Area Forecast Discussion
Issued by NWS Jacksonville, FL

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FXUS62 KJAX 200129
AFDJAX

Area Forecast Discussion
National Weather Service Jacksonville FL
929 PM EDT Thu Apr 19 2018

.UPDATE...
Broad mid level trough is over the ern U.S. with general northwest
aloft in the local area. A small plume of moisture is noted in
water vapor along and just ahead of a weak cold front which is
located over far southeast GA and the central panhandle of FL and
is pushing southeastward. Skies will tend to become partly cloudy
or occasional mostly cloudy for a brief time in association with
the front but moisture depth and amount too limited for precip
except for the southeast part where coastal stray shower is
possible Friday morning. Little change for the lows tonight...which
will range from near 50 over nrn zones to the 60-65 deg range
further south and along the coast as winds stay elevated there.
Broad high pressure system at 1033 mb over the central Plains will
allow front to push south of the area by 12z. Increased pressure
gradient behind the front will elevate winds out of the north and
northeast by early morning. Winds of near 15-20 kt with higher
gusts are expected for the coastal zones after 09z...with much
lower winds further inland. Current wind advisory in effect for
coastal areas starting at about 10z looks on target.

&&

.AVIATION...
VFR conditions at this time with west to southwest flow. A cold
front over extreme southeast GA will shift winds to the north and
northeast by Friday morning. Winds will increase late tonight
especially for the coastal TAF sites with winds near 15-20kt and
gusty expected. These gusty northeast winds will continue on
Friday. Clouds will be on the increase at times over the next few
hours with ceilings likely lowering toward MVFR for SGJ Friday
morning. There is a chance of MVFR cigs for rest of the TAFs
(mainly JAX, VQQ, CRG) on Friday but confidence not high enough
at this time to include the current set of TAFs.

&&

.MARINE...West to southwest flow near 10-15 kt will shift around
the northeast and rapidly increase by early Friday morning as the
front pushes through the forecast waters. No major changes made
to the forecast package with SCA set to begin late tonight.
Hazardous winds and seas Friday into Saturday with strongest flow
on Friday with sustained northeast wind near 20-25 kt with
occasional gusts to 35 kt.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  50  71  48  76 /   0   0   0   0
SSI  58  63  56  69 /   0   0   0  10
JAX  60  66  56  72 /   0   0   0  10
SGJ  65  67  59  71 /  10  10  20  20
GNV  60  72  57  75 /   0   0  10  20
OCF  61  74  58  75 /   0   0  10  30

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...Wind Advisory from 6 AM to 10 PM EDT Friday for Coastal Duval-
     Coastal Nassau-Flagler-St. Johns.

GA...Wind Advisory from 6 AM to 10 PM EDT Friday for Coastal Camden-
     Coastal Glynn.

AM...Small Craft Advisory from 2 AM Friday to 3 AM EDT Monday for
     Waters from Altamaha Sound GA to Fernandina Beach FL from
     20 to 60 NM-Waters from Fernandina Beach to St. Augustine
     FL from 20 to 60 NM-Waters from St. Augustine to Flagler
     Beach FL from 20 to 60 NM.

     Small Craft Advisory from 2 AM Friday to 4 AM EDT Saturday for
     Coastal waters from Altamaha Sound to Fernandina Beach FL
     out 20 NM-Coastal waters from Fernandina Beach to St.
     Augustine FL out 20 NM-Coastal waters from St. Augustine to
     Flagler Beach FL out 20 NM.

&&

$$

Shashy/Peterson/Nelson



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