Sunday, July12, 2020
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Marine Weather and Tides
Jacksonville 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 6:31AMSunset 8:31PM Sunday July 12, 2020 5:41 PM EDT (21:41 UTC) Moonrise 12:00AMMoonset 12:20PM Illumination 50% Phase: Third Quarter Moon; Moon at 22 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:202007130300;;742877 Fzus52 Kjax 121854 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 254 Pm Edt Sun Jul 12 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. Amz450-452-454-130300- 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- 254 Pm Edt Sun Jul 12 2020
Tonight..Southwest winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a moderate chop.
Monday..South winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 7 seconds becoming 0 seconds in the afternoon. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Monday night..Southwest winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 5 seconds. Inland waters a light chop. A chance of Thunderstorms and a slight chance of showers.
Tuesday..Southwest winds 5 to 10 knots becoming south southeast in the afternoon. Seas 2 to 3 feet. Dominant period 7 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Tuesday night..South southwest winds 5 to 10 knots becoming west southwest after midnight. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop.
Wednesday..South southwest winds 5 to 10 knots becoming southeast in the afternoon. Seas 1 to 2 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Wednesday night..South southeast winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and Thunderstorms.
Thursday..East southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and Thunderstorms.
Thursday night and Friday..East southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of Thunderstorms and a slight chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 254 Pm Edt Sun Jul 12 2020
Synopsis.. A trough of low pressure over the region today, will lift back to the northwest tonight. The region will be between a trough to the northwest and high pressure to the southeast Tuesday. High pressure will build to the east northeast Wednesday into Thursday, as a trough sets up near the i75 corridor. High pressure will ridge across the region from the east northeast Friday through the weekend.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jul 11, 2020 at 1200 utc... 66 nautical miles east of flagler beach. 75 nautical miles east northeast of saint augustine beach. 80 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 Jacksonville Beach, FL
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location: 30.29, -81.36     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 121915 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 315 PM EDT Sun Jul 12 2020

Short Term. /through Thursday/ .

A northeast to southwest oriented trough lays across the region this afternoon, generally near a line from GNV to SGJ. North of this line, drier air will limit precipitation potential. Best potential for convection through this afternoon and evening will be south of that GNV to SGJ line. This trough will lift back to the north of the region Tonight, and linger just to the northwest during the day Tuesday as high pressure builds from the southeast. This will result in a more moist west southwest flow with scattered to numerous storms.

On Wednesday into Thursday the high will build more toward the east northeast, as a northwest to southeast oriented trough sets up across interior portion of the forecast area, in the vicinity of the I75 corridor. This pattern will result in an increasingly onshore flow, which will trend toward isolated to scattered storms near the east coast, and scattered to numerous storms further inland.

Temperatures this period will be above normal.

Long Term. /Thursday night through Sunday/ .

High pressure ridge will extend across the region from the northeast this period. This will lead to an extended period of onshore flow. Plenty of moisture is expected this period, with the east coast sea breeze pushing inland each day. As the sea breeze pushes inland it will provide for a convergent boundary to help initiate convection which will mainly be driven by diurnal heating. At 500 mb ridging is generally expected to be located to the northeast as well, so the flow aloft will help push storms that develop further inland. So, forecast will indicate isolated to scattered convection closer to the east coast, with scattered to numerous activity further inland. The convective timing near the I95 corridor would be early afternoon, with beaches possibly staying dry, then mid to late afternoon activity further inland.

Temperatures will trend a little above normal this period, with the warmest day time temperatures inland, due to relative cooling affect of the east coast sea breeze.

Marine.

A trough of low pressure over the region Today, will lift back to the northwest Tonight. The region will be between a trough to the northwest and high pressure to the southeast Tuesday. High pressure will build to the east northeast Wednesday into Thursday, as a trough sets up near the I75 corridor. High pressure will ridge across the region from the east northeast Friday through the weekend.

Rip Currents: SE GA: Low through Monday NE FL: Low through Monday

PRELIMINARY POINT TEMPS/POPS.

