Friday, April10, 2020
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Marine Weather and Tides
Fernandina Beach, FL

Version 3.4
NOTICE
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 7:02AMSunset 7:52PM Friday April 10, 2020 3:39 PM EDT (19:39 UTC) Moonrise 10:03PMMoonset 8:04AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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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AMZ450 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- 243 Pm Edt Fri Apr 10 2020
Tonight..North northeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Inland waters a light chop.
Saturday..East winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a moderate chop.
Saturday night..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 4 seconds. Inland waters a moderate chop.
Sunday..South southeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 6 seconds. Inland waters choppy. A chance of showers and a slight chance of Thunderstorms.
Sunday night..South winds 20 to 25 knots with gusts to around 35 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 7 seconds. Inland waters rough. A chance of showers and Thunderstorms.
Monday..Southwest winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Inland waters a moderate chop. Showers with Thunderstorms likely.
Monday night..West winds 5 to 10 knots. Seas 2 to 4 feet. A chance of showers and a slight chance of Thunderstorms.
Tuesday..North winds 5 to 10 knots becoming east in the afternoon. Seas 2 to 4 feet. A chance of showers and a slight chance of Thunderstorms.
Tuesday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. Showers likely and a chance of Thunderstorms.
Wednesday..Southwest winds around 10 knots becoming west northwest in the afternoon. Seas 2 to 3 feet. Showers and a slight chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 243 Pm Edt Fri Apr 10 2020
Synopsis.. High pressure will build to the northwest of the waters tonight. The high will then move north of the waters Saturday morning and then offshore by Saturday afternoon. A warm front will lift north of the waters Sunday with a strong cold front expected to move through the area waters on Monday with strong to severe storms possible. The front will then stall over the waters on Tuesday with more rain showers expected.
Gulf stream.. The approximate location of the west wall of the gulf stream as of apr 09, 2020 at 1200 utc... 64 nautical miles east of flagler beach. 75 nautical miles east of saint augustine beach. 86 nautical miles east of jacksonville beach. 96 nautical miles east of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Fernandina Beach, FL
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location: 30.67, -81.47     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 101830 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 230 PM EDT Fri Apr 10 2020

. SLIGHT RISK OF SEVERE WEATHER ACROSS SOUTHEAST GEORGIA AND NORTHEAST FLORIDA SUNDAY NIGHT THROUGH MONDAY .

NEAR TERM [Through Tonight].

Regional 17Z surface analysis shows the cold front has exited our area and now stretches across central Florida Behind the front, only isolated light rain showers remain, but breezy winds continue. Deep layer ridging will build through the period in the wake of the front and a cooler air mass will to advect into the area, but these cooler temperatures are being offset a little by daytime heating. Temperatures will be continue to be mostly in the 60s to low 70s throughout the remaining afternoon hours, then drop into the 40s tonight, with low 50s along the coast and in north- central Florida.

SHORT TERM [Saturday Through Sunday].

Saturday will start with a low level ridge centered over the southern Appalachians and mostly zonal flow in place directly aloft of the local area. This ridge will be pushed off the east coast by Saturday night, however, as a mid/upper level +PV anomaly swings from the southwest into the Srn Plains and downstream pressure falls lead to the development of a strong frontal system to our west. With low level high pressure to our northeast, and a tightening pressure gradient from the low pressure system developing in the southern MS Valley, moderate to strong southerly winds will develop across the area starting Saturday night, with especially breezy conditions anticipated in southeast Georgia and along the Atlantic coastline Sunday afternoon. These building southerly winds will lift a warm frontal boundary stretching far out to the east of the system through most of FL by late Saturday night, clearing our GA counties on Sunday. This combination of the warm front and insolation will make for a very warm day with highs in the upper 80s to low 90s Sunday, which will kick off a seabreeze front and give us chances for afternoon showers along the Atlantic coastline. Isolated thunderstorms could produce damaging wind gusts Sunday afternoon with the seabreeze storms and storms in S GA near the warm frontal boundary, but the main threat for severe weather won't move in until late Sunday night as the strong system moves through the southeastern US.

LONG TERM [Sunday Night Through Thursday].

Sunday night . A dry slot moving in ahead of the approaching front so some lull in the convective chances seems apparent early and mid Sunday evening. Models in good consensus showing pre-frontal squall line in association with the cold front approaching the area late evening into the overnight hours and strong LLJ punches into the region. Main differences are with the temporal movement of the squall line. Storm Prediction Center has a portion of our west and northwest zones in the slight risk for through Sunday- Sunday night mainly due to the approaching pre-frontal squall line. Breezy southerly flow anticipated with lows only falling to the upper 60s and lower 70s.

Monday . The pre-frontal squall line and cold front are progged to move east-southeast across the forecast area Monday, though the southeast progression may slow a bit as flow aloft becomes southwesterly.

Monday night through Thursday . Front appears to be slowly stalling over the srn zones and north central FL Monday night while weak disturbances in southwest flow aloft support some low end chance of rain Monday night over srn parts of area. Tue- Wed . guidance is not in very good agreement but suggests the front will move back north as a warm front as a wave of low pressure develops along the front over the ern GOMEX and moves northeast to east. This may bring higher rain chances back over the area Tue-Wed. After Wed night, front will push back southward and drier air settles back into the area as high pressure builds in. Temperatures will remain above normal Monday, and may start trend toward normal Tuesday through Thursday.

