Friday, August23, 2019 L-36.com


Marine Weather and Tides
St. Marys, 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 6:56AMSunset 8:01PM Friday August 23, 2019 9:19 AM EDT (13:19 UTC) Moonrise 11:58PMMoonset 1:02PM Illumination 45% Phase: Third Quarter Moon; Moon at 23 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- 320 Am Edt Fri Aug 23 2019
Today..East southeast winds around 5 knots becoming east 10 knots in the afternoon. Seas 2 to 3 feet. Dominant period 7 seconds. Inland waters a light chop.
Tonight..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 6 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Saturday..East winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 6 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Saturday night..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 6 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Sunday..East northeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 7 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Sunday night and Monday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Showers and a chance of Thunderstorms.
Monday night..South southwest winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Tuesday..South southwest winds 5 to 10 knots. Seas 2 to 3 feet. Showers and a chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 320 Am Edt Fri Aug 23 2019
Synopsis.. Atlantic ridge extending across the waters will slowly weaken and shift eastward as weak low pressure near the northern bahamas slowly organizes and moves northwestward towards the florida peninsula. This system will pivot northward and northeastward during the weekend, passing east of our local waters as it continues to gradually organize. Prevailing onshore winds this weekend will shift to southwesterly by Tuesday as a frontal boundary sinks southward towards the georgia waters.
Gulf stream.. The approximate location of the west wall of the gulf stream as of aug 22, 2019 at 1200 utc... 61 nautical miles east southeast of flagler beach. 72 nautical miles east of saint augustine beach. 84 nautical miles east of jacksonville beach. 92 nautical miles east of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near St. Marys, GA
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location: 30.72, -81.55     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 230713
afdjax
area forecast discussion
national weather service jacksonville fl
313 am edt Fri aug 23 2019

Near term Today and tonight... Ridging aloft will provide
hot and mostly dry conditions again today while weak low pressure
meanders to the south near SE fl and the northern bahamas.

Relatively dry air will limit shower storm activity today. Best
rain chances will be this afternoon over southern zones of NE fl
as moisture starts to increase from the south. Afternoon
temperatures will reach near 90 degrees at the beaches and mid 90s
inland. High pressure will start to weaken this evening and
overnight with an increasing easterly flow bringing a chance of
coastal showers to flagler st. Johns counties late tonight.

Short term Saturday through Monday... Wave expected to be
along central florida coast Saturday, then to the northeast of
the region Sunday afternoon. Moisture will increase across the
region Saturday due to the proximity of the wave, with scattered
convection anticipated. With the system expected to be to the
northeast on Sunday, the region would be on the subsidence side,
leading to decreased chance for convection. At this point, given
uncertainty in movement and intensity of this system will favor
scattered activity for Sunday. A trough will extend from this
system across forecast area into Monday. Will keep precipitation
chances in the scattered to numerous range on Monday, due to the
combination of diurnal heating and boundary convergence.

Temperatures will trend near to slightly above normal this period.

Long term Monday night through Thursday... Troughing lingers
into Tuesday, with high pressure building from the south. With the
trough will favor precipitation chances in the scattered to
numerous range Tuesday. A cold front is expected to push southeast
into region Wednesday, then slowly move southeast across area
through Thursday. Will favor convective chances in the scattered
to numerous range with the front.

Temperatures will trend near to slightly above normal this period.

Aviation Patchy inland fog early this morning with possible
ifr MVFR vsbys til 12z. OtherwiseVFR conditions expected today.

Showers and storms will be mostly isolated today so will leave
out of forecast due to low probabilities.

Marine Atlantic ridge across the waters today will start to
weaken tonight and shift eastward. Weak low pressure near the
northern bahamas will slowly organize and move NW to the florida
peninsula and then shift east of our waters this weekend and early
next week. East southeast winds will increase to near 15 knots
with seas increasing up to 4 feet.

Rip currents: low risk today becoming moderate risk this weekend
as easterly winds and surf increase.

Preliminary point temps pops
Amg 94 73 94 73 20 10 40 40
ssi 90 79 90 77 10 10 20 20
jax 93 74 91 76 10 10 20 20
sgj 89 78 89 75 10 20 30 20
gnv 94 73 92 74 30 10 30 20
ocf 94 73 91 74 30 20 50 20

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Zibura 23


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 5 mi49 min 85°F 86°F1018.6 hPa
41112 - Offshore Fernandina Beach, FL (132) 14 mi19 min 83°F1 ft
NFDF1 22 mi49 min NE 1 G 1.9 78°F 1019.6 hPa
BLIF1 23 mi49 min Calm G 1.9 84°F 1018.8 hPa84°F
DMSF1 23 mi49 min 85°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 23 mi49 min NW 1.9 G 2.9 81°F 85°F1018.2 hPa
LTJF1 24 mi49 min 81°F
JXUF1 26 mi49 min 84°F
SAXG1 - Sapelo Island Reserve, GA 50 mi79 min Calm 80°F 1018 hPa (+2.0)77°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 59 mi29 min Calm G 1.9 83°F 82°F2 ft1018.2 hPa (+1.7)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, FL9 mi24 minno data10.00 miFair82°F77°F85%1018.3 hPa
Jacksonville International Airport, FL17 mi23 minN 010.00 miMostly Cloudy81°F77°F88%1017.9 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL24 mi27 minN 010.00 miPartly Cloudy84°F75°F77%1017.8 hPa

Link to 5 minute data for KFHB

Wind History from FHB (wind in knots)
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Last 24hr------------------------------------------------
1 day ago------------------------------------------------
2 days ago--CalmSE5SE7E8E10SE7SE6E5E9E4SE4SE6SE8--------------------

Tide / Current Tables for St. Marys, St. Marys River, Florida
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St. Marys
Click for Map
Fri -- 12:18 AM EDT     Moonrise
Fri -- 03:01 AM EDT     5.21 feet High Tide
Fri -- 06:57 AM EDT     Sunrise
Fri -- 09:11 AM EDT     0.49 feet Low Tide
Fri -- 10:58 AM EDT     Last Quarter
Fri -- 02:02 PM EDT     Moonset
Fri -- 03:34 PM EDT     5.78 feet High Tide
Fri -- 07:59 PM EDT     Sunset
Fri -- 09:59 PM EDT     1.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.34.24.95.254.231.80.90.50.71.62.84.15.15.75.75.24.33.121.31.11.4

Tide / Current Tables for St. Johns River Entrance, Florida Current (3)
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St. Johns River Entrance
Click for Map
Fri -- 12:18 AM EDT     Moonrise
Fri -- 02:08 AM EDT     1.56 knots Max Flood
Fri -- 04:47 AM EDT     -0.00 knots Slack
Fri -- 06:57 AM EDT     Sunrise
Fri -- 07:19 AM EDT     -1.76 knots Max Ebb
Fri -- 10:58 AM EDT     Last Quarter
Fri -- 11:02 AM EDT     0.00 knots Slack
Fri -- 02:02 PM EDT     Moonset
Fri -- 02:36 PM EDT     2.09 knots Max Flood
Fri -- 05:43 PM EDT     -0.00 knots Slack
Fri -- 07:59 PM EDT     -1.54 knots Max Ebb
Fri -- 07:59 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.31.11.61.30.6-0.2-1.2-1.7-1.6-1.1-0.5-00.41.21.921.50.7-0.3-1.2-1.5-1.3-0.9-0.5

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 (9,2,3,4)
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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.