Monday, August26, 2019 L-36.com


Marine Weather and Tides
Jacksonville Beach, FL

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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 6:57AMSunset 7:57PM Monday August 26, 2019 4:58 AM EDT (08:58 UTC) Moonrise 1:38AMMoonset 4:02PM Illumination 18% Phase: Waning Crescent; Moon at 25 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ452 Expires:201908261600;;222830 Fzus52 Kjax 260716 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 316 Am Edt Mon Aug 26 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. Amz450-452-454-261600- 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- 316 Am Edt Mon Aug 26 2019
Today..East northeast winds 10 to 15 knots. Seas 3 to 4 feet. Dominant period 7 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Tonight..East winds 10 to 15 knots becoming south southeast 5 to 10 knots after midnight. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Tuesday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 7 seconds. Inland waters smooth. A chance of showers and Thunderstorms.
Tuesday night..South southeast winds 5 to 10 knots becoming southwest after midnight. Seas 2 to 3 feet. Dominant period 7 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Wednesday..West winds 5 to 10 knots becoming southeast in the afternoon. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Wednesday night..South winds 5 to 10 knots becoming west southwest after midnight. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Thursday..North winds 5 to 10 knots becoming east northeast in the afternoon. Seas 2 to 3 feet. Showers and Thunderstorms likely.
Thursday night and Friday..East winds 5 to 10 knots. Seas 2 to 3 feet. Showers and Thunderstorms likely.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 316 Am Edt Mon Aug 26 2019
Synopsis.. A surface trough lingering across the local waters will lift north by tonight. A front will settle across south georgia Tuesday and linger through Wednesday. A broad low is expected to form along this meandering front late in the week, then gradually shift westward this weekend as high pressure builds north of the local area.
Gulf stream.. The approximate location of the west wall of the gulf stream as of aug 24, 2019 at 1200 utc... 52 nautical miles east northeast of flagler beach. 59 nautical miles east of saint augustine beach. 73 nautical miles east of jacksonville beach. 91 nautical miles east of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Jacksonville Beach, FL
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location: 30.29, -81.36     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 260818
afdjax
area forecast discussion
national weather service jacksonville fl
418 am edt Mon aug 26 2019

Near term (through tonight)
Wedge of high pressure from northern new england to ga weakens
some as invest 98l tracks further NE offshore which allows for
a lighter steering flow across the area and for a front near the
state line to lift north into SE ga. This allows for better
penetration of both west and east coast seabreezes across inland
areas where highest pops (likely) will be. The added lift from
the seabreeze merger... Outflows... And the frontal boundary will
all contribute to the initiation of after storms with best coverage
mainly from just west of the st johns out to the i-75 corridor.

A few isolated showers or storms are possible along the flagler
coast in the morning to early afternoon due to lingering convergent
boundary there. Due to high pwats (around 2 inches) and light winds
some of the stronger storms will be capable of locally heavy rain
in excess of 2 inches along with frequent lightning and gusty winds.

Forecast model soundings continue to indicate steering winds become
more SW in the evening (although light) which may result in some
inland storms drifting back towards the coast during the evening
while gradually decreasing in coverage and intensity. Afternoon
temps will be slightly below normal across most of the area although
areas across the far south (with less cloud cover) will have temps
near to slightly above climo.

Short term (Tuesday-Wednesday night)
A weak, meandering convergent axis may bring some early morning
coastal showers Tuesday, but mostly dry conditions are expected
until early afternoon along the sea breeze fronts. SW steering
flow increases some as another cold front begins to edge SE towards
the area resulting in a more dominant west coast seabreeze with
scattered storms developing towards the gulf coast in the early
afternoon and spreading east towards the east coast in the mid late
afternoon. Storms will be most numerous across SE ga in the afternoon
and evening where best convergence lift will be out ahead of the front.

A tail end of a short wave trough and associated cold front will
traverse the region on Wednesday bringing scattered to numerous
afternoon and evening showers and storms. Storms may be rather
strong near the st johns river basin where the merger of seabreezes
and outflows expected. The storms expected to end Wednesday night
due to loss of heating. Near climo temps expected.

Long term (Thursday-Sunday)
The aforementioned cold front will stall across NE fl on
Thursday. Models still indicate a low will form along the
front across NE fl and drop SW to the gulf of mexico
Thursday night Friday and continue moving west over the
weekend. Deep tropical moisture will surge into the area
as winds become onshore as a deep layer ridge builds just
north of the area. This results in elevated mainly diurnal
pops with afternoon temps near to slightly below normal
due to cloud cover.

Aviation Satellite imagery shows generallyVFR conditions
across the area, with patchy areas of lower clouds bkn025-035 ...

especially around kssi area. Latest tafs have tempo for MVFR cigs
remainder of tonight, withVFR CIGS during the day Mon except
lower around scattered afternoon shra tsra. Greatest coverage
around kgnv where tempo included... Elsewhere just prob30. E to ne
winds 6-12 kts expected during the day.

