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301 
FXUS62 KJAX 220152
AFDJAX

Area Forecast Discussion
National Weather Service Jacksonville FL
852 PM EST Sat Jan 21 2017

...Severe storms possible Sunday...

.UPDATE...This afternoon's squall line weakened when it moved across
the Jax metro area late this afternoon although an outflow produced
a wind gust to 41 mph at the Jax International Airport. There was
lingering non-severe convection that will continue to traverse the I-
10 corridor and move into extreme southeast Ga the next several
hours before fading out after midnight. High-res model (HRRR)
indicating a brief respite from storms after midnight...but more
storms possible by early Sunday morning across the Suwannee Valley 
and inland southeast Ga. This activity will spread east across the 
remainder of the region Sunday as a developing storm system moves 
north of the area and the trailing cold front approaches the area.
SPC continues to have the region in an Enhanced Risk of severe weather 
with damaging winds and isolated tornadoes the main concerns.     

&&

.AVIATION...Scattered showers with a few embedded storms will 
continue to traverse the I-10 corridor this eve bringing ocnl IFR
Vsby from TSR at JAX...VQQ...and CRG til around 03Z. The low level
jet will strengthen overnight, bringing in stratus. MVFR ceilings
are forecast overnight, and then may continue through much of the
day on Sunday. A squall line is forecast to push into the region on
Sunday, possibly near or after the end of the current TAF period.
Winds could gust to 40 mph near the end of the TAF period ahead of
the squall line, with severe gusts along the squall line in the
afternoon.

&&

.MARINE...A strong low level jet will traverse the waters late 
tonight into Sunday as a developing storm system moves well north 
of the waters. A Small Craft Advisory continues in effect for 
the offshore waters and a Gale Watch is in effect for the offshore 
waters beginning 21Z on Sunday and continuing through 04Z on Tuesday. 
A pre-frontal squall line will move across the waters Sunday afternoon.

Rip Currents: A Moderate Risk is expected for Sunday. 

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  64  77  52  63 /  80  90  20  10 
SSI  64  73  55  65 /  70  90  50  10 
JAX  65  80  56  66 /  60 100  40   0 
SGJ  66  80  57  68 /  30 100  70  10 
GNV  65  79  54  66 /  50 100  50  10 
OCF  65  80  56  67 /  30 100  60  20 

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...None.
GA...None.
AM...Gale Watch from Sunday afternoon through Monday evening 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 4 PM EST Sunday 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 10 AM Sunday to 10 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.

&&

$$

PP/ACS/ARS/CA/WC