Friday, January22, 2021
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L-36.com

Marine Weather and Tides
Macclenny, 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 7:20AMSunset 5:56PM Friday January 22, 2021 10:59 AM EST (15:59 UTC) Moonrise 1:06PMMoonset 2:00AM Illumination 68% 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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AMZ452 Expires:202101222230;;311628 Fzus52 Kjax 221332 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 832 Am Est Fri Jan 22 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. Amz450-452-454-222230- 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- 832 Am Est Fri Jan 22 2021
Rest of today..West winds 5 to 10 knots becoming north late in the afternoon. Seas 2 to 3 feet with a dominant period 8 seconds. A light chop on the intracoastal waters. Showers.
Tonight..North winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Seas 2 to 3 feet with a dominant period 4 seconds. A light chop on the intracoastal waters. Chance of showers in the evening, then slight chance of showers after midnight.
Saturday..Northeast winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 5 seconds. A moderate chop on the intracoastal waters.
Saturday night..Northeast winds 10 to 15 knots. Seas 3 to 4 feet. A light chop on the intracoastal waters.
Sunday..East winds 5 to 10 knots. Seas 3 to 4 feet. A light chop on the intracoastal waters.
Sunday night..Southeast winds 5 to 10 knots becoming south 10 knots after midnight. Seas 3 to 4 feet.
Monday..South winds 10 to 15 knots. Seas 3 to 4 feet.
Monday night..Southwest winds 10 to 15 knots. Seas 3 to 4 feet.
Tuesday..West winds 10 to 15 knots. Seas 2 to 3 feet. Slight chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 832 Am Est Fri Jan 22 2021
Synopsis.. A stationary frontal boundary extending across inland southeast georgia will sink southward as a cold front this afternoon, passing through the northeast florida waters tonight. Showers will continue today over the waters with less coverage over the southern portion of the northeast florida waters through tonight with drier conditions by Saturday morning. Strengthening high pressure over the upper midwest will move southeast over the ohio valley on Saturday and will briefly Wedge down the southeastern seaboard with strengthening onshore winds and gradually building seas this weekend. The frontal boundary will then lift northward as a warm front across our local waters on Sunday afternoon and evening as low pressure develops over northern texas. Winds will become southerly in the wake of the warm front by Sunday night. Low pressure will move quickly northeastward across the ozarks on Monday and will enter the ohio valley by Tuesday, pushing a cold front into the southeastern states.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jan 21, 2021 at 1200 utc... 62 nautical miles east of flagler beach. 69 nautical miles east of saint augustine beach. 77 nautical miles east of jacksonville beach. 97 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Macclenny, FL
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location: 30.24, -82.12     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 221407 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 907 AM EST Fri Jan 22 2021

UPDATE.

The forecast remains on track overall this morning with showers encroaching southward into Northeast Florida areas along and just south of I-10 a little sooner than expected. Some patchy fog has accompanied the showers in inland SE GA with Patchy to areas of fog sneaking eastward from the Gulf of Mexico along I-75 over inland NE FL and north central Florida where slightly warmer temperatures into the low 60s were common and cloud cover, rain has yet to arrive with light southwest flow. Meanwhile, rain showers, cooler temperatures in the mid to upper 50s, and light northerly winds were observed near and behind the frontal boundary located just south of the Altamaha river over SE GA with cloudy, low overcast skies accompanying the showers.

The fog should end by mid to late morning with likely to numerous showers for locations just south of I-10 northward into SE GA through sunset with scattered showers from Gainesville east southeast towards Flagler Beach today eventually moving south into Ocala by this early afternoon. Shower coverage will become scattered this evening across the area as the frontal boundary sinks south into NE FL with winds becoming northerly behind the front. Showers will be tapering off over SE GA after midnight and over NE FL by around sunrise with mostly cloudy, low overcast skies lingering with patchy fog possible along the front late tonight. Drier conditions expected on Saturday as strong high pressure builds in from the northwest with skies gradually clearing from north to south except for north central Florida areas closer to the frontal boundary with light northerly winds.

Made just a slight downward adjustment to today's high temperatures given the slightly faster onset of rain showers and low overcast conditions into most of NE FL.

PREV DISCUSSION [548 AM EST].

NEAR TERM [Through Tonight].

Surface ridging will strengthen over the Upper Midwest today and will build southeastward into the Ohio Valley tonight, pushing the stationary frontal boundary slowly southward across I-10 this afternoon. Light to occasionally moderate showers will overspread southeast GA through the predawn and early morning hours, with sprinkles and drizzle along the I-10 corridor briefly becoming more showery as the morning progresses. Meanwhile, low stratus and possibly fog are expected to overspread north central FL during the predawn and early morning hours as thicker mid level cloud cover remains north of these locations.

