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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:55AM | Sunset 8:03PM | Wednesday August 21, 2019 4:54 PM EDT (20:54 UTC) | Moonrise 10:44PM | Moonset 11:09AM | Illumination 63% |  |
AMZ452 Expires:201908220500;;994669 Fzus52 Kjax 211904 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 304 Pm Edt Wed Aug 21 2019 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. Amz450-452-454-220500- 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- 304 Pm Edt Wed Aug 21 2019
Tonight..South winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop.
Thursday..South winds around 5 knots becoming southeast in the afternoon. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters smooth.
Thursday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop.
Friday..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Friday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 6 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Saturday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 7 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Saturday night..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Sunday and Sunday night..East northeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Monday..Northeast winds around 5 knots becoming east southeast in the afternoon. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Tonight..South winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop.
Thursday..South winds around 5 knots becoming southeast in the afternoon. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters smooth.
Thursday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop.
Friday..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Friday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 6 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Saturday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 7 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Saturday night..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Sunday and Sunday night..East northeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Monday..Northeast winds around 5 knots becoming east southeast in the afternoon. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 304 Pm Edt Wed Aug 21 2019
Synopsis.. Surface high pressure will extend over north florida through Thursday. A broad area of low pressure will approach the southeast florida atlantic coast late Friday, then begin to lift northward into the weekend.
Gulf stream.. The approximate location of the west wall of the gulf stream as of aug 20, 2019 at 1200 utc... 64 nautical miles east of flagler beach. 73 nautical miles east of saint augustine beach. 82 nautical miles east of jacksonville beach. 94 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.
Synopsis.. Surface high pressure will extend over north florida through Thursday. A broad area of low pressure will approach the southeast florida atlantic coast late Friday, then begin to lift northward into the weekend.
Gulf stream.. The approximate location of the west wall of the gulf stream as of aug 20, 2019 at 1200 utc... 64 nautical miles east of flagler beach. 73 nautical miles east of saint augustine beach. 82 nautical miles east of jacksonville beach. 94 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.
7 Day Forecast for Marine Location Near Jacksonville, FL
Hourly EDIT Helplocation: 30.28, -81.7 debug
