Area Forecast Discussion
Issued by NWS Lake Charles, LA

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000
FXUS64 KLCH 171137
AFDLCH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
637 AM CDT WED SEP 17 2014

.AVIATION...

A STATIONARY TROUGH OF LOW PRESSURE STRETCHES FROM COLLEGE
STATION TO JUST OFFSHORE THE MOUTH OF THE MISSISSIPPI RIVER.

NORTHWESTERLY SHORTWAVES ALOFT WILL TRAVEL OVER THE TROUGH...
SETTING OFF SCATTERED SHOWERS AND THUNDERSTORMS. THE HEAVIEST
ACTIVITY WILL BE ALONG THE BEAUMONT TO LAKE CHARLES AIR CORRIDOR.

JT

&&

.PREV DISCUSSION... /ISSUED 445 AM CDT WED SEP 17 2014/

UPDATE...FOG BECOMING AN ISSUE ACROSS PORTIONS OF THE AREA WHERE
SKIES HAVE CLEARED. A DENSE FOG ADVISORY IS IN EFFECT FOR ALONG
AND NORTH OF I-10 THROUGH 9 AM.

MARCOTTE

PREV DISCUSSION... /ISSUED 404 AM CDT WED SEP 17 2014/

DISCUSSION...RADAR NOW ABSENT OF ANY PRECIP INLAND...WITH NO MORE
THAN A FEW SHOWERS OVER THE NEAR COASTAL WATERS. SATELLITE IMAGERY
SHOWING A GOOD BIT OF CIRRUS OVER SOUTH LOUISIANA AND LOWER SOUTHEAST
TEXAS INCOMING FROM THE WEST ASSOCIATED WITH NOW TROPICAL STORM
ODILE OVER THE NORTHERN GULF OF CALIFORNIA. WITH CLEAR TO MOSTLY
CLEAR SKIES OVER CENTRAL LOUISIANA AND INTERIOR SOUTHEAST
TEXAS...BEGINNING TO SEE DEVELOPMENT OF RADIATIONAL FOG...GETTING
AN EXTRA BOOST FROM FROM YESTERDAYS RAINS.

TODAY THROUGH THURSDAY...A SHARP PRECIPITABLE WATER/MOISTURE GRADIENT
WILL REMAIN IN PLACE OVER THE FORECAST AREA. HIGHEST WILL CONTINUE
OVER LOWER SOUTHEAST TEXAS WHERE VALUES ARE PROGGED TO REMAIN NEAR
2.30 INCHES...THEN DOWN TO A MORE NORMAL VALUE OF 1.80 INCHES OVER
EAST CENTRAL LOUISIANA. POPS WILL BE ALIGNED ACCORDINGLY WITH
LIKELY OVER THE SOUTHWEST PORTION OF THE FORECAST AREA...DOWN TO
JUST A CHANCE TO THE NORTHEAST.

MOISTURE LOWERS FOR FRIDAY AND THE WEEKEND ALONG WITH POPS. THIS
AS A MORE NORTHERLY FLOW EVOLVES IN THE MID AND UPPER LEVELS IN
THE WAKE OF SHORTWAVE TROF EXITING EAST OF THE REGION...AND THE
AMPLIFICATION OF THE MID-CONUS RIDGE. EXPECTING NEXT FRONTAL
PASSAGE MONDAY WITH COOLER TEMPERATURES SETTING IN FOR MID-WEEK.

MARINE...A WEAK PRESSURE GRADIENT OVER THE NORTHWEST GULF WILL
MAINTAIN A LIGHT AND SOMEWHAT VARIABLE FLOW OVER THE NEXT FEW
DAYS. WINDS WILL TREND MORE EASTERLY FOR THE LATTER PART OF THE
WEEK IN ADVANCE OF A FRONTAL PASSAGE EXPECTED MONDAY. DEEP
TROPICAL MOISTURE IN PLACE WILL KEEP SCATTERED SHOWERS AND
THUNDERSTORMS OVER THE GULF WATERS TODAY AND THURSDAY...WITH LOWER
RAIN CHANCES THEN RETURNING AS SHARPLY DRIER AIR FILTERS INTO THE
AREA.

&&

.PRELIMINARY POINT TEMPS/POPS...
KLCH  88  72  83  70  89 /  60  20  60  30  40
KBPT  87  73  83  72  88 /  60  30  60  40  40
KAEX  90  71  85  69  91 /  30  20  30  20  30
KLFT  89  73  85  71  89 /  50  20  50  20  40

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...DENSE FOG ADVISORY UNTIL 9 AM CDT THIS MORNING FOR THE FOLLOWING
     ZONES: ACADIA...ALLEN...AVOYELLES...BEAUREGARD...
     CALCASIEU...EVANGELINE...JEFFERSON DAVIS...LAFAYETTE...
     RAPIDES...ST. LANDRY...UPPER ST. MARTIN...VERNON.

TX...DENSE FOG ADVISORY UNTIL 9 AM CDT THIS MORNING FOR THE FOLLOWING
     ZONES: HARDIN...NORTHERN JASPER...NORTHERN NEWTON...
     ORANGE...SOUTHERN JASPER...SOUTHERN NEWTON...TYLER.

GM...NONE.
&&

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&&

$$











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