Monday, January25, 2021
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Marine Weather and Tides
Gainesville, 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 6:02PM Monday January 25, 2021 6:47 PM EST (23:47 UTC) Moonrise 3:11PMMoonset 4:47AM Illumination 94% Phase: Waxing Gibbous; Moon at 12 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:202101261015;;477679 Fzus52 Kjax 251849 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 149 Pm Est Mon Jan 25 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. Amz450-452-454-261015- 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- 149 Pm Est Mon Jan 25 2021
Tonight..Southwest winds 10 to 15 knots diminishing to 5 to 10 knots towards daybreak. Seas 3 to 4 feet with a dominant period 6 seconds. A light chop on the intracoastal waters.
Tuesday..South winds 10 to 15 knots. Seas 2 to 3 feet with a dominant period 6 seconds. A moderate chop on the intracoastal waters.
Tuesday night..Southwest winds 10 knots. Seas 2 to 3 feet with a dominant period 6 seconds. Mostly smooth on the intracoastal waters. Slight chance of showers.
Wednesday..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. A moderate chop on the intracoastal waters. Chance of showers in the morning, then showers likely in the afternoon.
Wednesday night..West winds 15 to 20 knots becoming northwest 20 to 25 knots after midnight. Seas 3 to 4 feet. Rough on the intracoastal waters.
Thursday..North winds 20 to 25 knots diminishing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet. Rough on the intracoastal waters.
Thursday night..North winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Seas 3 to 5 feet.
Friday..North winds 10 to 15 knots becoming northeast 5 to 10 knots in the afternoon. Seas 3 to 4 feet.
Friday night..Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
Saturday..Northeast winds 5 knots becoming southeast 5 to 10 knots in the afternoon. Seas 2 to 3 feet.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 149 Pm Est Mon Jan 25 2021
Synopsis.. A warm front will move northeastward across the waters this afternoon. Southerly winds will strengthen this afternoon following the passage of the warm front. A cold front will then stall to the west of our local waters on Tuesday, followed by low pressure developing along this front over the florida panhandle by Wednesday morning. This low pressure center will accelerate northeastward on Wednesday afternoon, moving quickly across the georgia coastal waters and dragging the cold front across our area during the evening hours, accompanied by showers. Low pressure will then rapidly strengthen well to the east of cape hatteras, resulting in a surge of northwesterly winds following the frontal passage on Wednesday night, with occasional gale force wind gusts possible offshore and small craft advisory conditions developing near shore. Small craft advisory conditions will persist for the offshore waters through early Friday. Weakening high pressure will then build into our region on Friday afternoon, resulting in decreasing winds and subsiding seas.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jan 23, 2021 at 1200 utc... 54 nautical miles east northeast of flagler beach. 61 nautical miles east of saint augustine beach. 74 nautical miles east of jacksonville beach. 91 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Gainesville, FL
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location: 29.71, -82.3     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 252346 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 646 PM EST Mon Jan 25 2021

AVIATION. [Through 00Z Wednesday]

VFR conditions will start the 00Z TAF period across the regional TAF sites. South to southwest winds overnight will be around 5 knots through 06Z then drop off to 3 knots or less at all terminals except KSSI which will remain elevated around 5-8 knots through 16Z. Ceilings will deteriorate late tonight, lowering to MVFR ceilings by 06Z/07Z and then dropping to IFR by 09Z/10Z at all TAF sites. Fog will also be present at the inland TAF sites KGNV and KVQQ between 10Z-14Z as moist southwest flow from the Gulf of Mexico and slacking winds combine. Ceilings will improve back to VFR in the form of with sct clouds around 2.5-3.0 kft by 14Z at KGNV, KJAX, and KVQQ as winds increase from the southwest around 10 knots with VFR ceilings returning to coastal terminals after 15Z/16Z. Showers ahead of a slow moving cold front will move towards KSSI near the end of the period, but chances too low to include in the TAF update.

PREV DISCUSSION [324 PM EST].

NEAR TERM [Through Tonight].

Cloudy skies and above average temperatures will persist through tonight into tomorrow as humid southerly flow moves across the region, ahead of the advancing cold front moving in towards the forecast area from out of the north-northwest. Patchy fog may build in early Tuesday morning before clearing out completely by mid to late morning. Very slight chances for light rain showers to develop for inland southeast Georgia and adjacent Florida areas west of the I-75 corridor overnight and into early Tuesday morning. Overnight low temperatures will be in the lower 60s and upper 50s.

SHORT TERM [Tuesday Through Wednesday Night].