Area Discussion for - Jacksonville, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kjax 211945 afdjax area forecast discussion national weather service jacksonville fl 345 pm edt Wed aug 21 2019 Near term (through Thursday night) This afternoon eve... convection rather sparse across NE fl this afternoon due to slightly drier over this area. Storms expected to be more scattered across the i-75 corridor into inland SE ga late this afternoon into the early eve where best convergence and deepest moisture will be. Thursday Thursday night... a bermuda ridge axis will be near the state border while there will be a lingering trough across SE ga. This will yield a light flow regime across the area with seabreezes and outflows able to push inland during the afternoon. Models indicate slightly drier air will continue across ne fl while pwats remain near to slightly above 2 inches across SE ga. Thus highest pops will be across inland se ga during the afternoon where deepest moist and best convergence will be with isolated pops elsewhere. Near climo temps. Short term (Friday-Saturday night) The ridge axis will nudge north across SE ga and weaken some as a cold front begins to slide south towards SE ga and a tropical wave moves across south fl. This will yield a light onshore flow across the area which will enable the east coast seabreeze to penetrate well inland during the afternoon and evening. Models continue to indicate slightly drier air will linger across NE fl while moisture will be deeper across SE ga (near front) and the far SE (near tropical wave) resulting in higher pops (mainly diurnal) there. Temps will be near to slightly above normal. Long term (Sunday-Wednesday) Potential wet pattern shaping up during the period as the aforementioned cold front stalls washes out over the region |
and the tropical wave over south fl moves offshore. The nhc gives the disturbance a 20 percent chance of development as it moves offshore early next week. Pops will be high this period given the deep tropical moisture in the area in combination with the stalled boundary and wave. Convection will be mainly diurnal driven but may also have ocnl periods of coastal showers. Temps will average slightly below normal due to cloud cover. Aviation Vfr conditions expected at coastal terminals including ssi, crg and sgj through tomorrow morning under ese onshore flow this afternoon near 10 kts. Tonight, land breeze develops which will back winds ssw with speeds < 5 kts after 04z. Best chance of afternoon restrictions today will focus inland with shower and isolated thunderstorm activity, with highest chances at vqq and gnv between 19-01z. Light south winds becomes calm inland through midnight with lingering debris clouds gradually fading, but high cirrus will continue overnight. Based on persistence, included restrictions to MVFR at vqq after 08z thu. Marine A bermuda ridge axis will be across the waters this week bringing a south to southeast flow across the waters with seas of 2 to 3 feet. A front will stall out across the waters by the latter weekend into early next week while a tropical wave moves offshore bringing an increase in shower and thunderstorm activity. Rip currents: low risk expected through Thursday. Preliminary point temps pops Amg 73 92 73 93 10 30 20 20 ssi 76 90 77 90 0 10 10 20 jax 73 92 73 92 0 20 10 10 sgj 74 89 75 89 0 20 10 10 gnv 72 91 73 91 20 20 20 20 ocf 72 91 73 91 20 20 20 20 Jax watches warnings advisories Fl... None. Ga... None. Am... None. Pp ae bn |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| JXUF1 | 7 mi | 55 min | 85°F | |||||
| NFDF1 | 9 mi | 55 min | E 5.1 G 7 | 85°F | 1020.5 hPa (-1.4) | |||
| DMSF1 | 11 mi | 55 min | 85°F | |||||
| BLIF1 | 12 mi | 55 min | E 8 G 12 | 89°F | 1019.6 hPa (-1.4) | 78°F | ||
| LTJF1 | 15 mi | 55 min | 87°F | |||||
| MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL | 17 mi | 55 min | ESE 7 G 11 | 86°F | 83°F | 1019 hPa (-1.5) | ||
| FRDF1 - 8720030 - Fernandina Beach, FL | 30 mi | 55 min | 92°F | 84°F | 1019.4 hPa (-1.4) | |||
| 41112 - Offshore Fernandina Beach, FL (132) | 37 mi | 55 min | 85°F | 2 ft | ||||
| SAUF1 - St. Augustine, FL | 37 mi | 55 min | ESE 9.9 G 11 | 83°F | 83°F | 1018.6 hPa (-1.7) | ||
| 41117 | 38 mi | 55 min | 84°F | 2 ft | ||||
| GTXF1 - Guana Tolomato Matanzas Reserve, FL | 50 mi | 70 min | ESE 7 | 87°F | 1020 hPa | 87°F |
