Wednesday, January27, 2021
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Marine Weather and Tides
Fleming Island, FL

Version 3.4
NOTICE
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 7:18AMSunset 6:00PM Wednesday January 27, 2021 9:04 PM EST (02:04 UTC) Moonrise 4:58PMMoonset 6:34AM Illumination 100% Phase: Full Moon; Moon at 15 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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AMZ452 Expires:202101281030;;587417 Fzus52 Kjax 271956 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 256 Pm Est Wed Jan 27 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. Amz450-452-454-281030- 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- 256 Pm Est Wed Jan 27 2021
.small craft advisory in effect from 2 am est Thursday through late tonight...
.gale warning in effect from late tonight through Thursday morning...
Tonight..West winds 5 to 10 knots increasing to 10 to 15 knots late in the evening, then becoming northwest 20 to 25 knots after midnight with frequent gusts to gale force toward morning. Seas 3 to 4 feet with a dominant period 4 seconds. Rough on the intracoastal waters. Slight chance of Thunderstorms in the evening. Slight chance of showers.
Thursday..North winds 20 to 25 knots. Gust to gale force in the morning. Seas 4 to 6 feet with a dominant period 6 seconds. Rough on the intracoastal waters.
Thursday night..North winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Seas 4 to 6 feet with a dominant period 6 seconds. Choppy on the intracoastal waters.
Friday..Northeast winds 10 to 15 knots. Seas 3 to 5 feet. A moderate chop on the intracoastal waters.
Friday night..Northeast winds 5 to 10 knots. Seas 3 to 4 feet. Mostly smooth on the intracoastal waters.
Saturday..East winds 5 to 10 knots. Seas 3 to 4 feet. A light chop on the intracoastal waters.
Saturday night..Southeast winds 10 to 15 knots becoming south after midnight. Seas 3 to 4 feet.
Sunday..South winds 15 to 20 knots. Seas 3 to 4 feet. Chance of showers.
Sunday night..Southwest winds 10 to 15 knots. Seas 3 to 4 feet. Showers likely and slight chance of Thunderstorms.
Monday..Northwest winds 15 to 20 knots. Seas 3 to 4 feet. Slight chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 256 Pm Est Wed Jan 27 2021
Synopsis.. A strong cold front will cross area through this evening. The region will be between the exiting low and building high tonight, into Thursday, leading to elevated winds. The high will build from the northwest then north Thursday night into Friday. The high will build toward the northeast Friday night through Saturday. The high will build to the east Saturday night as a cold front approaches from the northwest. The cold front will cross the area Sunday into Sunday night. The region will be between the exiting low to the east northeast and building high to the west northwest Monday into Tuesday.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jan 27, 2021 at 1200 utc... 61 nautical miles east of flagler beach. 68 nautical miles east of saint augustine beach. 77 nautical miles east of jacksonville beach. 89 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Fleming Island, FL
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location: 30.13, -81.69     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 272357 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 657 PM EST Wed Jan 27 2021

AVIATION. [Through 00Z Friday]

Showers and isolated storms are moving east of the northeast FL area and leaving widespread IFR ceilings, with a chance of LIFR ceilings at times this evening. Improving cloudiness will develop late tonight from north to south as a cold front, currently located near the GA coast southwest to the northeast Gulf of Mexico, pushes further south of the area. VFR should be prevailing after 06Z-08Z, though may need to monitor SGJ for low ceilings lasting slightly longer there. Sfc winds are variable due to the front in the area, but will shift to the west around 8-12 kt later this evening, and then become more northwest around 06Z, and northerly by late morning near 10-15G22kt.

PREV DISCUSSION [316 PM EST].

NEAR TERM. [through Thursday] .

Frontal boundary extends NE to SW across forecast area early this afternoon with showers and embedded thunderstorms along it. The center of low pressure on this boundary has entered into the western counties, and is expected to track east, roughly along the I10 corridor through the afternoon. The front and associated precipitation shield will move east as well, as the low moves across area. The greatest potential for stronger storms will occur east of this low center as it tracks through, so generally along the I10 corridor. Latest forecast data suggests the center of this low will move offshore east of Jacksonville area toward 00z. As high pressure builds from the west Tonight, strong pressure gradient will exist across area between the departing low and advancing high. This will keep winds somewhat elevated Tonight, as skies clear from west to east. The gradient will weaken into the day Thursday, as skies remain clear.

Temperatures, will fall Tonight behind the front, with lows in the 40s. A significantly cooler day is expected for Thursday, with highs about 10 degrees below seasonal averages. In areas that were south of the front Today, highs Thursday will be about 20 degrees cooler than Today.

SHORT TERM . [Thursday Night through Friday] .

The low pressure center located off the Carolina coast will rapidly intensify while moving east northeastward into the Atlantic. High pressure will move in behind the low, centered in the upper midwest and building to the southeast into the Ohio and Tennessee Valleys. Winds will be calm and shift to be generally from the north overnight into Friday. Overnight low temperatures will be colder than average with temperatures near freezing for SE GA and the Suwannee Valley and mid 30s for the rest of NE FL and the coast. Widespread frost is expected and a freeze is possible for SE GA and the Suwannee Valley near sunrise with areas of to patchy frost expected for inland NE FL. High pressure to the north on Friday will keep the area dry with light winds from the northeast. High temperatures on Friday will be in the mid-to-upper 50s for SE GA and upper 50s to lower 60s for NE FL.