AVIATION. [Through 18Z Saturday]

The cold front from this morning has cleared, with only isolated showers at this point in north-central FL. Behind the front VFR conditions are anticipated through the period with gusty winds from the north that will begin to settle down around 00Z. Winds are still anticipated to stay around 5-10 kts overnight, however, which should prevent fog development.

MARINE.

Winds will remain at or below 15 knots through Saturday. Winds then increase to near advisory levels Sunday and to advisory levels Sunday night as the pressure gradient increases ahead of the next system. A front then moves through the area Monday, bringing numerous showers and scattered storms and decreasing gradient winds. The front stalls across the area with rain chances continuing through midweek.

FIRE WEATHER.

A cold front pushed through the area this morning, with very dry conditions behind it today and tomorrow. Afternoon RH values of around 20-30% will be seen across much of the area both days, along with dry fuels. All of our FL ERCs are above 26, though GA fuel moisture is around 10-20%. As for winds, 20 ft winds will remain below red flag thresholds, but transport winds are high enough today to cause dispersion indices above 75 from near Kingsley / Lake City northward. Warm, moist air will lift northward with a warm front on Sunday ahead of a strong frontal system which will also bring the potential for severe thunderstorms Sunday night and Monday.

PRELIMINARY POINT TEMPS/POPS.

AMG 43 78 59 84 70 / 0 0 30 30 70 SSI 53 73 64 78 70 / 0 0 20 30 40 JAX 52 78 64 86 72 / 0 0 0 30 30 SGJ 56 76 64 83 70 / 0 0 0 30 20 GNV 49 81 63 90 70 / 0 0 0 20 30 OCF 51 83 64 91 71 / 0 0 0 20 20

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
FRDF1 - 8720030 - Fernandina Beach, FL 0 mi51 min NW 5.1 G 9.9 75°F 70°F1011 hPa
41112 - Offshore Fernandina Beach, FL (132) 10 mi39 min 70°F2 ft
BLIF1 19 mi57 min WSW 8.9 G 13 68°F 1012.2 hPa52°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 19 mi51 min WSW 9.9 G 11 66°F 67°F1011.5 hPa
DMSF1 20 mi51 min 72°F
LTJF1 20 mi57 min 66°F 47°F
NFDF1 20 mi51 min WSW 7 G 8.9 68°F
SAXG1 - Sapelo Island Reserve, GA 53 mi99 min NNW 11 73°F 1011 hPa (-1.0)44°F
SAUF1 - St. Augustine, FL 57 mi39 min NNW 15 G 17 68°F 68°F1011.6 hPa (-0.6)

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fernandina Beach Municipal Airport, FL4 mi44 minNNW 810.00 miFair72°F46°F41%1010.8 hPa
Jacksonville International Airport, FL17 mi43 minW 610.00 miMostly Cloudy74°F50°F43%1011.1 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL19 mi47 minW 810.00 miMostly Cloudy69°F48°F47%1011.2 hPa
Jacksonville Craig Municipal Airport, FL24 mi46 minW 810.00 miA Few Clouds69°F46°F45%1011.5 hPa

Link to 5 minute data for KNRB

Wind History from NRB (wind in knots)
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2 days agoSE10SE10S8S10S9S9S9S6SW9SW7SW8SW5SW4S4SW4S4SW5W5W6W9W10
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Tide / Current Tables for Fernandina Beach, Amelia River, Florida
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Fernandina Beach
Click for Map
Fri -- 05:11 AM EDT     -1.03 feet Low Tide
Fri -- 07:03 AM EDT     Sunrise
Fri -- 09:03 AM EDT     Moonset
Fri -- 11:34 AM EDT     6.79 feet High Tide
Fri -- 05:17 PM EDT     -0.91 feet Low Tide
Fri -- 07:50 PM EDT     Sunset
Fri -- 11:03 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.56.14.11.8-0.1-1-0.60.72.54.35.86.66.75.741.90.1-0.8-0.60.72.44.25.97.1

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Fri -- 12:38 AM EDT     -0.01 knots Slack
Fri -- 03:26 AM EDT     -2.65 knots Max Ebb
Fri -- 07:03 AM EDT     Sunrise
Fri -- 07:26 AM EDT     0.00 knots Slack
Fri -- 09:03 AM EDT     Moonset
Fri -- 09:57 AM EDT     2.24 knots Max Flood
Fri -- 12:56 PM EDT     -0.01 knots Slack
Fri -- 03:34 PM EDT     -2.44 knots Max Ebb
Fri -- 07:20 PM EDT     0.00 knots Slack
Fri -- 07:50 PM EDT     Sunset
Fri -- 10:14 PM EDT     2.82 knots Max Flood
Fri -- 11:01 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1-0.6-2-2.6-2.6-2.3-1.6-0.60.81.92.21.91.2-0.1-1.5-2.3-2.4-2-1.4-0.40.92.22.82.6

Weather Map
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wmap_A
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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (15,3,4,5)
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Ground Weather Radar Station Jacksonville, FL
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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.