Area Forecast Discussion
Issued by NWS Jacksonville, FL

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FXUS62 KJAX 240221
AFDJAX

Area Forecast Discussion
National Weather Service Jacksonville FL
921 PM EST Mon Jan 23 2017

.UPDATE...Windy conditions at times through the late tonight as
pressure gradient remains rather tight from the low pressure
system off the MID ATLC coast. Latest estimates this evening
of 988 mb low pressure east of the VA coast. The combination of
pressure rises of 2-3 mb and tight gradient results in the 15-20
mph winds with occasional gusts of up to 30 mph at 9 pm...mainly
over the east and northeast zones. Skies are just now mostly clear
over nearly all land zones as the last of the low clouds moves
southeast into the coastal waters. Models suggest some low clouds
still possible over the northwest zones late tonight but strong
subsidence on the back side of the strong mid/upper level trough
should prevent much of anything beyond midnight from entering our
area. No big changes for min temps in the lower to mid 40s except
for some upper 40s near the coast due to winds being elevated.

&&

.AVIATION...VFR will prevail through Tuesday. West winds 10-15 knots
and gusty will continue to subside overnight. There is a chance
of LLWS for terminals tonight depending on how fast low level
airmass decouples. For Tuesday...westerly near 10 kt.

&&

.MARINE...Strong offshore winds will continue tonight with SCA
nearshore and Gale offshore. Based on guidance and observations
extended the SCA a few more hours for nearshore and included SCA
for offshore waters for Tuesday morning and early aftn...with
winds sharply dropping off Tuesday afternoon.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  44  66  43  74 /   0   0   0   0
SSI  47  66  49  70 /   0   0   0   0
JAX  47  69  46  74 /   0   0   0   0
SGJ  47  69  48  74 /   0   0   0   0
GNV  45  70  43  75 /   0   0   0  10
OCF  46  70  45  76 /   0   0   0   0

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...None.
GA...None.
AM...Small Craft Advisory from 4 AM to 3 PM EST Tuesday 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.

     Gale Warning until 4 AM EST Tuesday 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 until 8 AM EST Tuesday 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/Wolf/Peterson



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