Area Forecast Discussion
Issued by NWS Lake Charles, LA

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000
FXUS64 KLCH 261608
AFDLCH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1108 AM CDT TUE AUG 26 2014

.DISCUSSION...
LOCAL 88DS SHOW WIDESPREAD SHOWERS/FEW STORMS OVER THE COASTAL
WATERS THIS MORNING ASSOCIATED WITH NAGGING WAVE/MID-LEVEL LOW
OVER THE NWRN GULF. HOWEVER VERY LITTLE IF ANY CONVECTION YET
OVER LAND ATTM. BIGGEST QUESTION THIS MORNING IS WHAT TO DO WITH
AFTERNOON POPS AS WATER VAPOR IMAGERY CONTINUES TO SHOW GOOD
MOISTURE IN PLACE ACROSS THE REGION WITH DRIER AIR ALOFT STILL
DISPLACED WELL TO THE EAST...DECIDED TO THROW A SMALL POP BACK
INTO THE NRN LA ZONES AS SUFFICIENT MOISTURE/HEATING SHOULD LEAD
TO AT LEAST A FEW SHOWERS/STORMS LATER. ELSEWHERE JUST MINOR
TWEAKS MADE TO THE GRIDS.

UPDATE OUT SHORTLY.
25

&&

.PREV DISCUSSION... /ISSUED 627 AM CDT TUE AUG 26 2014/

AVIATION...

HIGH PRESSURE RIDGES FROM NEW JERSEY THROUGH NORTHERN ALABAMA ...ITS
OUTER SOUTHERN PERIPHERY MARKED BY A BACKDOOR COLD FRONT WHICH
DRAPES THROUGH THE FLORIDA KEYS TO HOUSTON.

EASTERLY IMPULSES (OR SURGES) ARE PROPAGATING ALONG THE FRONTAL
SURFACE...SETTING OFF SHOWERS AND THUNDERSTORMS ACROSS THE UPPER
TEXAS AND LOUISIANA COASTAL WATERS.

THE MAJORITY OF THE CONVECTIVE ACTIVITY WILL BE FOUND OVER THE
COASTAL MARSHES AND ADJACENT WATERS TODAY.

JT

PREV DISCUSSION... /ISSUED 429 AM CDT TUE AUG 26 2014/

DISCUSSION...RADAR DEPICTING WIDELY SCATTERED SHOWERS AND A FEW
THUNDERSTORMS OVER THE NEAR COASTAL WATERS...WITH JUST A FEW
SHOWERS INLAND AND APPROACHING LOWER ACADIANA. CONVECTION
ASSOCIATED WITH AN EASTERLY WAVE...WITH THE BULK OF TROFFINESS
NOW OVER THE GULF WATERS. OTHERWISE...SATELLITE IMAGERY SHOWING
PARTLY TO MOSTLY CLOUDY SKIES OVER THE REGION. CURRENTLY SEEING
DEWPOINTS AND TEMPERATURES A FEW DEGREES BELOW THAT OF 24 HOURS
PRIOR WITH PASSAGE OF A WEAK SURFACE TROF.

EXPECTING BULK OF PRECIPITATION TODAY TO REMAIN OVER THE NEAR
COASTAL WATERS WHERE MOISTURE WILL REMAIN ABUNDANT. DRIER MID-
LEVEL AIR INCOMING FROM THE EAST TO NORTHEAST WILL OVERLAY THE
INLAND AREA LIMITING CONVECTION.

DAILY CHANCES FOR MAINLY AFTERNOON AND EVENING THUNDERSTORMS WILL
RETURN AREA-WIDE WEDNESDAY AND CONTINUE THROUGH THE FORECAST AS
MID-LEVELS REHUMIDIFY...WHILE SEVERAL SHORTWAVES ADVANCE NORTH
ACROSS THE REGION ON A DEVELOPING SOUTHERLY FLOW. THIS BETWEEN
RE-EMERGING SUBTROPICAL HIGH AND TROF ADVANCING INTO AND THROUGH
THE MID-CONUS.

MARINE...A LIGHT TO MODERATE EASTERLY FLOW CAN BE EXPECTED THROUGH
MID-WEEK IN THE WAKE OF AN EASTERLY WAVE. SCATTERED SHOWERS AND
THUNDERSTORMS WILL CONTINUE AS ABUNDANT MOISTURE REMAINS OVER THE
NORTHWEST GULF. WINDS WILL TREND MORE SOUTHERLY FOR THE LATTER
PART OF THE WEEK AS THE SUBTROPICAL RIDGE BECOMES REESTABLISHED.

&&

.PRELIMINARY POINT TEMPS/POPS...
KLCH  93  75  91  76  91 /  40  10  30  20  40
KBPT  93  77  92  76  92 /  50  20  30  20  40
KAEX  94  71  93  73  93 /  20  10  20  20  30
KLFT  93  75  92  77  92 /  30  10  30  20  30

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
TX...NONE.
GM...NONE.
&&

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&&

$$







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