Area Forecast Discussion
Issued by NWS Jacksonville, FL

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FXUS62 KJAX 271956

Area Forecast Discussion
National Weather Service Jacksonville FL
356 PM EDT Tue Oct 27 2020

.NEAR TERM [Tonight through Wednesday]...Easterly flow will become
southeasterly on Wednesday with our area between high pressure to
the northeast and Tropical Cyclone Zeta moving towards the north
central Gulf. Scattered coastal showers will continue with
isolated inland thunderstorms occurring the afternoon hours mainly
over western zones where instability and moisture will be greater.
Warm and humid conditions will prevail with low temperatures
tonight in the lower 70s and highs Wednesday in the 80s.

.SHORT TERM [Wednesday night Through Friday night]...
TC Zeta will move inland over se Louisiana Wednesday night and
then accelerate ne towards the mid-Atlantic region by late
Thursday ahead of an approaching upper low to the west. Thursday
will be breezy and with near record high temperatures as winds
increase from the southwest ahead of an approaching cold front.
A band of tropical moisture trailing from Zeta will bring a round
of scattered to numerous showers and storms moving from NW to SE
across the region. The timing for the convection should be from
mid-afternoon through the evening hours before pushing into the
Atlantic Thursday night. Some of these storms could be strong with
gusty winds of 40-50 mph the main threat with some brief but heavy
downpours. Clearing and cooler conditions expected Thursday night
as the front exit the area after midnight. A drier and cooler
airmass will advect across the area on Friday with highs
temperatures in the 70s along with lower humidity. Winds will
become onshore and increase Friday night.

.LONG TERM [Saturday Through Tuesday]...Strong high pressure to
the north will continue the breezy northeast flow on Saturday. The
high will move off the east coast Saturday night allowing another
cold front to push across the area on Sunday as an upper trough
amplifies over the eastern U.S. Rainfall chances will remain low
through the period with just a slight chance of showers possible
on Sunday...mainly near the east coast. Another strong high will
build in from the nw early next week continuing the breezy
onshore winds. Temperatures will be seasonal this weekend and then
at or a few degrees below average Monday through Tuesday.


.MARINE...Easterly winds will veer to the se and increase along
with seas through Wednesday as high pressure to the north moves
east and Tropical Cyclone Zeta moves towards the north central
Gulf. Zeta will impact the northern Gulf coast Wednesday night,
resulting in our winds becoming southerly. Remnants of Zeta will
accelerate through the lower Tennessee Valleys on Thursday with a
strong cold front expected to cross our local waters early Friday
morning. Winds will increase from the southwest on Thursday to
near Advisory levels. Winds will then shift to the west and
northwest on Friday and increase from the northeast Friday night
and Saturday. Advisory conditions will likely continue through
the weekend.

Rip Currents: Moderate risk for rip currents at area beaches
through Wednesday due to onshore winds and lingering swells.



AMG  69  87  72  86  58 /  10  20  10  40  10
SSI  72  82  74  87  63 /  10  10   0  20  20
JAX  72  85  73  89  63 /  10  10  10  20  20
SGJ  74  85  74  89  66 /  10  10   0  10  20
GNV  70  88  71  87  62 /  20  20  10  30  20
OCF  72  90  73  89  66 /  20  20  10  20  20


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