Area Forecast Discussion
Issued by NWS New Orleans/Baton Rouge, LA

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926
FXUS64 KLIX 140154 AAA
AFDLIX

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE NEW ORLEANS LA
854 PM CDT SAT SEP 13 2014

.UPDATE...
GRIDS AND FORECAST PRODUCTS HAVE BEEN UPDATED TO INDICATE
INCREASED WINDS AND RESULTING EXERCISE CAUTION HEADLINES FOR THE
TIDAL LAKES AND NEAR COASTAL WATERS. IN ADDITION...A STRATUS CLOUD
DECK HAS BEEN EXPANDING ACROSS THE FORECAST AREA IN THE WAKE OF
THE COLD FRONT THAT HAS PUSHED INTO THE COASTAL WATERS. 11

&&

.PREV DISCUSSION... /ISSUED 813 PM CDT SAT SEP 13 2014/

SOUNDING DISCUSSION...

THE 00Z SOUNDING SHOWS DEEP LAYER NORTHERLY FLOW TAKING HOLD OF
THE AREA...WITH ONLY A SMALL REGION OF EASTERLY FLOW NOTED FROM
900MB TO 750MB. SOME DRIER AIR CONTINUES TO ADVECT IN ON THE BACK
OF THIS NORTHERLY FLOW...AND PW VALUES HAVE FALLEN TO 2.0 INCHES
THIS EVENING. WITH THE DRYING ALOFT AND INCREASING SUBSIDENCE...SOME
WARMING WAS NOTED BETWEEN 700MB AND 575MB. BELOW 800MB...SOME
COOLING WAS NOTED AS WEAK COLD AIR ADVECTION ASSOCIATED WITH A
FRONTAL BOUNDARY SLOWLY DRIFTING THROUGH THE AREA TOOK HOLD.
TEMPERATURES HAVE COOLED A GOOD 3 DEGREES AT 950MB...AND WEAK
ELEVATED INVERSION WAS NOTED ON THE SOUNDING. THIS ELEVATED
INVERSION SHOULD STRENGTHEN OVERNIGHT AND BRING A WIDESPREAD LOW
LEVEL STRATUS DECK TO THE AREA BY DAYBREAK. 32

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  66  88  71  90 /  10  20  20  60
BTR  68  89  73  91 /  10  20  20  60
ASD  70  89  74  89 /  20  30  20  60
MSY  76  89  77  90 /  20  30  20  60
GPT  73  89  74  90 /  20  30  20  60
PQL  70  90  72  90 /  20  30  30  60

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
GM...NONE.
MS...NONE.
GM...NONE.
&&

$$







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