LONG TERM . [Saturday through Wednesday] .

High pressure will continue to dominate the weather pattern on Saturday with dry conditions expected. High temperatures on Saturday will warm into the lower 60s in SE GA and mid-to-upper 60s in NE FL. The next chance for rain will arrive on Sunday as a low pressure system moves from the Midwest towards the Mid- Atlantic, which will bring a trailing cold front across our area. The cold front will bring a chance of showers and thunderstorms to the area as it passes, and it will push offshore overnight Sunday into early Monday. High pressure will build again along the east coast following the passage of the front with surface flow generally from the northwest, which will keep the area dry and cool Monday afternoon through Wednesday. Temperatures will trend above average ahead of the front on Sunday and below average after it passes on Monday and Tuesday. Wednesday temperatures will return to near seasonable values.

Marine.

A strong cold front will cross area through this evening. The region will be between the exiting low and building high Tonight, into Thursday, leading to elevated winds. The high will build from the northwest then north Thursday night into Friday. The high will build toward the northeast Friday night through Saturday. The high will build to the east Saturday night as a cold front approaches from the northwest. The cold front will cross the area Sunday into Sunday night. The region will be between the exiting low to the east northeast and building high to the west northwest Monday into Tuesday.

Rip Currents: SE GA Low through Thursday NE FL Trending to Moderate for Thursday

PRELIMINARY POINT TEMPS/POPS.

AMG 42 53 32 54 34 / 20 0 0 0 0 SSI 45 54 37 53 40 / 20 0 0 0 0 JAX 46 55 35 57 40 / 20 0 0 0 0 SGJ 47 55 42 57 44 / 70 0 0 0 0 GNV 47 57 34 61 35 / 20 0 0 0 0 OCF 48 58 35 63 38 / 80 0 0 0 0

JAX WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AM . Small Craft Advisory from 11 PM this evening to 2 AM EST Thursday 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.

Gale Warning from 2 AM to 4 PM EST Thursday 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 2 AM to 5 AM EST Thursday for 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.

Gale Warning from 5 AM to noon EST Thursday for 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.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 29 mi64 min W 1.9 G 2.9 62°F 61°F1015.6 hPa (+1.0)62°F
41117 34 mi38 min 62°F1 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 41 mi79 min NNW 1 68°F 1016 hPa67°F
41112 - Offshore Fernandina Beach, FL (132) 45 mi34 min 57°F 59°F2 ft

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Naval Air Station, FL7 mi71 minN 010.00 miOvercast60°F58°F93%1015.3 hPa
Cecil Airport, FL12 mi74 minVar 33.00 miFog/Mist61°F59°F94%1015.9 hPa
Jacksonville Craig Municipal Airport, FL16 mi71 minN 07.00 miOvercast61°F58°F90%1015.5 hPa
Northeast Florida Regional Airport, FL22 mi68 minN 010.00 miMostly Cloudy63°F63°F100%1015.7 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL23 mi72 minW 42.50 miFog/Mist60°F59°F96%1015.4 hPa

Link to 5 minute data for KNIP

Wind History from NIP (wind in knots)
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Last 24hrW7SW7SW10S7SW5SW6S3SW7W6SW5SW8SW6SW9W10S9S7W9SW10S7N10NE3NW4CalmCalm
1 day agoSW4S4SW6S6S6S7CalmS5S6S9S6S6S6S9S8S9S8S9W12SW8SW4S7SW9SW6
2 days agoNE3CalmCalmN3SE10S4CalmCalmS5S6S4S6S8S9S6S8S7S8S11S6SW7W6W9W6

Tide / Current Tables for Orange Park, St. Johns River, Florida
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Orange Park
Click for Map
Wed -- 04:34 AM EST     -0.40 feet Low Tide
Wed -- 06:34 AM EST     Moonset
Wed -- 07:19 AM EST     Sunrise
Wed -- 10:40 AM EST     0.49 feet High Tide
Wed -- 04:58 PM EST     Moonrise
Wed -- 05:39 PM EST     -0.31 feet Low Tide
Wed -- 05:59 PM EST     Sunset
Wed -- 10:37 PM EST     0.33 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.1-0.1-0.3-0.4-0.4-0.4-0.3-0.10.20.40.50.50.40.2-0-0.2-0.2-0.3-0.3-0.200.20.30.3

Tide / Current Tables for Piney Point, St. Johns River, Florida (3)
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Piney Point
Click for Map
Wed -- 04:15 AM EST     -0.13 feet Low Tide
Wed -- 06:34 AM EST     Moonset
Wed -- 07:19 AM EST     Sunrise
Wed -- 10:15 AM EST     0.92 feet High Tide
Wed -- 04:58 PM EST     Moonrise
Wed -- 05:06 PM EST     -0.06 feet Low Tide
Wed -- 05:59 PM EST     Sunset
Wed -- 10:29 PM EST     0.76 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.30.1-0.1-0.1-0.10.10.40.60.80.90.90.80.60.30.1-0-0.100.20.40.60.70.7

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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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.