Wind History for I-295 Bridge, St Johns River, FL
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
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| 2 days ago |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Jacksonville Naval Air Station, FL | 3 mi | 62 min | E 5 | 10.00 mi | Mostly Cloudy | 91°F | 71°F | 52% | 1017.9 hPa |
| Jacksonville Craig Municipal Airport, FL | 10 mi | 62 min | ESE 7 G 16 | 10.00 mi | Fair | 89°F | 73°F | 59% | 1018.4 hPa |
| Cecil Airport, FL | 10 mi | 65 min | Var 4 | 10.00 mi | Mostly Cloudy | 95°F | 73°F | 50% | 1017.9 hPa |
| Jacksonville International Airport, FL | 15 mi | 59 min | E 4 | 10.00 mi | Mostly Cloudy | 90°F | 72°F | 56% | 1018 hPa |
| Mayport Naval Station - Adm David L. McDonald Field, FL | 17 mi | 63 min | ESE 10 | 10.00 mi | Partly Cloudy | 88°F | 75°F | 68% | 1018.4 hPa |
Link to 5 minute data for KNIP
Wind History from NIP (wind in knots)
| 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | |
| Last 24hr | E | E | E | SE | SE | SE | SE | S | S | S | S | Calm | Calm | W | NW | Calm | Calm | S | S | Calm | Calm | E | E | |
| 1 day ago | S | E | SE | Calm | NW | E | E | NE | Calm | W | Calm | Calm | NE | Calm | Calm | NE | Calm | SE | SE | Calm | E | |||
| 2 days ago | W | S | S | W | SW | SW | SW | S | S | S | S | S | S | SW | SW | SW | S | S | S | W G20 | W | NW |
Tide / Current Tables for Ortega River Entrance, Florida (5)
EDIT Weekend mode (on/off) (on/off) Help One Week of DataOrtega River Entrance
Click for Map
Wed -- 02:48 AM EDT 1.14 feet High Tide
Wed -- 06:57 AM EDT Sunrise
Wed -- 09:13 AM EDT 0.35 feet Low Tide
Wed -- 12:09 PM EDT Moonset
Wed -- 03:12 PM EDT 1.17 feet High Tide
Wed -- 08:02 PM EDT Sunset
Wed -- 09:38 PM EDT 0.56 feet Low Tide
Wed -- 11:43 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 02:48 AM EDT 1.14 feet High Tide
Wed -- 06:57 AM EDT Sunrise
Wed -- 09:13 AM EDT 0.35 feet Low Tide
Wed -- 12:09 PM EDT Moonset
Wed -- 03:12 PM EDT 1.17 feet High Tide
Wed -- 08:02 PM EDT Sunset
Wed -- 09:38 PM EDT 0.56 feet Low Tide
Wed -- 11:43 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 0.8 | 1 | 1.1 | 1.1 | 1.1 | 1 | 0.8 | 0.6 | 0.4 | 0.4 | 0.4 | 0.5 | 0.7 | 0.9 | 1.1 | 1.2 | 1.1 | 1.1 | 0.9 | 0.8 | 0.6 | 0.6 | 0.6 | 0.6 |
Tide / Current Tables for St. Johns River Entrance, Florida Current (2) (expired 1999-12-31)
EDIT (on/off) Help One Week of DataSt. Johns River Entrance
Click for Map
Wed -- 12:25 AM EDT 1.53 knots Max Flood
Wed -- 02:49 AM EDT -0.00 knots Slack
Wed -- 05:41 AM EDT -2.25 knots Max Ebb
Wed -- 06:55 AM EDT Sunrise
Wed -- 10:08 AM EDT 0.00 knots Slack
Wed -- 12:08 PM EDT Moonset
Wed -- 12:50 PM EDT 1.72 knots Max Flood
Wed -- 03:27 PM EDT -0.00 knots Slack
Wed -- 06:10 PM EDT -2.09 knots Max Ebb
Wed -- 08:01 PM EDT Sunset
Wed -- 10:55 PM EDT 0.00 knots Slack
Wed -- 11:42 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:25 AM EDT 1.53 knots Max Flood
Wed -- 02:49 AM EDT -0.00 knots Slack
Wed -- 05:41 AM EDT -2.25 knots Max Ebb
Wed -- 06:55 AM EDT Sunrise
Wed -- 10:08 AM EDT 0.00 knots Slack
Wed -- 12:08 PM EDT Moonset
Wed -- 12:50 PM EDT 1.72 knots Max Flood
Wed -- 03:27 PM EDT -0.00 knots Slack
Wed -- 06:10 PM EDT -2.09 knots Max Ebb
Wed -- 08:01 PM EDT Sunset
Wed -- 10:55 PM EDT 0.00 knots Slack
Wed -- 11:42 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 1.4 | 1.4 | 0.7 | -0.2 | -1.2 | -2.1 | -2.2 | -1.8 | -1.2 | -0.5 | -0.1 | 0.6 | 1.4 | 1.7 | 1.2 | 0.4 | -0.6 | -1.6 | -2.1 | -1.9 | -1.4 | -0.8 | -0.4 | 0 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES 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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Jacksonville, FL (16,3,4,5)
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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 numerious 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. |