Tuesday, October27, 2020
Privacy Policy
L-36.com

Marine Weather and Tides
St. Simons, GA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:36AMSunset 6:42PM Tuesday October 27, 2020 10:36 AM EDT (14:36 UTC) Moonrise 4:03PMMoonset 2:59AM Illumination 82% Phase: Waxing Gibbous; Moon at 11 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
    EDIT      (on/off)   Help
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- 223 Am Edt Tue Oct 27 2020
Today..East winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 5 seconds. A moderate chop on the intracoastal waters. Slight chance of showers. Slight chance of Thunderstorms in the afternoon.
Tonight..East winds 5 to 10 knots. Seas 3 to 4 feet with a dominant period 5 seconds. Mostly smooth on the intracoastal waters.
Wednesday..Southeast winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 5 seconds. A moderate chop on the intracoastal waters.
Wednesday night..Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A light chop on the intracoastal waters.
Thursday..South winds 15 to 20 knots. Seas 3 to 5 feet. Choppy on the intracoastal waters.
Thursday night..Southwest winds 15 to 20 knots becoming west after midnight. Seas 3 to 4 feet. Slight chance of showers and Thunderstorms.
Friday..Northwest winds 15 to 20 knots becoming north 10 to 15 knots in the afternoon. Seas 3 to 4 feet.
Friday night..Northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Saturday..Northeast winds 15 to 20 knots. Seas 4 to 6 feet. Slight chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 223 Am Edt Tue Oct 27 2020
Synopsis.. Breezy east-northeasterly winds and elevated seas will continue today as high pressure remains to the north of the area. Meanwhile, hurricane zeta is expected to track northwestward from the yucatan peninsula into the south central gulf of mexico today and then move northward Tuesday night and Wednesday. Zeta will impact the northern gulf coast on Wednesday night, resulting in our winds shifting to southerly and gradually increasing. Remnants from zeta will accelerate through the lower tennessee valleys on Thursday and Thursday night, with a strong cold front expected to cross our local waters early Friday.
Gulf stream.. The approximate location of the west wall of the gulf stream as of oct 27, 2020 at 1200 utc... 46 nautical miles east northeast of flagler beach. 53 nautical miles east northeast of saint augustine beach. 53 nautical miles east of jacksonville beach. 70 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near St. Simons, GA
   Hourly   EDIT   Help
location: 31.13, -81.39     debug


Area Discussion for - Jacksonville, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS62 KJAX 271147 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 747 AM EDT Tue Oct 27 2020

UPDATE.

A stalled frontal boundary will extend west to east across NE FL Today, with surface high pressure to the northeast, and tropical system named Zeta in the gulf.

Moisture will pool along the frontal boundary for a few showers across the area this morning. Additional moisture will lift northeast from the gulf system, providing an increased chance for showers, and the possibility for a few thunderstorms this afternoon.

Temperatures will continue to trend above normal Today.

AVIATION. [Through 12Z Wednesday]

Moisture will persist along a stalled frontal boundary Today, which will yield the potential for restrictions this morning into early afternoon in stratus. There is a chance for showers and a few thunderstorms this afternoon, while conditions are expected to prevail at VFR. Conditions will lower Tonight, as lower level moisture results in restrictions.

PREV DISCUSSION [345 AM EDT].

NEAR TERM [Through Tonight].

Isolated coastal showers will continue to move onshore along a stalled frontal boundary impacting the I-95 corridor near the Florida/Georgia border this morning. A mid/upper ridge over the region will begin to develop southerly flow aloft lifting tropical moisture into the area. This increase in moisture and instability will lead to scattered showers and isolated thunderstorms this afternoon with the best chances over northeast Florida. Meanwhile, TC Zeta moves north-northwestward from the northeast Yucatan Peninsula into the southern Gulf along the southwestern periphery of the ridge. Above climo temperatures continue with highs in the 80s and overnight lows in the upper 60s to low 70s.

SHORT TERM [Wednesday Through Thursday].

