Monday, October18, 2021
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Marine Weather and Tides
Crescent Beach, FL

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:27AMSunset 6:52PM Monday October 18, 2021 3:16 PM EDT (19:16 UTC) Moonrise 5:09PMMoonset 4:32AM Illumination 94% Phase: Waxing Gibbous; Moon at 13 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ454 Expires:202110182130;;877576 Fzus52 Kjax 181256 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 856 Am Edt Mon Oct 18 2021 Atlantic Coastal Waters From Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves, Along With The Occasional Height Of The Average Highest 1/10 Of The Waves. Amz450-452-454-182130- 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- 856 Am Edt Mon Oct 18 2021
Rest of today..Northeast winds 10 to 15 knots. Seas 3 to 5 feet with a dominant period 7 seconds. A moderate chop on the intracoastal waters.
Tonight..Northeast winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 7 seconds. A light chop on the intracoastal waters.
Tuesday..East winds 10 knots. Seas 2 to 3 feet with a dominant period 7 seconds. A light chop on the intracoastal waters.
Tuesday night..East winds 5 to 10 knots. Seas 2 to 3 feet. Mostly smooth on the intracoastal waters.
Wednesday..East winds 5 to 10 knots. Seas 2 to 3 feet. A light chop on the intracoastal waters.
Wednesday night..Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Thursday..Southeast winds 5 to 10 knots. Seas 2 feet.
Thursday night..South winds 10 knots becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet.
Friday..Southwest winds 5 to 10 knots becoming south in the afternoon. Seas 2 feet. Slight chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 856 Am Edt Mon Oct 18 2021
Synopsis.. High pressure will build north of the local waters today through Tuesday, then shift offshore of the southeast atlantic coast Wednesday. A coastal trough will form offshore of the local coast Thursday in advance of an approaching cold front. The front will approach from the west into the weekend.
Gulf stream.. The approximate location of the west wall of the gulf stream as of oct 16, 2021 at 1200 utc... 33 nautical miles east northeast of flagler beach. 40 nautical miles east of saint augustine beach. 55 nautical miles east southeast of jacksonville beach. 68 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Crescent Beach, FL
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location: 29.72, -81.24     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 181720 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 120 PM EDT Mon Oct 18 2021

AVIATION. [Through 18Z Tuesday]

VFR prevails. Abundant high clouds expected to continue over the region through tonight then diminish a bit on Tuesday. Scattered locally broken cumulus and stratocumulus near 3000-4500 ft expected to persist a few hours this afternoon affecting JAX, CRG, VQQ, SGJ, and perhaps near GNV, and then expecting these clouds again on Tuesday, but MVFR ceiling chance much too low to mention in the TAFs. Sfc winds will be northeast 5-10 kt rest of this afternoon and on Tuesday after 14Z- 15Z.

PREV DISCUSSION [925 AM EDT].

NEAR TERM [Through Tonight].

Synopsis . Dry conditions continue with seasonably cool temperatures.

Surface high pressure across the lower MS River Valley will shift east across SE GA through tonight while high cirrus clouds infiltrate from the west with the approach of an upper level short wave trough moving west across the Gulf Coast States. As the surface ridge settles across the local area, NNW winds this morning will transition to ENE into the afternoon, with weaker speeds compared to yesterday near 10-15 mph at the coast with gusts near 15-20 mph through late afternoon. Low level moisture will increase from the east into the afternoon with some stratocumulus advecting onshore across Flagler-St. Johns- Putnam counties into the evening. High cloudiness will decrease overnight with near calm winds inland and dry air enabling inland lows to fall into the mid/upper 40s across inland SE GA to the 50s south of the I-10 corridor to the low 60s toward the Atlantic coast where light onshore flow and passing stratocumulus will continue across NE FL coastal counties.

SHORT TERM [Tuesday Through Wednesday].

Fair weather will continue through midweek with dry, stable air and weak ridged flow aloft. The surface high beneath ridge aloft will slowly migrate from the southern Appalachians into the Atlantic by Wednesday. With the high centered to the north then northeast of the area, onshore flow will persist with a weak coastal trough developing Wednesday. Scant moisture and subsidence will limit any shower chance with the coastal trough but flat cumulus is likely along the coast. Temperatures will moderate with return flow through Wednesday. Highs will return to normal by Tuesday and warm a few degrees further on Wednesday, with mid to upper 80s inland and low 80s along the coast.

LONG TERM [Thursday Through Monday].

