Marine Weather and Tides
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.
|Sunrise 6:26AM||Sunset 8:20PM||Thursday May 24, 2018 9:33 PM EDT (01:33 UTC)||Moonrise 2:48PM||Moonset 2:34AM||Illumination 77%|
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|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- 928 Pm Edt Thu May 24 2018 |
Rest of tonight..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop.
Friday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and Thunderstorms in the morning. A slight chance of showers and Thunderstorms in the afternoon.
Friday night..South winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a light chop. A slight chance of showers after midnight.
Saturday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Saturday night..Southeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Sunday..Southeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters choppy. Showers likely and a chance of Thunderstorms.
Sunday night..South southeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters choppy. A chance of showers and Thunderstorms.
Monday..South southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a moderate chop. Showers likely and a chance of Thunderstorms.
Monday night..South winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Tuesday..South winds around 10 knots. Seas 2 to 4 feet. Inland waters a light chop. Showers likely and a chance of Thunderstorms.
|AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 928 Pm Edt Thu May 24 2018 |
Synopsis..The axis of atlantic ridging will shift eastward on Friday as broad low pressure moves into the southern gulf of mexico. This low is expected to move northward towards the central gulf coast this weekend resulting in increasing southeasterly winds and building seas. Scattered to numerous showers and Thunderstorms are expected during the weekend and early next week.
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 241802|
area forecast discussion
national weather service jacksonville fl
202 pm edt Thu may 24 2018
Slow-moving thunderstorms with heavy rainfall for the next few
Near term through Friday
Latest hi-res guidance indicates shows scattered showers and
t-storms this afternoon with sea breezes and south-central ga
boundary... Increasing in coverage toward evening over western half
of forecast area. Some of this activity may drift back east over
central portions of our forecast area later in the evening while
gradually diminishing. Have shown this evolution in hourly
pop weather grids. Very light flow would support slow storm
motion, increasing the potential for locally heavy rainfall and
Another round of sea breeze scattered convection Friday
afternoon... Again becoming more numerous over western half of
foreccast area late in the day and into the evening.
Expect a mild night with low temperatures in the upper 60s to
lower 70s tonight... And high temperatures in the mid-upper 80s
Friday... With lower 80s immediate coast.
Short term Friday night through Monday ...
lingering convection Friday evening, mainly near the i-75 corridor,
will dissipate by midnight, with partly cloudy skies through the
overnight. The region will be between high pressure to the east
and a low pressure system to the southwest Saturday. Enough
moisture to support mainly diurnal convection Saturday. Latest
model runs are trending toward bringing the low pressure system
into the north central gulf Saturday night into Sunday. As the low
moves further to the north, moisture will increase over the
region, producing increasing chances for convection into Sunday
afternoon. The low is expected to slowly move north into the
central gulf coast states Sunday night into Monday. This will keep
the forecast area in the moist sector of this system with
convection and potential for heavy rainfall continuing, but will
largely be diurnal.
With the amount of cloud cover and precipitation expected this
weekend high temperatures will trend a little below seasonal
Long term Monday night through Thursday ...
the forecast will in large part depend on the track of this
weekend's low pressure system. The extended models currently
depict the this system to slowly move north northeastward after
reaching land, with this pattern keeping ample moisture across the
region. The potential for a heavy rainfall pattern will continue
into Tuesday with largely diurnal convection, with primarily
diurnal convection for Wednesday and Thursday as well.
Temperatures are expected to trend near to slightly above normal
Aviation Vfr conditions expected in general next 24 hrs... With
locally lower conditions where shra tsra occur. Best coverage over
taf sites to be thru 22z eastern TAF sites and 00z western sites.
Included mention of gusty winds with tsra.
Marine Western atlantic high pressure ridge will remain over
the waters... Maintaining a SE flow across the waters through the
weekend. Winds and seas are expected to remain below advisory
criteria through Saturday. Winds and seas may increase to advisory
criteria by Sunday and Monday as the pressure gradient increases
across the waters.
