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

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978
FXUS64 KLIX 280545
AFDLIX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1145 PM CST TUE JAN 27 2015

.AVIATION...

DECIDED TO REMOVE MENTION OF IFR OR MVFR CATEGORY VSBYS IN FOG
REMAINDER OF TONIGHT/EARLY WEDNESDAY MORNING SINCE HIGH PRESSURE
IS GRADUALLY BUILDING IN FROM THE NORTH. CLEAR SKIES AND GOOD
VSBYS SHOULD PREVAIL THROUGH WEDNESDAY EVENING...THEN THERE MAY BE
A FEW AIRPORTS WITH SOME FOG LATE WEDNESDAY NIGHT WITH VSBYS
POSSIBLY DROPPING AS LOW AS 1-2 NM. 22/TD

&&

.PREV DISCUSSION... /ISSUED 639 PM CST TUE JAN 27 2015/

SOUNDING DISCUSSION...

THE ATMOSPHERE CONTINUED TO BECOME DRIER TODAY...WITH A DROP IN
PRECIPITABLE WATER FROM 0.55 INCHES AT 12Z TO 0.46 INCHES AT 00Z.
THE SOUNDING ALSO SHOWS A VERY DRY LAYER OF AIR IN PLACE JUST ABOVE
THE SURFACE WHERE DEWPOINTS ARE ON AVERAGE 15 DEGREES LOWER THAN
THE LAUNCH TIME SURFACE DEWPOINT. THIS DRIER AIR EASILY MIXED DOWN THE
SURFACE DURING PEAK HEATING HOURS...ALLOWING DEWPOINTS TO FALL
INTO THE MIDDLE 30S OVER MUCH OF THE AREA THIS AFTERNOON. AN
ELEVATED INVERSION AROUND 700MB AND WEAK LAPSE RATES THROUGHOUT
THE ATMOSPHERIC COLUMN WERE ALSO NOTED. OVERALL...A VERY STABLE
AIRMASS IS IN PLACE.  32

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  68  39  69  44 /   0   0   0   0
BTR  72  42  67  47 /   0   0   0   0
ASD  69  42  62  44 /   0   0   0   0
MSY  67  46  62  49 /   0   0   0   0
GPT  67  43  59  46 /   0   0   0   0
PQL  67  40  61  43 /   0   0   0   0

&&

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

$$







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