A strong pressure gradient was across the area as Tropical Cyclone Eta tracked NW an W across the FL Keys and over the eastern Gulf of Mexico. Strong onshore flow produced wind gusts of 40-50 mph along the coast.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS JAX wrote it up.
A strong pressure gradient was across the area as Tropical Cyclone Eta tracked NW an W across the FL Keys and over the eastern Gulf of Mexico. Strong onshore flow produced wind gusts of 40-50 mph along the coast. Waves of showers continued to move onshore across the local area, with locally heavy rain at times.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jacksonville, FL wrote its last area forecast discussion before the first event at Nov 9, 1:00 PM EST, 2 hours 50 minutes earlier.
Area Forecast Discussion
National Weather Service Jacksonville FL
100 PM EST Mon Nov 9 2020
.AVIATION...
[Through 18Z Tuesday]
MVFR ceilings of 2,000-3,000 feet will prevail through early this
evening at the northeast FL terminals, with periods of heavy
downpours moving across GNV between 19Z-21Z, resulting in periods
of IFR conditions. Otherwise, VFR conditions will prevail at SSI
through around 00Z, with ceilings of 3,000-4,000 feet expected.
Moderate to briefly heavy showers will then pivot northward early
this evening, with MVFR conditions expected to prevail at the
Duval County terminals and SGJ and periods of IFR conditions
possible at these terminals during heavier downpours. Sustained
easterly surface winds of 15-20 knots are expected through 22Z at
the northeast FL terminals, with frequent gusts of 25-35 knots
possible. Sustained east-northeasterly winds around 15 knots are
expected at SSI, with frequent gusts to near 25 knots. Surface
winds will decrease to 5-10 knots at GNV and VQQ and around 10
knots elsewhere after 02Z, but will remain around 15 knots with
higher gusts overnight at SGJ.
&&
.PREV DISCUSSION [1209 PM EST]...
.NEAR TERM [Today Through Tonight]...
Tropical cyclone Eta is located near the FL Keys and tracking
westward early today, while strong, broad high pressure at 1029
mb slowly pushes east today from Delmarva area into the wern
Atlantic. A stronger pressure gradient today, with about a 3-4 mb
difference between SSI and DAB, will result in gradient winds of
about 18 to 25 mph. Gusts of 35-45 mph will be likely along
coastal areas as strong winds aloft move into the region, with
some momentum transfer bringing these gusts to the local area.
Higher threat of the 40 mph gusts generally along the northeast FL
coast. Additionally, stronger gusts will be possible in the
shower activity today with values of about 45-50 mph possible over
northeast FL and coastal southeast GA. Shower activity will
increase from the south as deeper tropical moisture arrives as
PWATs push in excess of 2 inches. Certainly will see some heavier
shower activity with locally heavy rainfall possible with local
flooding possible in poor areas for locations generally southeast
of a JAX to Gainesville line. Mostly cloudy conditions and precip
will keep max temps to about 80 or so.
Tonight...Large area of deep moisture will be over the area with
mean flow continuing easterly at 20-30 kt. High rain chances
expected to continue but slowly tapering off late in the night,
while lifting a little further north, as mean flow veers more to
the southeast into Tue morning. Warmer lows in the lower to
possibly mid 70s due to clouds and elevated sfc winds. Windy
conditions remain along the coast near 20-25 mph in the evening
then subside late in the night.
.SHORT TERM [Tuesday Through Wednesday]...
Winds are expected to shift around to becoming more out of the
southeast-south by Wednesday as high pressure off to the northeast
moves eastward into the Atlantic and Tropical Storm Eta continues
to push its way into the north. Daily bouts of showers and
thunderstorms will continue on through midweek as PWAT values rise
to values above 2.25 inches. Eta is anticipated by the NHC to be
over the eastern Gulf waters during this period, moving northward.
Temperatures will be well above the seasonal average during this
period, with high temperatures rising up into the mid to upper 80s
by Wednesday. Overnight low temperatures will be in the lower to
mid 70s.
