Sunday, July5, 2020
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Marine Weather and Tides
Darien, GA

Version 3.4
NOTICE
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 6:26AMSunset 8:35PM Sunday July 5, 2020 12:37 AM EDT (04:37 UTC) Moonrise 8:19PMMoonset 5:41AM Illumination 100% Phase: Full Moon; Moon at 14 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- 837 Pm Edt Sat Jul 4 2020
Rest of tonight..Southeast to south winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Sunday..South southeast winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. Showers and Thunderstorms likely.
Sunday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. Showers likely and a slight chance of Thunderstorms.
Monday..South winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. Showers and Thunderstorms.
Monday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Tuesday..South southwest winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. Showers and Thunderstorms.
Tuesday night..Southwest winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Wednesday..Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Showers and Thunderstorms likely.
Wednesday night..Southwest winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Thursday..South southwest 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- 837 Pm Edt Sat Jul 4 2020
Synopsis.. A trough of low pressure will linger across the waters through this weekend then lift northward on Monday. Another trough of low pressure and weak cool front will move into the region Wednesday and Thursday. This will lead to a continued unsettled weather pattern with scattered to numerous showers and Thunderstorms each day through next week.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jul 02, 2020 at 1200 utc... 67 nautical miles east of flagler beach. 74 nautical miles east of saint augustine beach. 85 nautical miles east of jacksonville beach. 105 nautical miles east of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Darien, GA
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location: 31.32, -81.36     debug


Area Discussion for - Charleston, SC
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FXUS62 KCHS 050215 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 1015 PM EDT Sat Jul 4 2020

SYNOPSIS. A stationary front will linger south of the area through the weekend, then lift back northward by early next week. Low pressure will then bring unsettled weather to the region for much of next week.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/. As of 1010 PM: I will updated to remove headlines for the Coastal Flood Advisory. The forecast remains on track. No additional changes needed with this updated package.

As of 835 PM: KCLX indicated that the sea breeze has pushed west of the forecast area, with no showers over the CWA. I will update the forecast to remove the mention of showers this evening and make minor temperature tweaks.

As of 6 PM: KCLX detected isolated showers along a sea breeze pushing inland across Berkeley and Dorchester Counties. The latest run of the HRRR indicates that a few showers will develop along the breeze across SE GA over the next hour or two. Given the state of the Cu field west of the sea breeze and latest radar trends, I will update the forecast to add SCHC PoPs to the forecast through the early evening.

Previous Discussion: A weak mid-level low will be over the Lower MS Valley, causing northwest flow overhead. At the surface, weak high pressure across our area will keep a stationary front located to our south. Though, models indicate moisture and some lift associated with the front should approach our southernmost locations late tonight. Hence, we have slight chance POPs for McIntosh County and vicinity. A rumble of thunder also isn't out of the question given the instability in place. But nothing severe. Elsewhere, plenty of dry air in place should lead to a rain free night. Otherwise, light onshore flow is expected to generate some low clouds later tonight. Though, these shouldn't cause visibility issues outside of the smoke from the fireworks. Lows will mostly be in the 70s.

SHORT TERM /6 AM SUNDAY MORNING THROUGH TUESDAY/. All models continue to indicate a more active/unsettled pattern to develop during this period. A broad upper low over the lower MS River valley will slowly move northeastward toward the region through early next week. As this system moves toward the area, it brings higher values of deep layer moisture and instability. This will result in an increasing trend in PoPs.

Sunday will begin the transition toward increasing PoPs, starting from south to north. Have kept chance PoPs mainly over the GA region. Monday and Tuesday, models continue to go likely to categorical PoPs. A little uncomfortable going with likely to categorical PoPs that far out, but models have been consistently trending in that direction for the last several runs. Rainfall totals through Tuesday expected to be 1-2 inches south of the Savannah River, and 1/2-1 inch north of the river.

High temperatures are expected to be near normal on Sunday, then slightly below normal for Monday and Tuesday due to increased cloud cover and PoPs. Lows in the lower to mid 70s.

LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/. Low pressure is forecast to linger in the region mid to late week. There are still large discrepancies between models regarding the position and evolution of the low, however the overall pattern favors higher than normal rain chances, especially during the mid- week time frame. High temperatures will average slightly cooler than normal, while lows stay a couple degrees above normal.