Wednesday . Warm front lifts north of the region and humid Southeast low level flow at 10-15 mph will push Max Temps to just below record High levels in the upper 80s and allow for widely scattered showers and storms to develop over inland areas of NE FL/SE GA by the afternoon hours.

Wed Night . As TC Zeta tracks west of the region the warm/humid southerly flow at 5-10 mph will lead to much above normal lows temps in the lower/middle 70s. A few isolated showers/storms possible over far inland NE FL/SE GA but mainly dry conditions with low level cloudiness developing overnight.

Thursday . TC Zeta tracks NW of the region across the SE US and will increase the south to southwest low level winds to 15 to 25 mph with gusts to 35 mph at times. This will push Max Temps to record levels well into the 80s/near 90 for most locations by the early afternoon hours. The "tropical tail" of moisture will bring a round of scattered to numerous showers and storms moving from NW to SE across the region from the mid afternoon through evening hours before likely pushing into the Atlc Coastal waters around midnight. Some of these storms could be strong with gusty winds of 40-50 mph the main threat and some brief heavy downpours as well. Clearing skies expected during the overnight hours and Northwest winds should usher in some cooler temps by sunrise Friday morning with even some upper 50s for inland SE GA and 60s elsewhere.

LONG TERM [Friday Through Monday].

Friday . Cooler and drier conditions following the frontal passage under Sunny skies and breezy Northwest to North winds around 15 mph. Max temps closer to seasonable values in the mid to upper 70s and lows Friday Night in the 50s.

Saturday/Sunday . High pressure builds north of the region into the Carolinas and low level flow becomes a breezy Northeast onshore flow at 15-20 mph along the Atlc Coastal Counties with a few coastal showers possible at times, but overall rainfall chances remain low with inland areas remaining dry. Seasonable temps continue with most highs in the 70s except for some lower 80s across inland NE FL and lows in the 50s/lower 60s.

Monday . Upper level trof passage through the SE US clears out any lingering moisture offshore and low level winds back to the North and remain breezy at 15-20 mph and temps cool a bit more with Highs only reaching the lower to middle 70s under Mostly Sunny skies and temps falling Monday Night into the 40s across inland SE GA/Suwannee River Valley and 50s elsewhere.

MARINE.

Breezy east-northeasterly winds and elevated seas will continue today as high pressure remains to the north of the area. Meanwhile, Hurricane Zeta is expected to track northwestward from the Yucatan Peninsula into the south central Gulf of Mexico today and then move northward Tuesday night and Wednesday. Zeta will impact the northern Gulf coast on Wednesday night, resulting in our winds shifting to southerly and gradually increasing. Remnants from Zeta will accelerate through the lower Tennessee Valleys on Thursday and Thursday night, with a strong cold front expected to cross our local waters early Friday. Winds will shift to the west and northwest on Friday and then increase from the northeast Friday night and Saturday.

Rip Currents: Moderate risk for rip currents at all area beaches for today and Wednesday.

PRELIMINARY POINT TEMPS/POPS.

AMG 82 69 87 72 86 / 20 10 20 10 40 SSI 77 72 81 74 85 / 20 10 10 0 10 JAX 81 72 87 72 89 / 20 10 10 0 20 SGJ 82 74 86 73 89 / 20 10 10 10 10 GNV 85 71 89 72 89 / 40 20 20 10 30 OCF 86 72 90 72 89 / 50 20 20 10 20

JAX WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AM . None.


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 21 mi37 min ENE 9.9 77°F 1021 hPa (+1.0)72°F
41112 - Offshore Fernandina Beach, FL (132) 30 mi37 min 78°F 78°F3 ft
FRDF1 - 8720030 - Fernandina Beach, FL 32 mi49 min ENE 4.1 G 8 82°F 78°F1020.9 hPa
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 33 mi47 min ENE 14 G 16 76°F 76°F3 ft1021.2 hPa (+0.9)72°F

