Marine Weather and Tides
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
|Sunrise 6:29AM||Sunset 8:34PM||Monday June 26, 2017 4:35 AM EDT (08:35 UTC)||Moonrise 8:17AM||Moonset 10:02PM||Illumination 5%|
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|GMZ765 Apalachee Bay Or Coastal Waters From Keaton Beach To Ochlockonee River Fl Out To 20 Nm- Coastal Waters From Apalachicola To Destin Fl Out 20 Nm- Coastal Waters From Ochlockonee River To Apalachicola Fl Out To 20 Nm- Coastal Waters From Suwannee River To Keaton Beach Out 20 Nm- Waters From Apalachicola To Destin Fl From 20 To 60 Nm- Waters From Suwannee River To Apalachicola Fl From 20 To 60 Nm- 242 Am Edt Mon Jun 26 2017 |
Today..Northeast winds 5 to 10 knots becoming west 5 to 10 knots in the afternoon. Seas 1 to 2 feet. Dominant period 4 seconds. Protected waters mostly smooth. Slight chance of showers and Thunderstorms.
Tonight..Northwest winds 5 to 10 knots. Seas 1 foot. Dominant period 4 seconds. Protected waters a light chop. Slight chance of showers and Thunderstorms in the evening. Chance of showers and Thunderstorms after midnight.
Tuesday..North winds 5 to 10 knots early in the morning becoming light and variable winds, then becoming west 5 to 10 knots in the afternoon. Seas 1 foot. Dominant period 4 seconds. Protected waters smooth. Chance of showers and Thunderstorms in the morning. Slight chance of showers and Thunderstorms in the afternoon.
Tuesday night..Northwest winds 5 to 10 knots becoming east 5 to 10 knots in the late evening. Seas 1 foot. Dominant period 4 seconds. Protected waters a light chop. Slight chance of showers and Thunderstorms.
Wednesday..East winds 10 knots. Seas 1 to 2 feet. Dominant period 3 seconds. Protected waters a light chop. Chance of showers and Thunderstorms.
Wednesday night..Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Protected waters a light chop. Chance of showers and Thunderstorms.
Thursday..Southeast winds 10 knots. Seas 1 to 2 feet. Protected waters a light chop. Chance of showers and Thunderstorms.
Thursday night..Southeast winds 5 to 10 knots. Seas 1 foot. Protected waters a light chop. Chance of showers and Thunderstorms.
Friday..Southeast winds 5 to 10 knots. Seas 1 foot. Protected waters mostly smooth. Chance of showers and Thunderstorms.
|GMZ700 Synopsis For The Suwannee River To Destin Out To 60 Nm 242 Am Edt Mon Jun 26 2017 |
Synopsis..Typical summer weather is expected with a chance of showers and Thunderstorms and low winds and seas outside of Thunderstorms.
7 Day Forecast for Marine Location Near Spring Ridge, FLHourly EDIT Help
Area Discussion for - Jacksonville, FL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 kjax 260730|
area forecast discussion
national weather service jacksonville fl
330 am edt Mon jun 26 2017
Locally heavy rainfall potential continues today...
Near term Broad surface low pressure will linger offshore of the
ga sc atlantic coast today and tonight as the parent upper level
tough deepens over the eastern conus. A surface cold front was just
nw of the altamaha river basin early this morning, noted by dew
pts in 50s & 60s behind the boundary and a wind shift to the nw.
This boundary will gradually settle south across the local
forecast area over the next 24 hrs as the broad low pressure
center lingers offshore. Waves of showers and isolated
thunderstorms will move across the area under moist SW steering
flow through today, with an increase in thunderstorm coverage and
intensity expected in the afternoon due to diurnal heating
interacting with the surface front, lingering outflows for
yesterdays storms, and coastal convergence as NE flow funnels
southward down the atlantic coast as the surface front edges
farther south across N florida.
The weather prediction center (wpc) highlighted a 'marginal risk'
for excessive rainfall today along parts of the local atlantic coast
and the st. Johns river basin. This means that there was a 2-5% chance
that rainfall accumulations could exceed flash flood guidance. Given
high moisture content with precipitable water values of 2 inches
or more generally along and south of a jesup to homerville line,
believe that localized heavy rainfall of 2-4 inches will be
possible as was the case yesterday across much of the forecast
area mainly midday through this evening... With a gradual decrease
in rainfall intensity and coverage after sunset with the loss of
The surface trough axis will meander across N fl tonight and over
the adjacent atlantic waters which will continue a low chance of a
nocturnal shower or lone tstorm across the area tonight. Patchy
fog and low stratus will also be possible after sunset.
Temperatures will be below climo today under cloudy skies with
highs in the 80s. Mild temps tonight will range in the 70s.
Short term Tuesday and Wednesday
Upper trough will become more established across the region on
Tuesday. Some drier air will begin to inch in from the north, but
most of our forecast area will remain entrenched within a rather
moist environment, with prevailing mostly cloudy to overcast
skies. This combined with light onshore flow at the surface will
lead to another day of reprieve from the heat, especially near the
coast where temps will be a good 4 to 5 degrees below normal.
