Marine Weather and Tides
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
|Sunrise 7:24AM||Sunset 7:41PM||Friday March 23, 2018 1:14 AM EDT (05:14 UTC)||Moonrise 10:55AM||Moonset 12:00AM||Illumination 38%|
EDIT (on/off)  Help
|AMZ452 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- 900 Pm Edt Thu Mar 22 2018 |
.small craft exercise caution...
Rest of tonight..North northwest winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Inland waters a moderate chop.
Friday..North winds 10 to 15 knots becoming east northeast in the evening. Seas 2 to 4 feet. Dominant period 5 seconds. Inland waters a moderate chop.
Friday night..Southeast winds 5 to 10 knots becoming west southwest late in the evening. Seas 2 to 3 feet. Dominant period 5 seconds. Inland waters smooth.
Saturday..West winds around 5 knots becoming south southwest in the morning, then becoming south southeast 15 to 20 knots in the afternoon. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop.
Saturday night..Southwest winds 15 to 20 knots. Seas 2 to 4 feet. Inland waters a moderate chop.
Sunday..West southwest winds 10 to 15 knots becoming west northwest 15 to 20 knots in the afternoon. Seas 2 to 3 feet. Inland waters a moderate chop. Showers likely and a slight chance of Thunderstorms.
Sunday night..Northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters choppy. Showers likely.
Monday..East northeast winds 20 to 25 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters choppy. A chance of showers.
Monday night and Tuesday..East northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters choppy.
|AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 900 Pm Edt Thu Mar 22 2018 |
Synopsis.. Offshore winds will gradually weaken as a strengthening low pressure off the new england coast moves toward the northeast. High pressure will build across the southeast and will move directly over our region Friday before shifting offshore early on Saturday ahead of a cold front. This front will cross our local waters on Sunday night with strong high pressure building southward from new england on Monday. Onshore winds will develop and strengthen Sunday night with small craft advisory conditions expected on all waters Sunday night through Tuesday.
7 Day Forecast for Marine Location Near Orange Park, FLHourly EDIT Help
Area Discussion for - Jacksonville, FL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 kjax 230049|
area forecast discussion
national weather service jacksonville fl
849 pm edt Thu mar 22 2018
Patchy frost over inland areas late tonight...
High pressure over the tn valley will continue to push into the se
us overnight with NW steering flow across the region. Sfc high
still a bit too far NW of SE ga NE fl to warrant calm winds
overnight and expect the light NW flow, dry airmass, clear skies
and lows in the mid-upper 30s to support patchy-scattered frost
over inland areas towards morning, not enough coverage to warrant
a frost advisory. Closer to the coast lows will be in the lower
40s. On Friday surface high pressure builds from the SE us
directly over the NE fl SE ga region and expect north winds around
10 mph and mostly sunny skies as some high clouds will begin to
spill into the SE us in the NW flow aloft. Temps will warm into
the upper 60s lower 70s over inland areas while a weak sea breeze
will develop along the coast during the afternoon hours and hold
max temps there in the lower middle 60s.
Vfr with a few high clouds developing on Friday afternoon.
N-nw winds 15-20 knots will continue tonight with seas 2-4 ft then|
weaken to 10-15 knots on Friday with local onshore sea breezes
along the coast by the mid-late afternoon hours.
Rip currents: low risk.
Critically low rh's expected again Friday afternoon in the 20-30%
range, but surface winds will be less out of the north at 10 mph,
so fire weather headlines are not expected.
Preliminary point temps pops
Amg 37 68 45 76 0 0 0 0
ssi 43 61 50 71 0 0 0 0
jax 39 67 47 77 0 0 0 0
sgj 42 64 48 74 0 0 0 0
gnv 37 70 44 78 0 0 0 0
ocf 36 71 44 78 0 0 0 0
Jax watches warnings advisories
Hess 23 shuler
Weather Reporting StationsEDIT (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||9 mi||44 min||63°F|
|DMSF1||12 mi||44 min||64°F|
|BLIF1||13 mi||44 min||NW 7 G 11||55°F||1025 hPa||28°F|
|LTJF1||16 mi||44 min||56°F||32°F|
|MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL||17 mi||44 min||NW 4.1 G 7||54°F||61°F||1024.2 hPa|
|RCYF1||31 mi||44 min||64°F|
|FRDF1 - 8720030 - Fernandina Beach, FL||32 mi||44 min||WNW 7 G 9.9||55°F||62°F||1025.1 hPa|
|SAUF1 - St. Augustine, FL||34 mi||74 min||NW 6 G 8||54°F||62°F||1024.7 hPa (+2.0)|
|41117||36 mi||52 min||62°F||3 ft|
|41112 - Offshore Fernandina Beach, FL (132)||38 mi||44 min||60°F||2 ft|
|GTXF1 - Guana Tolomato Matanzas Reserve, FL||47 mi||89 min||W 2.9||50°F||1026 hPa||34°F|
Wind History for I-295 Bridge, St Johns River, FL(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Jacksonville Naval Air Station, FL||0 mi||21 min||WNW 7||10.00 mi||Fair||54°F||30°F||40%||1024.1 hPa|
|Jacksonville Craig Municipal Airport, FL||11 mi||21 min||N 4||10.00 mi||Fair||51°F||35°F||54%||1024.3 hPa|
|Cecil Airport, FL||11 mi||19 min||N 0||10.00 mi||Fair||36°F||32°F||87%||1024.7 hPa|
|Mayport Naval Station - Adm David L. McDonald Field, FL||17 mi||22 min||NW 4||10.00 mi||Fair||53°F||33°F||47%||1024.1 hPa|
|Jacksonville International Airport, FL||18 mi||78 min||WNW 4||10.00 mi||Fair||45°F||34°F||66%||1024.3 hPa|
Wind History from NIP (wind in knots)
|1 day ago||NW||W||W||W||W||W||W||W|
|2 days ago||S||S||S||S||SW||SW||S||SW||SW|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Piney Point |
Click for Map
Fri -- 12:58 AM EDT Moonset
Fri -- 03:59 AM EDT 6.56 feet High Tide
Fri -- 07:26 AM EDT Sunrise
Fri -- 11:02 AM EDT 5.76 feet Low Tide
Fri -- 11:54 AM EDT Moonrise
Fri -- 04:03 PM EDT 6.50 feet High Tide
Fri -- 07:40 PM EDT Sunset
Fri -- 10:58 PM EDT 5.66 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|St. Johns River Entrance |
Click for Map
Fri -- 12:20 AM EDT 2.52 knots Max Flood
Fri -- 12:57 AM EDT Moonset
Fri -- 03:25 AM EDT -0.00 knots Slack
Fri -- 05:59 AM EDT -2.24 knots Max Ebb
Fri -- 07:25 AM EDT Sunrise
Fri -- 10:21 AM EDT 0.00 knots Slack
Fri -- 11:53 AM EDT Moonrise
Fri -- 12:48 PM EDT 1.82 knots Max Flood
Fri -- 03:40 PM EDT -0.00 knots Slack
Fri -- 06:23 PM EDT -2.05 knots Max Ebb
Fri -- 07:38 PM EDT Sunset
Fri -- 10:22 PM EDT 0.00 knots Slack
Tide / 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.
target = "new">Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Jacksonville, FL (1,6,7,8)(on/off)  Help
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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 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.