Rip currents: moderate risk due to southeasterly flow.
Preliminary point temps pops
Amg 68 86 68 83 80 60 20 30
ssi 72 81 72 80 20 20 10 30
jax 70 86 69 83 30 30 10 30
sgj 71 83 69 79 10 20 10 20
gnv 69 87 68 80 60 60 30 40
ocf 69 87 68 80 50 60 30 50
Jax watches warnings advisories
Wolf 23 cordero
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|
|DMSF1||12 mi||45 min||80°F|
|BLIF1||13 mi||45 min||ESE 6 G 11||78°F||1019.2 hPa||78°F|
|LTJF1||16 mi||45 min||78°F||74°F|
|MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL||17 mi||45 min||SE 8 G 12||78°F||78°F||1018.6 hPa|
|RCYF1||31 mi||45 min||82°F|
|FRDF1 - 8720030 - Fernandina Beach, FL||32 mi||45 min||79°F||78°F||1019.4 hPa|
|SAUF1 - St. Augustine, FL||34 mi||33 min||SE 9.9 G 12||78°F||80°F||1018.6 hPa (+0.9)|
|41117||36 mi||41 min||77°F||2 ft|
|41112 - Offshore Fernandina Beach, FL (132)||38 mi||33 min||77°F||2 ft|
|GTXF1 - Guana Tolomato Matanzas Reserve, FL||47 mi||108 min||SE 7||79°F||1020 hPa||74°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||40 min||ESE 8||10.00 mi||Mostly Cloudy||80°F||72°F||76%||1018.1 hPa|
|Jacksonville Craig Municipal Airport, FL||11 mi||40 min||SE 5||10.00 mi||Fair||76°F||75°F||97%||1018.3 hPa|
|Cecil Airport, FL||11 mi||43 min||SE 5||10.00 mi||Partly Cloudy||79°F||71°F||79%||1017.9 hPa|
|Mayport Naval Station - Adm David L. McDonald Field, FL||17 mi||41 min||SE 9||10.00 mi||Mostly Cloudy||77°F||73°F||90%||1018.2 hPa|
|Jacksonville International Airport, FL||18 mi||97 min||ESE 9||10.00 mi||Mostly Cloudy||79°F||68°F||69%||1017.4 hPa|
Wind History from NIP (wind in knots)
|1 day ago||SE||S||S||SE||S||S||S||S||S||S||S||S||S||S||S||S||S||SE||S||S||SE||SE||SE||SE|
|2 days ago||SE||E||E||SE||SE||SE||SE||SE||E||E||E||SE||SE||S||S||SE||SE||E||SE||E||SE||SE||SE||S |
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Piney Point |
Click for Map
Thu -- 01:56 AM EDT 5.66 feet Low Tide
Thu -- 03:34 AM EDT Moonset
Thu -- 06:28 AM EDT Sunrise
Thu -- 07:59 AM EDT 6.59 feet High Tide
Thu -- 02:37 PM EDT 5.65 feet Low Tide
Thu -- 03:48 PM EDT Moonrise
Thu -- 08:19 PM EDT Sunset
Thu -- 08:28 PM EDT 6.50 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|St. Johns River Entrance |
Click for Map
Thu -- 01:09 AM EDT 0.00 knots Slack
Thu -- 03:33 AM EDT Moonset
Thu -- 03:46 AM EDT 2.02 knots Max Flood
Thu -- 06:26 AM EDT Sunrise
Thu -- 06:56 AM EDT -0.00 knots Slack
Thu -- 10:27 AM EDT -2.21 knots Max Ebb
Thu -- 01:34 PM EDT 0.00 knots Slack
Thu -- 03:47 PM EDT Moonrise
Thu -- 04:26 PM EDT 2.12 knots Max Flood
Thu -- 07:36 PM EDT -0.00 knots Slack
Thu -- 08:18 PM EDT Sunset
Thu -- 11:14 PM EDT -2.19 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
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.
target = "new">Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Jacksonville, FL (21,6,7,8)(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.