Stalled surface trough across the area and potential for
differential heating boundary across southeast georgia will lead
to scattered to numerous thunderstorms. The highest chances will
exist south of a line from waycross to brunswick. Locally heavy
rainfall and gusty winds will be possible with the strongest
storms on Tuesday.
Drier air will continue to filter southward Tuesday night, and
this will make for more comfortable overnight conditions,
especially across inland southeast georgia into the suwannee
valley of northeast florida.
Heights will quickly rebound on Wednesday as shortwave ridging
moves overhead. Onshore flow will also increase as surface high
pressure north of the area builds down the coast. Temps will|
rebound slightly but the increased onshore flow will keep temps
along the coast below normal for another day. Drier air over
southeast georgia on Wednesday will keep it mostly dry there
through the day, with only a slight chance of a shower. Lingering
deep-layer moisture across northeast florida will be supportive
of scattered storms with coverage and intensity building from east
to west during the day.
Long term Thursday through Sunday
Upper troughing will begin to move in from the west on Thursday,
and deep-layer moisture will begin to shift back to the north
across southeast georgia. Light onshore flow will prevail and
temps will be at or slightly below normal, with the lowest
readings once again along the atlantic coast. Scattered to
numerous storms are expected on Thursday with the best chances
along the i-75 corridor.
Mid-level troughing will become even more established across the
region on Friday with an increase in mid-level shortwave energy
through the weekend. Low level flow will begin to veer to the
south on Friday with southerly flow expected over the weekend. We
will also see a rebound in temperatures and the moist unstable
atmosphere with increased upper level support will bring a return
to above normal convective chances with numerous storms expected
across inland locations each afternoon and early evening. Locally
heavy rainfall, frequent lightning, and strong gusty winds will be
possible with the strongest storms each day.
Aviation Tempo ifr restrictions due to low stratus expected at
jax crg vqq early this morning. Elsewhere patchy ground fog and
low stratus possible, especially sgj where heavy rainfall
occurred yesterday. Showers and tstorms will increase in coverage
through midday with activity focused near the terminals through
the afternoon and in the evening as a cold front presses southward
across the local area. Restrictions expected in convection.
Marine Surface trough will press southward across the waters
today with winds shifting from wsw this morning to the nne from
north to south through the day with the front stalling across the
local waters and north florida tonight. Waves of showers and
thunderstorms are expected. Onshore flow will establish over the
waters Tue through Thu as high pressure builds over and east of
the mid-atlantic region.
Rip currents: low risk today. Low to moderate for SE ga Tuesday.
Hydrology Pottsburg creek in jax running within action stage
due to heavy rainfall yesterday. Starting to crest early this
morning. The sante fe river at worthington springs was also steady
within action stage.
Preliminary point temps pops
Amg 87 70 88 67 30 20 40 20
ssi 84 74 85 72 70 30 40 10
jax 87 72 85 70 70 50 60 10
sgj 85 74 84 72 70 50 60 20
gnv 88 72 86 69 60 50 70 20
ocf 89 73 87 70 60 50 70 20
Jax watches warnings advisories
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|
|KTNF1 - Keaton Beach, FL||50 mi||35 min||ENE 4.1 G 5.1||76°F||1017.5 hPa (-0.8)|
|CDRF1 - Cedar Key, FL||53 mi||35 min||NNE 2.9 G 4.1||80°F||1018 hPa (-0.8)||74°F|
|SAUF1 - St. Augustine, FL||74 mi||35 min||WSW 5.1 G 5.1||74°F||77°F||1017.6 hPa (-1.1)||74°F|
Wind History for Cedar Key, FL(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Gainesville, Gainesville Regional Airport, FL||24 mi||42 min||N 0||10.00 mi||Partly Cloudy||74°F||72°F||94%||1017.6 hPa|
Wind History from GNV (wind in knots)
|1 day ago||Calm||Calm||SE||Calm||SW||W||W||SW||W||SW||W||W||W||W||W||W||W||W||W||NW||W||SE||Calm||Calm|
|2 days ago||Calm||SE||S||S||S||S||S||S||S||S||S||SW||S||S||W||Calm||Calm||W||Calm||Calm||Calm||W |
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Steinhatchee River ent. |
Click for Map
Mon -- 04:53 AM EDT 3.24 feet High Tide
Mon -- 06:35 AM EDT Sunrise
Mon -- 09:20 AM EDT Moonrise
Mon -- 10:10 AM EDT 1.35 feet Low Tide
Mon -- 03:50 PM EDT 3.90 feet High Tide
Mon -- 08:37 PM EDT Sunset
Mon -- 11:04 PM EDT Moonset
Mon -- 11:18 PM EDT -0.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
Click for Map
Mon -- 04:42 AM EDT 3.20 feet High Tide
Mon -- 06:34 AM EDT Sunrise
Mon -- 09:20 AM EDT Moonrise
Mon -- 10:32 AM EDT 1.30 feet Low Tide
Mon -- 03:42 PM EDT 4.08 feet High Tide
Mon -- 08:35 PM EDT Sunset
Mon -- 11:03 PM EDT Moonset
Mon -- 11:27 PM EDT -0.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Southeast EDIT
Wind Forecast for Jacksonville, FL (4,6,7,8)(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.