Approaching cold front will briefly stall in the vicinity of central and northern Georgia on Tuesday which will ensure warmer temperatures over the forecast area for this period along with showers and potential thunderstorms, with the heaviest activity occurring over southeastern Georgia and adjacent areas of northeastern Florida. The front will push through the region over the course of the day on Wednesday with conditions clearing overnight. Temperatures ahead of the fropa will be above the climatological average.

LONG TERM [Thursday Through Monday].

Cold temperatures, dry weather, and clear skies will build in on Thursday as high pressure ridging settles in over the the southeastern US following the passage of the cold front. Potential for overnight and early morning frost developments for the end of the week and beginning of the weekend, with low temperatures dipping into the 30s and 40s. Temps will start to rise by the end of the weekend as high pressure conditions begin to dissipate ahead of another advancing cold front from out of the west.

MARINE.

A warm front will move northeastward across the waters this afternoon. Southerly winds will strengthen this afternoon following the passage of the warm front. A cold front will then stall to the west of our local waters on Tuesday, followed by low pressure developing along this front over the Florida panhandle by Wednesday morning. This low pressure center will accelerate northeastward on Wednesday afternoon, moving quickly across the Georgia coastal waters and dragging the cold front across our area during the evening hours, accompanied by showers. Low pressure will then rapidly strengthen well to the east of Cape Hatteras, resulting in a surge of northwesterly winds following the frontal passage on Wednesday night, with occasional Gale Force wind gusts possible offshore and Small Craft Advisory conditions developing near shore. Small Craft Advisory conditions will persist for the offshore waters through early Friday. Weakening high pressure will then build into our region on Friday afternoon, resulting in decreasing winds and subsiding seas.

Rip Currents: Moderate Risk for Fl beaches today

PRELIMINARY POINT TEMPS/POPS.

AMG 60 77 62 71 40 / 10 50 70 80 10 SSI 59 74 62 72 44 / 10 20 40 70 10 JAX 61 79 62 77 44 / 10 10 30 70 10 SGJ 60 77 60 77 46 / 10 10 10 50 10 GNV 59 78 59 77 44 / 0 10 20 60 10 OCF 60 79 60 79 46 / 10 10 10 50 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
CDRF1 - Cedar Key, FL 55 mi48 min SSW 7 G 8.9 65°F 1016 hPa (+0.6)64°F
SAUF1 - St. Augustine, FL 56 mi48 min S 11 G 12 65°F 62°F1015.5 hPa (+0.8)63°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 57 mi63 min SSE 4.1 70°F 1016 hPa65°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gainesville, Gainesville Regional Airport, FL3 mi55 minWSW 910.00 miFair72°F62°F71%1016 hPa
Keystone Airpark, FL16 mi53 minW 810.00 miFair73°F63°F69%1015.2 hPa

Link to 5 minute data for KGNV

Wind History from GNV (wind in knots)
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Last 24hrE3N3NE3NE4CalmE3E6CalmSE5CalmSE4S7S7SE4S6S8S56S9S10SW10
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1 day agoE4E5NE5NE5N5N4NE5NE4NE4CalmNW3N3N3N6NE6NE5E5E4SE9E8E6NE6NE7NE5
2 days agoS6S6SW6SW5SW4SW5SW3SW3NW5N7NE4NE5NE6N8NE7N6NE7NE6NE6NE5NE6NE4NE7E5

Tide / Current Tables for Buffalo Bluff, St. Johns River, Florida (3)
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Buffalo Bluff
Click for Map
Mon -- 12:57 AM EST     0.74 feet High Tide
Mon -- 04:44 AM EST     Moonset
Mon -- 07:19 AM EST     Sunrise
Mon -- 08:10 AM EST     0.07 feet Low Tide
Mon -- 01:33 PM EST     0.91 feet High Tide
Mon -- 03:08 PM EST     Moonrise
Mon -- 05:58 PM EST     Sunset
Mon -- 09:06 PM EST     0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.70.60.50.30.20.10.10.10.30.60.80.90.90.80.70.60.40.30.20.10.20.4

Tide / Current Tables for Buffalo Bluff, St. Johns River, Florida
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Buffalo Bluff
Click for Map
Mon -- 01:07 AM EST     3.54 feet High Tide
Mon -- 04:44 AM EST     Moonset
Mon -- 07:19 AM EST     Sunrise
Mon -- 07:55 AM EST     2.83 feet Low Tide
Mon -- 01:45 PM EST     3.62 feet High Tide
Mon -- 03:08 PM EST     Moonrise
Mon -- 05:58 PM EST     Sunset
Mon -- 08:36 PM EST     2.87 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.53.53.53.43.132.92.82.82.93.13.43.63.63.63.53.33.132.92.92.933.3

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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Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station




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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.