Sunday, October25, 2020
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Marine Weather and Tides
Marineland, FL

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
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.

Sunrise 7:32AMSunset 6:45PM Sunday October 25, 2020 10:06 PM EDT (02:06 UTC) Moonrise 2:57PMMoonset 1:09AM Illumination 69% Phase: Waxing Gibbous; Moon at 9 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:202010260930;;842220 Fzus52 Kjax 260112 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 912 Pm Edt Sun Oct 25 2020 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. Amz450-452-454-260930- 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- 912 Pm Edt Sun Oct 25 2020
Tonight..Northeast winds 5 to 10 knots becoming north late in the night. Seas 3 to 4 feet with a dominant period 12 seconds. Mostly smooth on the intracoastal waters. Areas of fog after midnight.
Monday..Northeast winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 12 seconds. A moderate chop on the intracoastal waters.
Monday night..Northeast winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet with a dominant period 5 seconds. A light chop on the intracoastal waters. Slight chance of showers.
Tuesday..East winds 5 to 10 knots. Seas 2 to 3 feet. A light chop on the intracoastal waters. Slight chance of showers in the morning, then chance of showers in the afternoon.
Tuesday night..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Mostly smooth on the intracoastal waters. Slight chance of showers in the evening.
Wednesday..Southeast winds 5 to 10 knots. Seas 3 to 4 feet. A light chop on the intracoastal waters. Chance of showers and slight chance of Thunderstorms.
Wednesday night..South winds 10 to 15 knots. Seas 3 to 4 feet. Slight chance of showers and Thunderstorms.
Thursday..South winds 10 knots. Seas 3 to 4 feet. Slight chance of showers and Thunderstorms.
Thursday night..Southwest winds 10 to 15 knots. Seas 3 to 4 feet. Chance of showers and slight chance of Thunderstorms.
Friday..West winds 10 to 15 knots becoming northwest 10 knots in the afternoon. Seas 2 to 3 feet. Chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 912 Pm Edt Sun Oct 25 2020
Synopsis.. A cold front will move into the region early Monday, then move north as a warm front Monday night and Tuesday. Winds will shift to the southeast Tuesday night and Wednesday as tropical cyclone zeta passes west of the region near the florida panhandle. Winds will become more southerly into Thursday ahead of an approaching cold front that will move over the area waters on Friday with winds becoming northerly behind the front as high pressure builds north of the waters.
Gulf stream.. The approximate location of the west wall of the gulf stream as of oct 24, 2020 at 1200 utc... 56 nautical miles east of flagler beach. 56 nautical miles east northeast of saint augustine beach. 58 nautical miles east of jacksonville beach. 77 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Marineland, FL
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location: 29.63, -81.21     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 260102 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 902 PM EDT Sun Oct 25 2020

. AREAS/WIDESPREAD DENSE FOG POSSIBLE EARLY MONDAY MORNING .

UPDATE.

Weak pressure gradient exists this evening with high pressure a frontal boundary located over the Carolinas at this time, but poised to push southward into the region on Monday. Weak inverted sfc trough inland associated with the sea breeze and will dissipate this evening. Some scattered cumulus are inland but should slowly fade overnight. Current conditions are still quite supportive of areas to widespread fog with light winds and dry air aloft, per water vapor imagery, allowing nearly ideal radiational cooling. Have tweaked lows down about 1-2 degrees and generally kept the areas to widespread fog in place tonight and Monday morning. A dense fog advisory (visibility 1/4 mile or less) may eventually be required late tonight but too soon to decide on the zones that would be needed. Rest of the forecast on track.

MARINE.

Current forecast was on track, with a light northeast flow and elevated seas primarily due to the easterly swell component. No significant changes needed.

PREV DISCUSSION [757 PM EDT].

NEAR TERM [Through Tonight].

A weak east coast seabreeze that allowed a few widely scattered showers earlier today along the coast from Brunswick southward to Fernandina Beach has pushed west of the I-95 corridor, but much drier air aloft will extinguish further chances of showers into the evening. Our temperatures have risen above seasonal values in the low 80s along the coast and even warmer into the mid to upper 80s west of I-95. Skies will be partly cloudy with light west to NW winds inland and light easterly winds behind the Atlantic seabreeze east of I-95 through sunset.

Tonight, a weak pressure gradient in place south of a frontal boundary will keep winds light in the boundary layer and these conditions coupled with subsidence aloft and much drier air aloft will allow temperatures to quickly cool under mostly clear skies with widespread foggy conditions developing for most of the area. The fog could reduce visibility to a quarter mile or less with very low ceilings developing along with the fog towards dawn. Low overnight temperatures will be in the low 70s along the immediate coast with mid 60s over inland SE GA and mid to upper 60s over inland NE FL with upper 60s to near 70 readings around Jacksonville.

SHORT TERM [Monday Through Tuesday Night].