Increasing cloud cover is expected by Thursday as a weak short wave lifts out of the GOMEX and across the area. Limited, but increasing, moisture will be in place as the energy shifts overhead, so rain chances remain below mentionable at this point on Thursday. Flow will become more southwesterly as low ridge shifts well off into the Atlantic and another cold front approaches the southeastern states. The parent closed upper low the front is coupled with will become an open wave and eject northeastward as the front make inroads into SE GA Friday morning. Moisture will recover some before the front reaches the area, with ensemble guidance agreeing on PWATs 1.5-1.75", but as forcing lifts away convergence will weaken along the front, limiting chances for showers and thunderstorms. That said, kept slight chances in for now with better chances over the Atlantic for now. Because the front loses steam it may slow or stall over the area until Saturday morning before a secondary front presses through. Ahead of the front temperatures will remain in the mid to upper 80s then cool back toward the upper 70s and low 80s as the next dry airmass filter in over the weekend.

MARINE.

High pressure will build north of the local waters today through Tuesday, then shift offshore of the southeast Atlantic coast Wednesday. A coastal trough will form offshore of the local coast Thursday in advance of an approaching cold front. The front will approach from the west into the weekend.

Rip Currents: Moderate risk today and Tuesday with onshore flow and elevated surf of 2-4 ft.

FIRE WEATHER.

Dry air will remain entrenched across the area today. Afternoon humidities will be lowest across southeast GA, around 30-35%. Dispersion will be highest along the coast and northeast FL where northeast transport flow will be strongest, around 12-15 mph. Areas of high dispersion are likely across the Ocala NF. Easterly, onshore flow will lead to gradual moistening and warming Tuesday and Wednesday.

HYDROLOGY.

Minor river flooding continues along the Altamaha River basin.

PRELIMINARY POINT TEMPS/POPS.

AMG 45 79 52 81 59 / 0 0 0 0 0 SSI 57 78 64 81 66 / 0 0 0 0 0 JAX 54 81 63 83 64 / 0 0 0 0 0 SGJ 63 81 67 82 67 / 0 0 0 0 0 GNV 55 83 58 85 61 / 0 0 0 0 0 OCF 56 84 60 86 64 / 0 0 0 0 0

JAX WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GTXF1 - Guana Tolomato Matanzas Reserve, FL 4 mi92 min NE 4.1 77°F 1021 hPa61°F
SAUF1 - St. Augustine, FL 10 mi17 min NE 9.9G12 74°F 78°F1019.6 hPa (-1.5)56°F
41117 21 mi47 min 75°F 80°F4 ft
BKBF1 40 mi47 min 74°F 1020.1 hPa
LTJF1 47 mi47 min 73°F 55°F
JXUF1 48 mi47 min 79°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 48 mi47 min NE 8.9G13 73°F 78°F1020.6 hPa
BLIF1 49 mi47 min ENE 8G11 74°F 1020.3 hPa57°F
DMSF1 49 mi47 min 78°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL18 mi21 minNE 910.00 miA Few Clouds78°F58°F50%1019.7 hPa

Link to 5 minute data for KSGJ

Wind History from SGJ (wind in knots)
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2 days agoNE8NE4NE6NE6NE6NE30000000W4W5W6W4W7W9W9NW5W64NW4

Tide / Current Tables for St. Augustine Beach, Florida (2)
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St. Augustine Beach
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Mon -- 01:07 AM EDT     -0.35 feet Low Tide
Mon -- 05:32 AM EDT     Moonset
Mon -- 07:14 AM EDT     4.62 feet High Tide
Mon -- 07:29 AM EDT     Sunrise
Mon -- 01:29 PM EDT     -0.24 feet Low Tide
Mon -- 06:08 PM EDT     Moonrise
Mon -- 06:50 PM EDT     Sunset
Mon -- 07:39 PM EDT     4.63 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for St. Augustine Beach, Florida
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St. Augustine Beach
Click for Map
Mon -- 01:01 AM EDT     0.67 feet Low Tide
Mon -- 05:32 AM EDT     Moonset
Mon -- 07:16 AM EDT     5.47 feet High Tide
Mon -- 07:29 AM EDT     Sunrise
Mon -- 01:24 PM EDT     0.66 feet Low Tide
Mon -- 06:08 PM EDT     Moonrise
Mon -- 06:50 PM EDT     Sunset
Mon -- 07:36 PM EDT     5.46 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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