Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
Kings Bay Base, GA

Version 3.4
NOTICE
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 6:54AMSunset 8:03PM Wednesday August 21, 2019 8:10 PM EDT (00:10 UTC) Moonrise 10:43PMMoonset 11:09AM Illumination 62% Phase: Waning Gibbous; Moon at 21 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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AMZ450 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- 304 Pm Edt Wed Aug 21 2019
Tonight..South winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop.
Thursday..South winds around 5 knots becoming southeast in the afternoon. 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 a light chop.
Friday..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Friday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 6 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Saturday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 7 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Saturday night..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Sunday and Sunday night..East northeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Monday..Northeast winds around 5 knots becoming east southeast in the afternoon. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 304 Pm Edt Wed Aug 21 2019
Synopsis.. Surface high pressure will extend over north florida through Thursday. A broad area of low pressure will approach the southeast florida atlantic coast late Friday, then begin to lift northward into the 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 Kings Bay Base, GA
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location: 30.77, -81.48     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 211945
afdjax
area forecast discussion
national weather service jacksonville fl
345 pm edt Wed aug 21 2019

Near term (through Thursday night)
This afternoon eve...

convection rather sparse across NE fl this afternoon due
to slightly drier over this area. Storms expected to be
more scattered across the i-75 corridor into inland SE ga
late this afternoon into the early eve where best convergence
and deepest moisture will be.

Thursday Thursday night...

a bermuda ridge axis will be near the state border while
there will be a lingering trough across SE ga. This will
yield a light flow regime across the area with seabreezes
and outflows able to push inland during the afternoon.

Models indicate slightly drier air will continue across
ne fl while pwats remain near to slightly above 2 inches
across SE ga. Thus highest pops will be across inland
se ga during the afternoon where deepest moist and best
convergence will be with isolated pops elsewhere. Near
climo temps.

Short term (Friday-Saturday night)
The ridge axis will nudge north across SE ga and weaken
some as a cold front begins to slide south towards SE ga
and a tropical wave moves across south fl. This will
yield a light onshore flow across the area which will
enable the east coast seabreeze to penetrate well inland
during the afternoon and evening. Models continue to
indicate slightly drier air will linger across NE fl
while moisture will be deeper across SE ga (near front)
and the far SE (near tropical wave) resulting in
higher pops (mainly diurnal) there. Temps will be
near to slightly above normal.

Long term (Sunday-Wednesday)
Potential wet pattern shaping up during the period as the
aforementioned cold front stalls washes out over the region
and the tropical wave over south fl moves offshore. The
nhc gives the disturbance a 20 percent chance of development
as it moves offshore early next week. Pops will be high
this period given the deep tropical moisture in the area
in combination with the stalled boundary and wave. Convection
will be mainly diurnal driven but may also have ocnl periods
of coastal showers. Temps will average slightly below normal
due to cloud cover.

Aviation Vfr conditions expected at coastal terminals including
ssi, crg and sgj through tomorrow morning under ese onshore flow
this afternoon near 10 kts. Tonight, land breeze develops which
will back winds ssw with speeds < 5 kts after 04z. Best chance of
afternoon restrictions today will focus inland with shower and
isolated thunderstorm activity, with highest chances at vqq and
gnv between 19-01z. Light south winds becomes calm inland through
midnight with lingering debris clouds gradually fading, but high
cirrus will continue overnight. Based on persistence, included
restrictions to MVFR at vqq after 08z thu.

Marine A bermuda ridge axis will be across the waters
this week bringing a south to southeast flow across the waters
with seas of 2 to 3 feet. A front will stall out across the
waters by the latter weekend into early next week while a
tropical wave moves offshore bringing an increase in shower
and thunderstorm activity.

Rip currents: low risk expected through Thursday.

Preliminary point temps pops
Amg 73 92 73 93 10 30 20 20
ssi 76 90 77 90 0 10 10 20
jax 73 92 73 92 0 20 10 10
sgj 74 89 75 89 0 20 10 10
gnv 72 91 73 91 20 20 20 20
ocf 72 91 73 91 20 20 20 20

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Pp ae bn


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 7 mi59 min 89°F 86°F1018.7 hPa
41112 - Offshore Fernandina Beach, FL (132) 11 mi71 min 84°F2 ft
BLIF1 26 mi53 min ESE 7 G 9.9 86°F 1019.2 hPa78°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 26 mi53 min ESE 7 G 11
DMSF1 27 mi53 min 85°F
LTJF1 27 mi53 min 85°F
NFDF1 27 mi53 min E 8 G 9.9 84°F 1020.1 hPa
JXUF1 30 mi53 min 85°F
SAXG1 - Sapelo Island Reserve, GA 46 mi71 min SSE 8 84°F 1017 hPa (-1.0)74°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 54 mi81 min S 9.7 G 12 83°F 84°F2 ft1017.8 hPa (-1.1)77°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fernandina Beach Municipal Airport, FL11 mi36 minno data10.00 miFair84°F75°F77%1017.9 hPa
Jacksonville International Airport, FL22 mi75 minSE 1010.00 miPartly Cloudy87°F71°F59%1017.5 hPa

Link to 5 minute data for KFHB

Wind History from FHB (wind in knots)
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Last 24hrSE4SE6SE8SE9S3--------------------------------------
1 day agoSE3CalmW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE5SE7E10E10SE7SE6E5E9E4
2 days agoSW8W6SW7SW8SW6S5S7S8S9S6SW4CalmW6SW6S7S6SW9SW10NE4E4SE4SE7SE7SE4

Tide / Current Tables for Seacamp Dock, Cumberland Island, Georgia
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Seacamp Dock
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Wed -- 01:07 AM EDT     5.92 feet High Tide
Wed -- 06:55 AM EDT     Sunrise
Wed -- 07:05 AM EDT     0.47 feet Low Tide
Wed -- 12:08 PM EDT     Moonset
Wed -- 01:31 PM EDT     6.04 feet High Tide
Wed -- 07:32 PM EDT     0.99 feet Low Tide
Wed -- 08:01 PM EDT     Sunset
Wed -- 11:42 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.55.95.74.83.31.90.90.50.81.83.14.35.3665.44.22.81.71.11.11.72.73.8

Tide / Current Tables for St. Johns River Entrance, Florida Current (3)
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St. Johns River Entrance
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Wed -- 12:27 AM EDT     1.90 knots Max Flood
Wed -- 03:15 AM EDT     -0.00 knots Slack
Wed -- 05:44 AM EDT     -1.88 knots Max Ebb
Wed -- 06:55 AM EDT     Sunrise
Wed -- 09:34 AM EDT     0.00 knots Slack
Wed -- 12:09 PM EDT     Moonset
Wed -- 12:53 PM EDT     2.08 knots Max Flood
Wed -- 03:52 PM EDT     -0.00 knots Slack
Wed -- 06:13 PM EDT     -1.71 knots Max Ebb
Wed -- 08:02 PM EDT     Sunset
Wed -- 10:19 PM EDT     0.00 knots Slack
Wed -- 11:42 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.81.81.10.3-0.8-1.7-1.9-1.5-0.9-0.30.20.91.72.11.60.9-0.1-1.2-1.7-1.6-1.1-0.5-0.10.3

Weather Map and Satellite Images
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wmap_A
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (20,4,5,8)
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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.