Marine Weather and Tides
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen
|Sunrise 7:09AM||Sunset 7:30PM||Tuesday September 17, 2019 6:46 AM EDT (10:46 UTC)||Moonrise 8:44PM||Moonset 9:03AM||Illumination 89%|
7 Day Forecast for Marine Location Near St. Augustine, FLHourly EDIT Help
Area Discussion for - Jacksonville, FL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 kjax 170813|
area forecast discussion
national weather service jacksonville fl
413 am edt Tue sep 17 2019
Deep layer ridging will nudge eastward toward the area today and
tonight. As it does so, pw values are forecast to fall below 1.5"
across the area during the day, though overnight they'll increase
back above 1.5" in SE ga and along the eastern seaboard. Dry and
hot conditions are expected during the day, but scattered showers
will be possible overnight, mostly along the SE ga coastline.
Highs today will rise into the mid-upper 90s across the area and
lows tonight will dip into the upper 60s to low 70s.
Backdoor cold front is forecast to push through the forecast area
wed with models in good agreement showing enhanced moisture and
areas of moderate to locally strong convergence. Advertising
chance of showers and a few storms over the ERN zones early part
of the day... Then chance of showers and storms becoming more
focused inland areas as the front pushes to the southwest. Highs
will be upper 80s eastern zones and lower 90s inland under
increasing cloudiness. Wed night... Chance of showers and a few
evening storms mainly inland as winds continue out of the
northeast and east as sfc ridge builds southward over the ERN u.S.
Drier conditions will slowly filter into the area but cannot rule
out a couple of showers being possible after midnight as winds
pick up over the atlantic waters and low level moisture remains
high. Thursday... Sfc high pressure will build southward along the
southeast u.S. Coast while northeast flow continues and supports a
risk of a few showers off the warm atlantic waters. Post-frontal
max temps will be quite lower held in the 80s... With lower 80s
possible for the coastal counties. Best chance of showers will be
from fernandina beach to flagler beach. Breezy northeast winds
expected along the ERN zones up to 15-20 mph, gusting to near
30-35 mph. Thu night... Chance of showers will remain over the ern
parts of the given persistent northeast flow. Breezy conditions
should remain confined for the coastal areas. Lowest min temps
expected to be lower 60s inland southeast ga and ranging to the
70-75 deg range for coastal northeast fl from the onshore flow.
General trend in the guidance is high pressure will build
southward into the area resulting in decrease onshore flow and
gradual increase in MAX temps each day. Best chance for some
coastal showers will be Friday when the east-northeast flow
remains breezy. Otherwise, the air-mass remains dry except for
some low level moisture and an isolated shower or two possible
over the weekend and early next week but most areas will remain
With calm winds, high surface humidity, and clear skies, patchy
fog (mostly MVFR vsbys) will be possible this morning though
around 12z. North winds will begin to increase across the area
around 15z, then winds at sites along the coast will become more
easterly in the afternoon. Winds will calm again overnight and
patchy fog will be possible again, though it would likely be at
the tail end of this TAF cycle.
Northeast winds around 15 knots with gusts to 20 knots will|
persist today over our offshore coastal waters. Though this is
below advisory criteria, waves will be slower to fall and remain
around 6 ft everywhere except our near-shore waters along the
southeast georgia coastline through Wednesday. Winds and seas will
build again Wednesday night and will remain elevated through the
week, so the advisory is likely to continue for the next few days.
Rip currents: the high risk of rip currents is expected to
continue across area beaches through at least tomorrow night.
Offshore seas of around 5-7 ft will persist today, so surf
heights will mostly be around 4-6 ft, below the 7 ft high surf
advisory criteria. Surf heights are expected to increase again
tomorrow into tomorrow night.
Weak high pressure will prevail today with mostly sunny skies and
hotter temperatures and dry conditions producing min rh values
that will range from 30 to 35 percent generally north of i-10 and
west of i-95. High mixing heights today will create some elevated
dispersion values above 75 in some inland areas.
A cold front will shift southward and southwest through the area
on Wednesday, resulting in a chance of showers and thunderstorms.
Winds will shift to the northeast and east as the front pushes
through the area. Breezy winds near 15 mph will develop along the
coastal counties Wednesday afternoon as high pressure builds north
of the area and the front pushes southwest.
Tidal gauges along the st. Johns river continue to show water
levels elevated about 1 ft above predicted tide, reaching into
action stage, but not flood stage. Water levels are expected to
remain elevated with the persistent northeast flow, so have
extended the coastal flood statement through tonight. Chances for
scattered showers will return tomorrow, but widespread rainfall
accumulations will remain low, so there are no additional flood
Preliminary point temps pops
Amg 96 71 90 65 0 0 40 10
ssi 90 75 85 71 0 40 50 10
jax 94 73 88 70 0 10 40 20
sgj 90 74 87 73 0 0 40 30
gnv 95 69 91 69 0 0 40 20
ocf 95 70 92 69 0 0 50 20
Jax watches warnings advisories
Fl... High rip current risk through Thursday morning for coastal duval-
coastal flagler-coastal nassau-coastal st. Johns.
Ga... High rip current risk through Thursday morning for coastal
Am... Small craft advisory until 8 am edt Thursday 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-
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.
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|SAUF1 - St. Augustine, FL||3 mi||47 min||W 6 G 8||75°F||83°F||1013 hPa (-0.0)|
|41117||15 mi||17 min||83°F||6 ft|
|GTXF1 - Guana Tolomato Matanzas Reserve, FL||16 mi||62 min||W 2.9||70°F||1014 hPa||70°F|
|LTJF1||35 mi||47 min||78°F|
|JXUF1||36 mi||47 min||84°F|
|MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL||36 mi||47 min||WNW 5.1 G 6||77°F||84°F||1013.3 hPa (+0.0)|
|BLIF1||37 mi||47 min||W 2.9 G 2.9||77°F||1014 hPa (+0.0)||76°F|
|DMSF1||37 mi||47 min||84°F|
|NFDF1||40 mi||47 min||Calm G 1.9||70°F||1014.8 hPa (-0.3)|
Wind History for I-295 Bridge, St Johns River, FL(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Northeast Florida Regional Airport, FL||6 mi||1.8 hrs||WNW 7||10.00 mi||Fair||0°F||0°F||%||1013.2 hPa|
Link to 5 minute data for KSGJ
Wind History from SGJ (wind in knots)
|1 day ago||NE||NE||NE||N|
|2 days ago||NE|
EDIT Weekend mode (on/off) (on/off)  Help One Week of Data
EDIT (on/off)  Help One Week of Data
Weather Map(on/off)  Help Weather Map
GEOS Local Image of Southeast EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Jacksonville, FL (6,6,7,8)(on/off)  Help
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