.LONG TERM [Thursday Through Monday]...
The forecast for the later part of the week and the weekend is still
somewhat uncertain, with models showing widely varying paths for
Tropical Cyclone Eta. NHC is currently expecting the storm to
travel northward up into Florida, with the trajectory spanning
from the panhandle in the west out to the more central portion of
the Florida peninsula by Friday & Saturday, matching fairly
closely with the ECMWF models. GFS is currently going with a
completely different pattern, with the storm meandering in the
eastern Gulf off the coast of Florida, before moving off further
towards the west and away from Florida. Whatever path Eta
eventually takes, weather for the region is going to continue to
experience bouts of showers and thunderstorms through the end of
the week, with conditions becoming more dry by the end of the week
and beginning of next week. Above average temperatures are
expected to continue on throughout the remainder of the week and
on into the weekend, with temperatures finally starting to cool on
Sunday.
.MARINE...
Gale warnings remain in effect through this evening for all but
the near shore waters adjacent to southeast Georgia. Otherwise,
Tropical Storm Eta is moving over the southeast Gulf of Mexico
and is expected to slow its forward speed through midweek.
Meanwhile, strong high pressure centered along the Mid-Atlantic
coast will weaken slightly and will slide southeastward, becoming
centered near Bermuda towards midweek. Strong onshore winds will
continue through midweek, followed by gradually decreasing winds
and seas late this week. Small Craft Advisory conditions will
continue throughout this week for the offshore waters, with
seas possibly falling back to Caution levels for the near shore
waters adjacent to northeast FL by Thursday night. Otherwise,
Tropical Storm Eta is expected to weaken over the northeast Gulf
of Mexico late this week as a cold front moves into the
southeastern states and stalls to the west of our region during
the upcoming weekend.
Rip Currents: A high risk of deadly rip currents will continue
through at least Tuesday at all area beaches.
&&
.PRELIMINARY POINT TEMPS/POPS...
AMG 72 82 72 84 72 / 40 60 40 50 20
SSI 73 78 73 81 72 / 50 50 50 40 20
JAX 73 82 72 84 72 / 70 60 40 40 20
SGJ 75 82 73 84 72 / 60 60 50 40 20
GNV 73 84 72 85 72 / 40 50 20 50 10
OCF 73 85 73 86 74 / 30 40 20 40 10
&&
.JAX WATCHES/WARNINGS/ADVISORIES...
FL...High Rip Current Risk through late Tuesday night for Coastal
Duval-Coastal Flagler-Coastal Nassau-Coastal St. Johns.
High Surf Advisory until 4 PM EST Tuesday for Coastal Duval-
Coastal Flagler-Coastal Nassau-Coastal St. Johns.
Coastal Flood Advisory until 4 AM EST Tuesday for Coastal
Flagler-Coastal St. Johns.
Wind Advisory until 9 PM EST this evening for Clay-Coastal Duval-
Coastal Flagler-Coastal Nassau-Coastal St. Johns-Inland
Duval-Inland Flagler-Inland Nassau-Inland St. Johns-Putnam.
GA...High Rip Current Risk through late Tuesday night for Coastal
Camden-Coastal Glynn.
AM...Gale Warning until 3 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 from 9 PM this evening to 11 AM EST
Wednesday for Coastal waters from Fernandina Beach to St.
Augustine FL out 20 NM-Coastal waters from St. Augustine to
Flagler Beach FL out 20 NM.
Gale Warning until 9 PM EST this evening for Coastal waters from
Fernandina Beach to St. Augustine FL out 20 NM-Coastal
waters from St. Augustine to Flagler Beach FL out 20 NM.
Small Craft Advisory until 11 AM EST Wednesday for Coastal
waters from Altamaha Sound to Fernandina Beach FL out 20 NM.
&&The national radar mosaic for the moment the first event began.
1 coastal flood. Local standard time, as filed.
Minor tidal flooding was reported in Flagler Beach along portions of South Flagler Avenue.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2020Every state in 2020This day in weather historyWarnings in Florida, November 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 925382.