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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 6:54AM | Sunset 8:01PM | Wednesday August 21, 2019 3:33 AM EDT (07:33 UTC) | Moonrise 10:43PM | Moonset 11:07AM | Illumination 69% |  |
AMZ454 Expires:201908211515;;969818 Fzus52 Kjax 210711 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 311 Am 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. Amz450-452-454-211515- 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- 311 Am Edt Wed Aug 21 2019
Today..Southwest winds 5 knots becoming southeast 10 knots this afternoon. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop.
Tonight..South winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters smooth.
Thursday..Southeast winds 5 to 10 knots. 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 smooth.
Friday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters smooth.
Friday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Saturday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Showers likely and a slight chance of Thunderstorms.
Saturday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Sunday..East winds 5 to 10 knots. Seas 2 to 3 feet. Showers likely and a slight chance of Thunderstorms.
Today..Southwest winds 5 knots becoming southeast 10 knots this afternoon. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop.
Tonight..South winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters smooth.
Thursday..Southeast winds 5 to 10 knots. 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 smooth.
Friday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters smooth.
Friday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Saturday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Showers likely and a slight chance of Thunderstorms.
Saturday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Sunday..East winds 5 to 10 knots. Seas 2 to 3 feet. Showers likely and a slight chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 311 Am Edt Wed Aug 21 2019
Synopsis..The axis of atlantic ridging will remain across the waters the next few days. A frontal boundary will then move into the southeastern states and is expected to stall just north of the georgia waters this 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..The axis of atlantic ridging will remain across the waters the next few days. A frontal boundary will then move into the southeastern states and is expected to stall just north of the georgia waters this 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 St. Augustine South CDP, FL
Hourly EDIT Helplocation: 29.87, -81.31 debug
Area Discussion for - Jacksonville, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kjax 210700 afdjax area forecast discussion national weather service jacksonville fl 300 am edt Wed aug 21 2019 Near term Today and tonight... Low and mid-level ridge axis will remain across northeast fl today. Light winds will allow seabreezes to move well inland with scattered afternoon convection expected over inland zones. Temperatures will be at normal levels with highs in the upper 80s coast to the lower 90s inland. Convection will linger into the early evening hours over western zones before ending. Short term Thursday through Saturday... The region will be between high pressure to the east and a weak cold front to the north this period. This will yield a general south southeasterly flow. With this the east coast sea breeze will be able to push well inland. Therefore, the best chance for convection in the afternoons will be across interior counties. Can not rule out diurnal convection across the area, but will keep chances fairly low near the coast. Temperatures will be near to slightly above normal this period. Long term Saturday night through Tuesday... High pressure to the east northeast this period, with moisture increasing across the area. With the added moisture convective activity anticipated over the region. Will trend precipitation chances up this period. Temperatures will trend near to slightly above normal this period. |
Aviation Vfr conditions will prevail today. Patchy fog possible early this morning at vqq and gnv with chance of MVFR vsbys until around 12z. Isolated to scattered showers and thunderstorms over inland areas this afternoon may affect vqq and gnv between 19z- 00z. Marine High pressure over the area waters will result in light winds with 2 to 3 foot seas the next few days. A frontal feature will stall just north of the waters this weekend bringing an increase in shower and thunderstorm activity into early next week. Rip currents: low risk today and Thursday. Preliminary point temps pops Amg 91 73 92 73 30 10 20 10 ssi 88 76 90 77 10 0 10 10 jax 91 74 92 75 10 0 10 10 sgj 89 74 89 75 10 0 10 0 gnv 91 72 91 73 20 20 20 20 ocf 91 72 91 73 30 20 20 20 Jax watches warnings advisories Fl... None. Ga... None. Am... None. Zibura 23 |
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 |
| SAUF1 - St. Augustine, FL | 3 mi | 34 min | SW 4.1 G 4.1 | 79°F | 82°F | 1019 hPa (-1.1) | ||
| 41117 | 15 mi | 34 min | 82°F | 1 ft | ||||
| GTXF1 - Guana Tolomato Matanzas Reserve, FL | 15 mi | 109 min | W 1 | 76°F | 1021 hPa | 76°F | ||
| LTJF1 | 36 mi | 46 min | 80°F | |||||
| JXUF1 | 37 mi | 46 min | 84°F | |||||
| MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL | 37 mi | 46 min | W 2.9 G 4.1 | 80°F | 82°F | 1019.5 hPa | ||
| BLIF1 | 38 mi | 46 min | SW 1.9 G 2.9 | 80°F | 1020.2 hPa | 80°F | ||
| DMSF1 | 38 mi | 46 min | 84°F | |||||
| NFDF1 | 40 mi | 46 min | SSW 1.9 G 2.9 | 76°F | 1021 hPa |
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 |
| Northeast Florida Regional Airport, FL | 7 mi | 38 min | N 0 | 10.00 mi | Fair | 77°F | 75°F | 94% | 1019.1 hPa |
Link to 5 minute data for KSGJ
Wind History from SGJ (wind in knots)
| 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 | 12 AM | 1 AM | |
| Last 24hr | NW | Calm | Calm | Calm | Calm | NW | NW | Calm | E | E | E | E | E | E | E | E | E | E | SE | SE | SE | S | S | S |
| 1 day ago | SW | SW | SW | SW | S | SW | SW | SW | SW | SW | SW | S | SE | SE | SE | SE | SE | SE | SW | S | S | S | S | W |
| 2 days ago | W | W | SW | S | SW | S | S | SW | SW | SW | W | SW | W G22 | SW | SW | W | SW | W G18 | SW | S | S | S | S |
Tide / Current Tables for State Road 312, Matanzas River, Florida
EDIT Weekend mode (on/off) (on/off) Help One Week of DataTide / Current data from XTide NOT FOR NAVIGATION
Tide / Current Tables for Crescent Beach, Matanzas River, Florida
EDIT (on/off) Help One Week of DataTide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES Local Image of Southeast 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 (3,6,7,8)
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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 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. |