Forcing along the frontal boundary will weaken as the jet streak shifts off the Mid-Atlantic coast this afternoon, with shower coverage becoming scattered in coverage along and just north of the boundary by late afternoon as it shifts south of I-10. Northerly winds will develop in the wake of the frontal boundary this morning across southeast GA, with low stratus ceilings becoming locked in place as weak isentropic lift continues to the north of the boundary through this afternoon. Beneficial rainfall amounts around 1 inch are expected today across inland portions of southeast GA, mostly this morning as periods of moderate rainfall traverse the region from west to east. Temperatures early this morning around 60 degrees will slowly fall through the 50s today in southeast GA, while highs reach the mid 60s late this morning along the I-10 corridor, followed by slowly falling temperatures by late afternoon. Rainfall amounts around one quarter inch are expected along the I-10 corridor, while amounts less than one tenth of an inch expected in north central FL. Highs in north central FL will climb to the low and mid 70s, as the frontal boundary and shower activity will likely not reach these locations until around sunset.

Widely scattered showers will remain possible along the slow moving boundary as it sinks into north central FL tonight. Meanwhile, low stratus and possibly some areas of locally dense fog will develop this evening over southeast GA and the I-10 corridor. A drier air mass will then begin to advect into southeast GA during the overnight and predawn hours, which will dissipate and stratus and fog before sunrise, with some clearing possible near the Altamaha River. Low stratus and fog will be possible along the I-10 corridor overnight through around sunrise on Saturday. Lows will fall to the 40s across southeast GA and the 50s for northeast FL.

SHORT TERM [Saturday through Sunday Night].

The quasi-stationary frontal boundary across north-central FL will nudge southward through the daytime hours on Saturday as the surface ridge of high pressure over the Ohio Valley slides southeastward. Slight chance of showers continues Sat morning and early afternoon near Ocala and Flagler. After that, cool and dry conditions will prevail through the weekend. On Saturday, highs in the 60s with lows Saturday night/Sunday morning in the 40s to low 50s. Sunday will be warmer, with highs warming to the low 70s in NE FL and overnight lows in the 50s across the region Sunday night/Monday morning.

LONG TERM [Monday through Friday].

A series of shortwave troughs will eject into the southern Plains next week, swinging a few weak cold front systems our way. There remains model disagreement with the timing for the next few systems, but generally the consensus is that the first cold front will approach the area Tuesday, decaying as it passes through Tuesday night. Around Wednesday-Thursday, another weakening frontal system will makes its way toward SE GA and NE FL, with cooler drier conditions likely to build over the area late next week. The week will start off warm, with forecast max temps in the 70s across the region Monday and Tuesday and lows in the 50s and low 60s. After that, temps will return to the 60s and low 70s during the day, 40s and 50s at night.

AVIATION. [Through 12Z Saturday]

Showers will continue through around 21Z at SSI, and ceilings will lower to IFR shortly after 12Z. IFR ceilings will prevail at GNV through around 15Z. Otherwise, showers will continue to overspread the Duval County terminals early this morning, with MVFR ceilings prevailing shortly after 12Z, followed by IFR ceilings after 19Z. MVFR conditions are expected to arrive at SGJ towards 16Z, with showers possible after 20Z. Ceilings will then lower back to IFR at GNV by 00Z. Periods of LIFR ceilings are expected at SSI after 17Z, especially during periods of showers. IFR to LIFR ceilings will prevail overnight at the regional terminals, with showers potentially lingering at SGJ and GNV. Southwesterly surface winds sustained at 5-10 knots early this morning will shift to north-northeasterly at SSI towards 15Z, with winds shifting to northerly after 19Z at the rest of the regional terminals.

MARINE.

A stationary frontal boundary extending across inland southeast Georgia will move slowly southward as a cold front this afternoon, passing through the northeast Florida waters tonight. Showers will overspread the Georgia waters during the early morning hours, with scattered showers expected entering the northeast Florida waters during the late morning and early afternoon hours. Seas of 2-3 feet will prevail near shore today and tonight, with 3-4 foot seas expected offshore. Meanwhile, strengthening high pressure over the Upper Midwest will slide southeastward over the Ohio Valley on Saturday and will briefly wedge down the southeastern seaboard, resulting in strengthening onshore winds and gradually building seas this weekend. Wind speeds will likely reach Caution levels of 15-20 knots offshore on Saturday afternoon, while speeds remain around 15 knots near shore. The frontal boundary will then lift northward as a warm front across our local waters on Sunday afternoon and evening as low pressure develops over northern Texas. Winds will become southerly in the wake of the warm front by Sunday night. Speeds and seas will likely reach Caution levels offshore on Monday and Tuesday. Low pressure will then accelerate northeastward across the Ozarks on Monday and will enter the Ohio Valley by Tuesday, pushing a cold front into the southeastern states.