Marine A surface trough lingering across the local waters will lift
to the north of the waters by tonight. A cold front will settle
south across the waters on Wednesday before stalling out. A
broad low is expected to form along this boundary on Thursday
and move to the southwest late in the week and weekend as high
pressure builds north of the waters.

Rip currents: moderate risk today. Low risk expected for
Tuesday.

Preliminary point temps pops
Amg 87 73 89 74 40 50 60 50
ssi 85 77 87 77 30 30 40 50
jax 88 74 90 74 30 30 40 40
sgj 87 76 89 75 30 30 40 30
gnv 91 74 90 74 60 60 40 20
ocf 91 74 90 74 60 50 50 20

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Pp pw


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 8 mi59 min NE 14 G 16 80°F 82°F1015 hPa (-1.4)
LTJF1 8 mi59 min 80°F
BLIF1 11 mi59 min NE 7 G 11 80°F 1015.8 hPa (-1.3)79°F
DMSF1 12 mi59 min 84°F
JXUF1 14 mi59 min 85°F
NFDF1 16 mi59 min NNE 4.1 G 5.1 75°F 1016.6 hPa (-1.3)
41117 25 mi59 min 82°F5 ft
FRDF1 - 8720030 - Fernandina Beach, FL 27 mi59 min 82°F 85°F1015.4 hPa (-1.4)
41112 - Offshore Fernandina Beach, FL (132) 29 mi59 min 82°F4 ft
SAUF1 - St. Augustine, FL 30 mi59 min NE 14 G 15 81°F 83°F1014.4 hPa (-1.5)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 44 mi74 min NE 7 80°F 1016 hPa80°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mayport Naval Station - Adm David L. McDonald Field, FL8 mi4.1 hrsENE 1410.00 miA Few Clouds80°F72°F76%1015.8 hPa
Jacksonville Craig Municipal Airport, FL9 mi2.1 hrsENE 610.00 miA Few Clouds78°F72°F82%1015.1 hPa
Jacksonville Naval Air Station, FL17 mi2.1 hrsNE 810.00 miMostly Cloudy80°F71°F74%1014.8 hPa
Fernandina Beach Municipal Airport, FL23 mi2.7 hrsno data10.00 miPartly Cloudy79°F70°F75%1015.9 hPa

Link to 5 minute data for KNRB

Wind History from NRB (wind in knots)
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Last 24hrNE10NE10N9NE14NE15NE17N17N17
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1 day agoS3S3S3NW5N4NE8NE9NE10NE9NE11NE10E11E10--E10E9NE8NE6E6NE5N3N4NE7NE11
2 days agoCalmW3CalmCalmNE4NE7NE8E9NE8E8E10E12E8E10E8E9E8SE8SE7SE5CalmS3SE5Calm

Tide / Current Tables for Jacksonville Beach, Florida
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Jacksonville Beach
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Mon -- 02:37 AM EDT     Moonrise
Mon -- 04:35 AM EDT     4.44 feet High Tide
Mon -- 06:58 AM EDT     Sunrise
Mon -- 10:59 AM EDT     -0.07 feet Low Tide
Mon -- 05:01 PM EDT     Moonset
Mon -- 05:17 PM EDT     5.48 feet High Tide
Mon -- 07:55 PM EDT     Sunset
Mon -- 11:52 PM EDT     0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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11.92.93.84.44.443.22.110.2-0.10.41.52.84.155.55.44.73.72.41.30.5

Tide / Current Tables for St. Johns River Entrance, Florida Current (2) (expired 1999-12-31)
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St. Johns River Entrance
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Mon -- 02:37 AM EDT     Moonrise
Mon -- 02:53 AM EDT     0.00 knots Slack
Mon -- 04:51 AM EDT     1.35 knots Max Flood
Mon -- 06:58 AM EDT     Sunrise
Mon -- 07:14 AM EDT     -0.00 knots Slack
Mon -- 10:09 AM EDT     -2.27 knots Max Ebb
Mon -- 02:37 PM EDT     0.00 knots Slack
Mon -- 05:01 PM EDT     Moonset
Mon -- 05:19 PM EDT     2.23 knots Max Flood
Mon -- 07:55 PM EDT     Sunset
Mon -- 08:17 PM EDT     -0.00 knots Slack
Mon -- 11:03 PM EDT     -2.19 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.5-1.1-0.70.111.30.90.2-0.8-1.8-2.3-2.1-1.6-1-0.40.31.42.22.11.40.4-0.9-1.9-2.2

Weather Map and Satellite Images
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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.
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Wind Forecast for Jacksonville, FL (4,6,7,8)
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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.