AVIATION /02Z SUNDAY THROUGH THURSDAY/. VFR. Smoke from fireworks should remain localized and are not expected to impact the terminals.

Extended Aviation Outlook: Sunday: Mainly VFR conditions expected. Monday through Thursday: Periods of flight restrictions likely, especially during the afternoon/early evening within scattered to numerous showers and thunderstorms.

MARINE. Tonight: Weak high pressure over the area will keep a stationary front well to our south. The weak pressure gradient should keep sustained winds 10 kt or less. Seas will be 1-2 ft.

LONG TERM MARINE . SUNDAY THROUGH THURSDAY . No highlights expected Sunday through Wednesday with generally southerly winds of 15 knots or less and seas 3 feet or less. Scattered to numerous showers and thunderstorms expected. Models indicate a developing surface low later Wednesday and Thursday, possibly tracking inland/well west of the waters. The track and intensity of this low pressure system will impact how strong the winds will get. Right now, the latest model trends indicate southwesterly winds by Thursday, possibly increasing to the 15 to 20 knots. However, due to uncertainty, the forecast for this period was left unchanged.

TIDES/COASTAL FLOODING. Astronomical influences will maintain higher than normal tide levels into early next week. Minor coastal flooding will be possible around the time of the evening high tides, primarily along the South Carolina coast. In addition, the risk for heavy rain early next week will only add to any tidal flooding.

CHS WATCHES/WARNINGS/ADVISORIES. GA . None. SC . None. MARINE . None.

NEAR TERM . NED SHORT TERM . LONG TERM . ETM AVIATION . BRM MARINE . TIDES/COASTAL FLOODING .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 8 mi97 min SSE 1.9 80°F 1014 hPa (+1.0)75°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 27 mi47 min SE 7.8 G 9.7 82°F 83°F1 ft1013.9 hPa (+1.6)75°F
41112 - Offshore Fernandina Beach, FL (132) 42 mi41 min 83°F1 ft
FRDF1 - 8720030 - Fernandina Beach, FL 45 mi49 min Calm G 1 83°F 83°F1014 hPa

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick / Glynco, GA7 mi42 minN 05.00 miFog/Mist74°F71°F94%1014.2 hPa
Brunswick, Malcolm McKinnon Airport, GA12 mi44 minSSW 310.00 miA Few Clouds80°F73°F79%1014.1 hPa

Link to 5 minute data for KBQK

Wind History from BQK (wind in knots)
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Last 24hrCalmCalmCalmNW3N3CalmCalmNE5E7NE7E8E10
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1 day agoN5CalmCalmCalmCalmN6CalmNE3NE7E5E9E12NE11NE12E12
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Tide / Current Tables for Jones Creek entrance, Hampton River, Georgia
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Jones Creek entrance
Click for Map
Sun -- 12:44 AM EDT     Full Moon
Sun -- 03:18 AM EDT     -0.43 feet Low Tide
Sun -- 06:26 AM EDT     Sunrise
Sun -- 06:40 AM EDT     Moonset
Sun -- 09:50 AM EDT     7.20 feet High Tide
Sun -- 03:18 PM EDT     -0.45 feet Low Tide
Sun -- 08:33 PM EDT     Sunset
Sun -- 09:19 PM EDT     Moonrise
Sun -- 10:24 PM EDT     8.59 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.83.31-0.3-0.20.92.64.45.96.97.26.44.82.80.8-0.4-0.20.92.64.66.57.98.58.4

Tide / Current Tables for Old Tower, Sapelo Island, Georgia
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Old Tower
Click for Map
Sun -- 12:44 AM EDT     Full Moon
Sun -- 03:18 AM EDT     -0.41 feet Low Tide
Sun -- 06:26 AM EDT     Sunrise
Sun -- 06:40 AM EDT     Moonset
Sun -- 08:58 AM EDT     6.85 feet High Tide
Sun -- 03:18 PM EDT     -0.43 feet Low Tide
Sun -- 08:33 PM EDT     Sunset
Sun -- 09:19 PM EDT     Moonrise
Sun -- 09:33 PM EDT     8.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.52.50.6-0.3-0.11.23.156.46.96.45.33.820.5-0.4-0.11.23.25.37.188.17.3

Weather Map
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wmap_A
GEOS Local Image of Southeast    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 Charleston, SC (0,6,7,8)
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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 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.