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

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FXUS64 KLIX 250525
AFDLIX

AREA FORECAST DISCUSSION
National Weather Service New Orleans LA
1125 PM CST Mon Feb 24 2020

.AVIATION...
Scattered showers continue to move northeast along and southeast
of a KHUM to KASD line. This activity will gradually shift east
over the next several hours, reaching KMOB by 12Z. LIFR conditions
dominating the current hour will likely hold in place through the
rest of the night. After 12Z, visibilities should rise to P6SM
within a couple hours and ceilings will return to VFR as well.
Light winds expected through the TAF period.

&&

.PREV DISCUSSION... /issued 322 PM CST Mon Feb 24 2020/

DISCUSSION...
A low pressure system will be moving through our area today and
Tuesday. Rain chances are higher tonight into the morning hours
tomorrow. Mostly showers are expected with this system with
amounts up to 0.5 inches of rainfall. It will be possible to get a
thunderstorm or two with these storms, if daytime heating or
moisture abundance from the Gulf enhance instability. Overall,
some rainfall and a few thunderstorms are possible with this
system, but nothing severe is expected.

A secondary shortwave frontal system is expected to move through
Wednesday morning. With the passage of the frontal systems by
mid- week, low temperatures are expected to be cooler Thursday and
Friday mornings. Some locations will expect temperatures below or
approaching freezing these mornings due to strong cold air
advection into the area. High pressure will build in over the
area after Wednesday. Upper level convergence will help to promote
a stable atmosphere and sinking air into the environment. As a
result of the more stable air, rain chances will very low
Wednesday through Sunday. MSW

MARINE... Winds will be calm (<15 knots) and southerly through
Tuesday afternoon. Tuesday night through Wednesday morning winds
will be northerly and calm (<15 knots). Wednesday through Thursday
afternoon, winds will be northerly and strong (15-25 knots).
Thursday through Sunday, winds will be calm (<15 knots) and
northerly to northwesterly. Wave heights will correspond to the
winds. MSW

DECISION SUPPORT...
Code Legend
Green  = No weather impacts that require action.
Blue   = Long-fused watch, warning, or advisory in effect or high
         visibility event; Marginal risk severe or excessive rain.
Yellow = Heightened impacts with short-fused watch, warning or
         advisory issuances; radar support for slight risk severe
         or excessive rain.
Orange = High Impacts; Enhanced risk severe; nearby tropical events;
         HazMat or other large episodes.
Red =    Full engagement for Moderate to high risk of severe and/or
         excessive rainfall, or direct tropical threats; Events of
         National Significance.

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  54  66  45  55 /  40   0  10  10
BTR  53  66  46  54 /  40   0   0  10
ASD  57  68  47  58 /  70  10  10  10
MSY  59  66  50  57 /  70  10   0  10
GPT  58  66  48  58 /  70  10  10  10
PQL  59  69  47  62 /  70  20  10  10

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...Dense Fog Advisory until 9 AM CST Tuesday for LAZ040-059>070.

GM...Dense Fog Advisory until 9 AM CST Tuesday for GMZ530-532-534-536-
     538-550-552-555-557.

MS...Dense Fog Advisory until 9 AM CST Tuesday for MSZ080>082.

GM...Dense Fog Advisory until 9 AM CST Tuesday for GMZ532-534-536-538-
     550-552-555-557.

&&

$$



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