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

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177
FXUS64 KLIX 252112
AFDLIX

Area Forecast Discussion
National Weather Service New Orleans LA
412 PM CDT Sun Jun 25 2017

.SHORT TERM...
Drier air from a cold front is across most of the area today as it
slowly cross the central Gulf Coast. Showers and storms have just
been across southernmost parts of Louisiana this afternoon.
Building high pressure at the surface behind the cold front will
result in low rain chances through Tuesday. Showers and storms
will really only be possible near the coast and offshore waters.
Temperatures should drop into the 60s across northern and interior
portions of the area the next two nights.

.LONG TERM...
Onshore flow returns Wednesday and with it more moisture, showers
and storms. Late week 500 mb flow retreats to the north and
generally high pressure aloft builds over the area. Diurnal
storms though will still be possible each day and mainly be
sea/lake breeze driven.

Krautmann

&&

.AVIATION...

Scattered convection was located mainly south of the New Orleans
metro area with close proximity to KHUM. This trend will continue
through 23z. Will maintain VCTS most taf sites and use a tempo group
for storms at KHUM through 22z. VFR conditions will be the
prevailing condition for much of the overnight hours tonight, but
could see some visibility restrictions late as fog is possible with
all of the moisture remaining on the surface. 18

&&

.MARINE...
Light northeast winds this afternoon will increase tonight into
Monday as a cold front should edge into the northern gulf. The
frontal zone may stall along the Louisiana coast keeping sh/ts
chances for most coastal waters through the period. The best
improvement in sh/ts conditions should be found east of the Miss
River starting tonight through Tuesday morning. The dissipating will
then be forced northward as southerly fetch will once again envelop
all the coastal waters. 18

&&

.DECISION SUPPORT...

DSS code: Blue.
Deployed: None.
Activation: None.
Activities: Monitoring Hydro/Convective trends

Decision Support Services (DSS) Code Legend
Green  = No weather impacts that require action.
Blue   = Long-fused watch, warning, or advisory in effect or
         high visibility event.
Yellow = Heightened impacts with short-fused watch, warning or
         advisory issuances; radar support.
Orange = High Impacts; Slight to Moderate risk severe; nearby tropical
         events; HazMat or other large episodes.
Red    = Full engagement for Moderate risk of severe and/or
         direct tropical threats; Events of National Significance.

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  65  87  67  88 /  10  10  10  20
BTR  68  88  69  89 /  20  10  10  20
ASD  67  88  67  88 /  20  20  10  30
MSY  72  88  72  88 /  30  20  10  30
GPT  70  86  70  87 /  20  20  10  30
PQL  68  87  66  88 /  30  20  10  20

&&

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

$$



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