE EVENING/EARLY IN THE OVERNIGHT. HIGHLY ORGANIZED NATURE
OF THE SQUALL LINE/EMBEDDED BOWS WILL CONTINUE TO POSE A DAMAGING
WIND/SOME TORNADO RISK INTO A VERY MOIST/UNSTABLE ENVIRONMENT THAT
EXISTS ESPECIALLY ACROSS SOUTHERN LA. IN THE WAKE OF EARLIER OUTFLOW
AND SHOWERS/THUNDERSTORMS...THE BOUNDARY LAYER HAS LARGELY
STABILIZED FROM NORTHEAST LA INTO MS...BUT THE EXISTING ORGANIZATION
OF THE SQUALL LINE AND A SOUTHWESTERLY LOW-LEVEL FEED OF
MOISTURE/INSTABILITY COULD STILL RESULT IN SOME SEVERE RISK INTO
THESE AREAS.

..GUYER/CORFIDI.. 05/26/2015

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

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

LAT...LON   29789266 32629173 32769099 32069026 30619053 30079022
            29319077 29789266



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.