Mid/upper level ridging will build eastward over the region from the west Monday through Tuesday night. Meanwhile, Tropical Storm Zeta will move north NW from the near the NE Yucatan Peninsula into the southern Gulf of Mexico clockwise around the southern extent of this ridge. The ridging will help keep most of our area dry with a few isolated showers possible over north central FL while shower chances increase on Tuesday as southerly flow above the surface delivers tropical moisture over the region with Precipitable water values approaching 2.0 inches in contrast to Monday's moisture levels only ranging from 1.0 and 1.3 inches. Light onshore winds from the east will prevail during the period as high pressure stay north of the region.

Temperatures will be above seasonal values during this period with highs into the 80s and lows ranging from the mid 60s over inland SE GA to the upper 60s and low 70s over NE FL.

LONG TERM [Wednesday Through Sunday].

On Wednesday, mid/upper level cut off low will move east from the Southern Plains towards the Mid MS valley and merge Zeta into a surface cold front that will move through the Deep South. Ridging over the region shifts eastward with deep southerly flow reigning in tropical moisture over the area. The core of the deep tropical moisture will be displaced just NW of the area Wednesday into the day Thursday and have scattered showers and widely isolated storms chances in place through Thursday for now. The cold front will arrive on Friday with scattered showers and a few embedded storms possible before cooler, drier air filters into the region late Friday into the weekend.

Highs will still be above normal through Thursday evening, peaking in the mid-upper 80s, dipping to the upper 60s-low 70s overnight. Near normal temperatures will follow behind the front and daytime temperatures will return back into the 70s with overnight lows back in the mid 50s inland to the low to mid 60s at the coast through next weekend.

AVIATION. [Through 00Z Tuesday]

VFR this evening with some local areas of sct035-045 clouds left- over from the daytime heating. Isolated small showers formed along the sea breeze this afternoon and early evening and will soon dissipate as well. Light winds, a moist lower atmosphere, and dry conditions aloft will bring a good chance of a widespread fog event late tonight and Monday morning. Some lingering cumulus clouds this evening may slow surface cooling but still expect fog and low stratus clouds to form after about 07Z-08Z. Further deteriorating conditions by 10Z with forecasts of LIFR and VLIFR developing, with exceptions being at KSGJ and KSSI where slightly more optimistic at IFR to MVFR. Cigs/vsbys will improve between 13Z-15Z Monday, but with moist northeast to east flow and daytime heating a period of MVFR cigs at 1500-3000 ft seems likely, with exception at KGNV where we went to VFR by around 14Z-15Z. The highest confidence of MVFR cigs on Monday is at KSSI. Light winds tonight will become northeast around 7-12 kt on Monday.

MARINE.

Long period swells from distant TC Epsilon continue to slowly subside today but lingering 4-6 ft seas offshore this morning will continue Small craft exercise caution conditions there through tonight while combined seas mainly 3-5 ft for the nearshore waters. High pressure will linger north of the waters through Tuesday with onshore NE to E winds around 10 knots and seas falling to 2-4 ft. As high pressure pushes offshore in advance of the approaching cold front Wednesday into Thursday, the winds will turn southeasterly Wednesday and then southerly on Thursday with winds increasing to 10-15 knots and seas becoming 3-5 ft.

Rip Currents: High risk of rip currents continues along the NE FL coast through late Monday. Moderate risk expected for SE GA beaches through Monday.

PRELIMINARY POINT TEMPS/POPS.

AMG 65 82 66 83 69 / 0 0 10 30 10 SSI 69 79 70 79 72 / 0 10 10 30 10 JAX 67 83 71 84 72 / 0 10 10 40 20 SGJ 70 82 73 84 73 / 0 20 20 30 10 GNV 67 86 70 87 71 / 0 10 10 50 20 OCF 68 87 72 89 73 / 0 10 10 40 10

JAX WATCHES/WARNINGS/ADVISORIES. FL . High Rip Current Risk through late Monday night for Coastal Duval-Coastal Flagler-Coastal Nassau-Coastal St. Johns.

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 2 mi82 min E 5.1 79°F 1015 hPa73°F
SAUF1 - St. Augustine, FL 16 mi67 min E 8.9 G 9.9 79°F 80°F1014.5 hPa (+2.0)73°F
41117 26 mi41 min 79°F4 ft

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ormond Beach, Ormond Beach Municipal Airport, FL23 mi3.3 hrsNE 710.00 miPartly Cloudy77°F73°F89%1012.2 hPa
Northeast Florida Regional Airport, FL24 mi11 minE 710.00 miFair78°F73°F85%1015 hPa

Link to 5 minute data for KSGJ

Wind History from SGJ (wind in knots)
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Last 24hrSE6SE6SE3SE4SE3W3CalmCalmCalmCalmCalmCalmE6NE7NE8NE9E8E9E9E9E8E7E8E7
1 day agoE6E7E5SE3CalmCalmCalmCalmCalmCalmCalmE6E6E7E6NE6E7E8E8E9SE8SE12S3SE6
2 days agoW4CalmE8E8E9E8E6E5SE4E8SE8E9SE9E8NE9E13N4----NE6SE6E3E7E9

Tide / Current Tables for Bings Landing, Matanzas River, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Fort Matanzas, Matanzas River, ICWW, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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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
Ground Weather Radar Station Jacksonville, FL
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.