Area Forecast Discussion
Issued by NWS Jacksonville, FL

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FXUS62 KJAX 250137

Area Forecast Discussion
National Weather Service Jacksonville FL
937 PM EDT Sun Sep 24 2017

.UPDATE...Just a few diurnally enhanced showers popped across NE
FL and south of Waycross in SE GA this afternoon as a low level moisture
axis drifted inland and fueled some precip along the east coast sea
breeze. Mostly dry conditions will prevail overnight less a light
coastal shower potentially impacting St. Johns and Flagler county
where convergence and moisture will be deeper as Hurricane Maria
passes hundreds of mile east of the local coast tonight. Low level
winds will gradually back north overnight as Maria begins to
track more to the NNE of the region. Stronger subsidence and drier
air will filter over the area from the north with only passing
high cirrus clouds and some low level cumulus/stratocumulus. Mild
low temperatures will fall into the upper 60s well inland to the
mid 70s along the coast and St.Johns River basin.


.AVIATION...Prevailing VFR conditions overnight and into Monday at
all terminals except for MVFR cigs this evening at SGJ as moisture
with weak trough axis pivot southward down the FL Atlantic coast.
Onshore flow will back slightly northerly overnight night, with a
return of breezy onshore flow along the coast Monday.


.MARINE...Small craft advisory conditions continue over all legs
as combined seas continue to build. Recent 8 pm observations
included 6 ft combined seas with periods of 11 seconds at Grays
Reef Buoy 41008 and seas up to 7 ft at the Fernandina Beach buoy
41112 with periods of near 13 seconds. Winds were NNE 15-20 kts
with gusts up to 25 knots. Current SCA was on track with no
modification planned.

Rip Currents: High Risk through at least Monday. High surf was
reported along the coast today with breakers 5-7 ft with
occasional breakers up to 9 ft. The high surf advisory and high
risk of rip currents will continue through Monday for at least NE
FL beaches as swells continue to impact the local waters.


.HYDROLOGY...Minor river flooding continues during each high tide
cycle from Jacksonville southward to Palatka within the St. Johns
River basin. Farther south down the river toward Welaka and the Ocklawaha
River basin high tide rises into minor and moderate flooding levels.
Strengthening onshore winds may keep the risk of minor to moderate
flooding in place during times of high tide through early this
week. A coastal flood advisory remains in effect for the St. Johns
River basin.

Moderate flooding continues along portions of the Santa Fe and St.
Mary`s Rivers, with minor flooding along the Satilla River east of
Waycross and portions of the Upper Suwannee River north of I-10.


AMG  68  89  68  89 /   0   0   0   0
SSI  74  86  72  87 /   0   0   0  10
JAX  71  88  70  89 /  10   0   0  10
SGJ  77  86  71  87 /  10  10   0  10
GNV  70  90  68  90 /  10  10   0  10
OCF  71  89  69  90 /  10  10  10  10


FL...High Rip Current Risk through Monday evening for Coastal Duval-
     Coastal Nassau-Flagler-St. Johns.

     Coastal Flood Advisory until 8 PM EDT Monday for Clay-Coastal
     Duval-Flagler-Inland Duval-Putnam-St. Johns.

     High Surf Advisory until 8 PM EDT Monday for Coastal Duval-
     Flagler-St. Johns.

GA...High Rip Current Risk through Monday evening for Coastal Camden-
     Coastal Glynn.

AM...Small Craft Advisory until 2 PM EDT Wednesday 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 5 AM EDT 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.



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