Area Forecast Discussion
Issued by NWS Lake Charles, LA

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000
FXUS64 KLCH 270903
AFDLCH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
403 AM CDT WED AUG 27 2014

.SYNOPSIS...

A COOL DOME OF HIGH PRESSURE ACROSS MISSOURI RIDGES SOUTHWARD...ITS
OUTER PERIPHERY MARKED BY A STATIONARY FRONT (WHICH EXTENDS FROM
BROWNSVILLE THROUGH THE STRAITS OF FLORIDA).

A SALIENT EASTERLY WAVE (OR INVERTED TROUGH) IS FOUND WITHIN THE
BAROCLINIC ZONE OF THE STATIONARY FRONT . THE
GFS MODEL DEPICTS THIS WESTWARD-MOVING WAVE LANDFALLING NEAR
BROWNSVILLE BY EARLY MORNING THURSDAY.

FURTHER-UP...

A WARM ANTICYCLONE IS FOUND VICINITY THE MIDPOINT OF THE GULF OF
MEXICO NEAR MARINE POINT 25N 92W.

&&

.DISCUSSION...

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY...MAINLY
ALONG AND SOUTH OF THE I-10 CORRIDOR.

A 200-MB SOUTHWESTERLY JETSTREAK (TROPOPAUSE FOLD) MARKS THE OUTER
NORTHWEST PERIPHERY OF THE WARM ANTICYCLONE...CORING THROUGH HOUSTON
THROUGH ALEXANDRIA. CONSEQUENTLY...SOME SHOWERS AND THUNDERSTORMS
COULD BE ON THE STRONG SIDE.

OVER THE NEXT COUPLE OF  DAYS...THE STATIONARY FRONT WILL UNDULATE
POLEWARD AS WEAKER EASTERLY WAVES TRAVEL THROUGH ITS BAROCLINIC ZONE.
THE DRIFTING FRONT WILL REACH A PALACIOS TO TAMPA LINE BY FRIDAY...
BEFORE MOVING ONSHORE THE LOUISIANA COAST BY SATURDAY.

CONSEQUENTLY...SCATTERED SHOWERS AND THUNDERSTORMS WILL PERSIST
...BECOMING MORE NUMEROUS ON SATURDAY.

&&

.OUTLOOK...

THE BERMUDA HIGH PRESSURE SYSTEM WILL RE-ESTABLISHED ITSELF ACROSS
THE WESTERN UPPER GULF COAST STATES ON MONDAY.


&&

.PRELIMINARY POINT TEMPS/POPS...
KLCH  90  76  90  76  89 /  50  20  40  30  30
KBPT  89  77  88  77  87 /  50  30  50  40  30
KAEX  93  73  91  74  90 /  20  20  40  30  30
KLFT  90  75  90  76  90 /  40  20  40  30  30

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
TX...NONE.
GM...SMALL CRAFT ADVISORY UNTIL 6 PM CDT THIS EVENING FOR THE
     FOLLOWING ZONES: WATERS FROM INTRACOASTAL CITY TO CAMERON
     LA FROM 20 TO 60 NM...WATERS FROM CAMERON LA TO HIGH ISLAND
     TX FROM 20 TO 60 NM...WATERS FROM LOWER ATCHAFALAYA RIVER
     TO INTRACOASTAL CITY LA FROM 20 TO 60 NM.

     SMALL CRAFT EXERCISE CAUTION THROUGH THIS AFTERNOON FOR THE
     FOLLOWING ZONES: COASTAL WATERS FROM CAMERON LA TO HIGH
     ISLAND TX OUT 20 NM...COASTAL WATERS FROM INTRACOASTAL CITY
     TO CAMERON LA OUT 20 NM...COASTAL WATERS FROM LOWER
     ATCHAFALAYA RIVER TO INTRACOASTAL CITY LA OUT 20 NM.

&&

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSLAKECHARLES
WWW.TWITTER.COM/NWSLAKECHARLES
WWW.YOUTUBE.COM/NWSLAKECHARLES

&&
JT

$$









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