Rip Currents: Offshore winds this morning and low wave heights will result in a low rip current risk today. Strengthening north- northeasterly winds will create a moderate risk at all area beaches on Saturday, with onshore winds continuing on Sunday likely keeping a moderate risk in place.

FIRE WEATHER.

With a quasi-stationary front draped across southern GA today, sinking to north-central FL tomorrow, winds will be light and mixing heights will be low. This will lead to low dispersions along and north of the I-10 corridor today and across north- central FL on Saturday. An active pattern and light onshore flow will keep RH values above 50% through the period.

PRELIMINARY POINT TEMPS/POPS.

AMG 58 45 61 42 61 / 100 30 0 10 10 SSI 61 48 59 48 61 / 100 40 0 10 10 JAX 63 51 63 51 68 / 80 50 10 10 10 SGJ 67 54 64 55 69 / 60 40 10 10 10 GNV 70 55 66 50 72 / 40 30 10 10 10 OCF 72 57 68 54 76 / 20 30 20 10 10

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
JXUF1 28 mi66 min 57°F
NFDF1 28 mi66 min W 1.9 G 5.1 62°F 61°F
DMSF1 31 mi66 min 58°F
BLIF1 33 mi66 min W 5.1 G 8.9 62°F 62°F
LTJF1 37 mi66 min 62°F 60°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 38 mi66 min W 8 G 8.9 62°F 58°F
FRDF1 - 8720030 - Fernandina Beach, FL 46 mi66 min WSW 4.1 G 6 64°F 57°F
SAUF1 - St. Augustine, FL 52 mi60 min WSW 5.1 G 7 63°F 60°F1016.9 hPa (+1.7)61°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 62 mi75 min W 2.9 63°F 1017 hPa60°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cecil Airport, FL13 mi70 minW 55.00 miLight Rain63°F61°F94%1016.3 hPa
Jacksonville Naval Air Station, FL23 mi67 minWSW 64.00 miRain Fog/Mist61°F60°F97%1016 hPa

Link to 5 minute data for KVQQ

Wind History from VQQ (wind in knots)
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1 day agoNW8NW10W10--W10W9W733333----------------444SW5
2 days ago44E64--44CalmCalmCalmCalmCalm----------------Calm4CalmN5

Tide / Current Tables for Doctors Lake, Peoria Point, Florida
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Doctors Lake
Click for Map
Fri -- 01:29 AM EST     5.40 feet Low Tide
Fri -- 01:58 AM EST     Moonset
Fri -- 07:21 AM EST     Sunrise
Fri -- 07:30 AM EST     6.12 feet High Tide
Fri -- 01:04 PM EST     Moonrise
Fri -- 02:24 PM EST     5.52 feet Low Tide
Fri -- 05:47 PM EST     5.97 feet High Tide
Fri -- 05:55 PM EST     Sunset
Fri -- 07:01 PM EST     5.95 feet Low Tide
Fri -- 07:33 PM EST     5.96 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.45.45.45.65.866.16.16.15.95.75.65.65.65.55.55.75.9665.95.85.65.5

Tide / Current Tables for Doctors Lake, Peoria Point, Florida (2)
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Doctors Lake
Click for Map
Fri -- 01:29 AM EST     6.24 feet Low Tide
Fri -- 01:58 AM EST     Moonset
Fri -- 07:21 AM EST     Sunrise
Fri -- 07:35 AM EST     6.91 feet High Tide
Fri -- 01:04 PM EST     Moonrise
Fri -- 02:00 PM EST     6.38 feet Low Tide
Fri -- 05:38 PM EST     6.87 feet High Tide
Fri -- 05:55 PM EST     Sunset
Fri -- 06:35 PM EST     6.86 feet Low Tide
Fri -- 07:41 PM EST     6.87 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.36.26.36.46.76.86.86.96.96.86.66.56.46.46.46.56.76.86.96.96.96.86.56.4

Weather Map
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wmap_A
GEOS Local Image of    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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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.