AMG 73 94 74 95 74 / 0 60 20 50 10 SSI 78 91 77 92 78 / 0 30 20 40 10 JAX 75 96 76 95 75 / 0 40 20 60 10 SGJ 76 94 76 93 75 / 0 20 20 60 10 GNV 73 93 74 93 74 / 0 30 30 70 10 OCF 73 92 75 91 75 / 0 20 30 60 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
LTJF1 8 mi60 min 93°F 65°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 8 mi54 min NE 1.9 G 4.1 93°F 85°F1011 hPa
BLIF1 11 mi60 min NNW 5.1 G 8 96°F 1011.4 hPa68°F
DMSF1 12 mi54 min 87°F
JXUF1 14 mi54 min 86°F
NFDF1 16 mi54 min NNW 1.9 G 7 96°F 86°F
41117 25 mi46 min 85°F2 ft
FRDF1 - 8720030 - Fernandina Beach, FL 27 mi54 min WNW 5.1 G 7 97°F 86°F1010.4 hPa
SAUF1 - St. Augustine, FL 30 mi42 min SE 9.9 G 11 86°F 86°F1011 hPa (-0.8)77°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 44 mi57 min SE 7 90°F 1012 hPa78°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mayport Naval Station - Adm David L. McDonald Field, FL8 mi50 minSE 1110.00 miFair91°F75°F59%1010.3 hPa
Jacksonville Craig Municipal Airport, FL9 mi49 minNNW 710.00 miMostly Cloudy95°F66°F39%1010.3 hPa
Jacksonville Naval Air Station, FL17 mi49 minVar 610.00 miPartly Cloudy97°F63°F33%1010.1 hPa
Jacksonville International Airport, FL22 mi46 minN 010.00 miMostly Cloudy94°F66°F40%1010.1 hPa
Northeast Florida Regional Airport, FL22 mi46 minSE 910.00 miMostly Cloudy90°F73°F59%1010.7 hPa
Fernandina Beach Municipal Airport, FL23 mi47 minNNW 310.00 miMostly Cloudy94°F68°F43%1010.2 hPa

Link to 5 minute data for KNRB

Wind History from NRB (wind in knots)
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Last 24hrSE11
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1 day agoSE8SE8SE11S11S9SW7SW5SW8SW5W6W6W7W7W7W6W9W9W55N4E6SE14SE11SE13
2 days agoSW8W8N6N4W3W4W5W4SW4SW5W5W4W5W6W6W7W7NW6W8NW6NE4E7E10E8

Tide / Current Tables for Jacksonville Beach, Florida
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Jacksonville Beach
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Sun -- 12:55 AM EDT     Moonrise
Sun -- 01:39 AM EDT     5.11 feet High Tide
Sun -- 06:32 AM EDT     Sunrise
Sun -- 08:14 AM EDT     1.03 feet Low Tide
Sun -- 01:20 PM EDT     Moonset
Sun -- 02:09 PM EDT     5.10 feet High Tide
Sun -- 07:31 PM EDT     Last Quarter
Sun -- 08:29 PM EDT     Sunset
Sun -- 08:41 PM EDT     1.54 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.455.14.73.932.11.411.21.92.93.94.75.14.94.43.62.82.11.61.622.7

Tide / Current Tables for St. Johns River Entrance, Florida Current (2) (expired 1999-12-31)
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St. Johns River Entrance
Click for Map
Sun -- 12:55 AM EDT     Moonrise
Sun -- 01:43 AM EDT     1.46 knots Max Flood
Sun -- 04:21 AM EDT     -0.00 knots Slack
Sun -- 06:32 AM EDT     Sunrise
Sun -- 07:09 AM EDT     -1.94 knots Max Ebb
Sun -- 12:03 PM EDT     0.00 knots Slack
Sun -- 01:20 PM EDT     Moonset
Sun -- 02:13 PM EDT     1.54 knots Max Flood
Sun -- 05:00 PM EDT     -0.00 knots Slack
Sun -- 07:31 PM EDT     Last Quarter
Sun -- 07:38 PM EDT     -1.68 knots Max Ebb
Sun -- 08:29 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.41.21.410.3-0.7-1.6-1.9-1.8-1.5-1.1-0.7-0.10.91.51.40.80-1-1.6-1.7-1.4-1.1-0.9

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
Wind Forecast for Jacksonville, FL (17,4,5,8)
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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.