Wind History for Fernandina Beach, FL
(wind in knots)    EDIT      (on/off)   Help
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
Last
24hr
NE3
G10
N8
G12
NE9
G12
NE4
G10
NE4
G10
N7
G12
NE4
G10
NE3
G10
NE4
G7
NE4
G8
NE2
G9
NE5
G9
NE2
G8
NE2
G6
NE2
G6
NE3
G7
NE3
G8
NE3
G6
NE3
NE4
NE3
G8
NE3
G6
NE4
G7
E2
G5
1 day
ago
NW1
NE2
G6
E6
NE5
G9
N8
G11
E3
G7
E4
E4
G7
E1
E1
--
SE2
E1
E1
E1
E1
E1
NW1
N3
NE1
NE3
G6
NE3
G6
NE5
NE2
G8
2 days
ago
N5
G8
NE5
G9
NE4
G10
NE5
G9
E6
G11
NE4
G9
NE4
G7
E2
G5
E3
G6
E2
G7
E4
G9
--
SE1
SE3
SE3
SE2
SE3
E2
SE1
SE1
--
NW1
N3
NW2

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick, Malcolm McKinnon Airport, GA1 mi44 minNE 1210.00 miMostly Cloudy77°F73°F88%1021.5 hPa
Brunswick / Glynco, GA10 mi42 minENE 1110.00 miOvercast76°F70°F82%1021.3 hPa

Link to 5 minute data for KSSI

Wind History from SSI (wind in knots)
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
Last 24hrNE13
G17
NE12E11E10E12NE13E12NE9NE7NE9NE8NE8NE7NE8NE8NE7NE6NE8NE7NE8NE8NE7NE8NE12
1 day agoE5E11E4E6E8E6E8E6E4CalmCalmCalmCalmCalmCalmCalmCalmN5N4CalmN4N5NE4NE9
2 days agoE7E10NE8E9E9E9E9E5E7E8E8E4CalmCalmSE6SE6SE5SE6CalmCalmCalmNW5CalmCalm

Tide / Current Tables for St. Simons Light, Georgia
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
St. Simons Light
Click for Map
Tue -- 12:19 AM EDT     0.93 feet Low Tide
Tue -- 03:59 AM EDT     Moonset
Tue -- 06:07 AM EDT     6.75 feet High Tide
Tue -- 07:37 AM EDT     Sunrise
Tue -- 12:37 PM EDT     1.15 feet Low Tide
Tue -- 05:03 PM EDT     Moonrise
Tue -- 06:38 PM EDT     7.01 feet High Tide
Tue -- 06:40 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
11.12.13.65.16.36.76.55.84.73.42.11.31.21.93.24.766.976.45.442.5

Tide / Current Tables for St. Johns River Entrance, Florida Current (3)
   EDIT      (on/off)   Help   One Week of Data
St. Johns River Entrance
Click for Map
Tue -- 03:01 AM EDT     0.01 knots Slack
Tue -- 04:00 AM EDT     Moonset
Tue -- 05:33 AM EDT     1.99 knots Max Flood
Tue -- 07:37 AM EDT     Sunrise
Tue -- 08:37 AM EDT     -0.00 knots Slack
Tue -- 12:00 PM EDT     -1.52 knots Max Ebb
Tue -- 03:23 PM EDT     0.00 knots Slack
Tue -- 05:03 PM EDT     Moonrise
Tue -- 05:55 PM EDT     2.04 knots Max Flood
Tue -- 06:41 PM EDT     Sunset
Tue -- 08:58 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
-1.5-1.4-1-01.21.921.60.7-0.4-1.1-1.4-1.5-1.4-1.2-0.50.81.821.81.1-0-1-1.4

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS 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
Ground Weather Radar Station Jacksonville, FL
   (on/off)   Help
weather_mapweather_map weather_map


Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. Google supplies the ads on this site. Because I do not track who you are, I cannot customize how these ads are served. They may be personalized to improve the ad experience. If you do not want personalized ads, please adjust the settings on the Google site HERE. NOTE: The best I can determine, this site is not subject to CCPA but I am doing my best to comply anyway.
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 numerous 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.