Friday, September17, 2021
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Marine Weather and Tides
Riceboro, GA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:10AMSunset 7:30PM Friday September 17, 2021 4:09 AM EDT (08:09 UTC) Moonrise 4:55PMMoonset 2:32AM Illumination 81% 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
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AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm, Including Grays Reef National Marine Sanctuary- 316 Am Edt Fri Sep 17 2021
Today..NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. A chance of tstms this afternoon.
Tonight..SE winds 5 to 10 kt. Seas 2 ft. A slight chance of showers and tstms in the evening.
Sat..N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 ft. A chance of showers and tstms.
Sat night..E winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Sun..E winds 5 to 10 kt. Seas 2 ft. Showers likely with a chance of tstms.
Sun night..E winds 10 kt. Seas 2 to 3 ft. A chance of tstms. Showers likely, mainly in the evening.
Mon..E winds 10 kt. Seas 2 to 3 ft. Showers with a chance of tstms.
Mon night..E winds 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Tue..E winds 10 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.
Tue night..E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 316 Am Edt Fri Sep 17 2021
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Weak high pressure will persist across inland areas while low pressure passes well offshore through late this week. High pressure will then expand across the region this weekend into early next week, before a cold front shifts across the area during the second half of next week.


7 Day Forecast for Marine Location Near Riceboro, GA
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location: 31.54, -81.26     debug


Area Discussion for - Charleston, SC
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FXUS62 KCHS 170755 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 355 AM EDT Fri Sep 17 2021

SYNOPSIS. Weak high pressure will persist across inland areas while low pressure passes well offshore through late this week. High pressure will then expand across the region this weekend into early next week, before a cold front shifts across the area during the second half of next week.

NEAR TERM /THROUGH TONIGHT/. Today: Aloft, the forecast area will sit in a weakly forced area situated between a low over the Southern Plains and a ridge over the Atlantic. At the surface, high pressure and weak northerly flow will prevail in the morning before the high retreats back to the north and leaves behind a rather nondescript setup for the afternoon. Despite having precipitable water values of nearly 2 inches, the weakly forced environment will result in limited diurnal convective coverage in most areas. There could be a little better coverage closer to the Altamaha River, but most areas will only see isolated to scattered showers and thunderstorms late this morning through sunset. The severe weather threat is almost non-existent, though there is some locally heavy rainfall potential thanks to minimal storm motion. Forecast highs range in the mid to upper 80s.

Tonight: Any lingering convection will steadily dissipate through the evening. Overnight, land areas should stay dry while there could be isolated to scattered showers across the coastal waters. Lows will be around 70 for most areas, with low to mid 70s at the coast.

SHORT TERM /SATURDAY THROUGH MONDAY/. The area will remain between the remnant circulation of Nicholas across the lower Mississippi River Valley through the weekend and a tropical disturbance at least a few hundred miles away from the coast shifting north-northeast and further away from the local area into early next week. Despite the presence of weak sfc high pressure across the Southeast United States and a mid-lvl ridge strengthening offshore, the pattern will be fairly wet as a persistent southerly flow reinforces PWATs around 2.25 inches into the area while h5 shortwave energy ripples aloft. Chances to numerous showers and thunderstorms remain in the forecast each day, while numerous to even widespread showers along with thunderstorms are possible Sunday and Monday afternoons during a time of peak diurnal heating and when the bulk of deepest moisture traverses the area. At this time, greatest precip coverage is anticipated across Southeast Georgia and convective activity is expected to remain sub- severe, although many locations could experience heavy downpours from thunderstorms this weekend and heading into early next week.

Given the extent of precip coverage and cloudiness each day, especially late weekend into early next week, afternoon high temps should peak in the mid-upper 80s Saturday, then mid 80s Sunday and Monday. Overnight lows should remain mild, generally ranging in the low-mid 70s away from the immediate coast.

LONG TERM /MONDAY NIGHT THROUGH THURSDAY/. A large mid-lvl ridge will be centered near or just off the East Coast early week while a large trough advances across the Central United States to the Northeast United States by the middle of next week. A cold front associated with the trough is expected to shift through the area heading into the second half of next week, likely bringing an end to a wet pattern in place during the first half of the week. Given the pattern and changes, expect chances to numerous showers/thunderstorms through Wednesday with greatest precip coverage occurring with diurnal heat maximum each day. Drier and slightly cooler conditions arrive Thursday and Friday, but a few showers/thunderstorms can not be ruled out each day. Temps will be noticeably cooler once fropa occurs, with highs in the low- mid 80s during the first half of the week becoming upper 70s/around 80 degrees during the second half of the week.

AVIATION /07Z FRIDAY THROUGH TUESDAY/. We begin the 06z TAF period with VFR conditions at KCHS, KJZI, and KSAV. The main forecast concern over the next few hours revolves around an area of showers south of KSAV that is slowly drifting north. Assuming it holds together, it would impact KSAV in the 08-11z time period with at least MVFR conditions. Otherwise, VFR conditions are likely to prevail through the day and into the evening. Scattered afternoon showers and thunderstorms will develop, but confidence in direct impacts is low.

Extended Aviation Outlook: Brief flight restrictions are possible at all terminals into early next week due to morning fog/stratus, while even greater chances of flight restrictions occur during showers and thunderstorms each day.

MARINE. Today through tonight: A weak gradient will persist across the local waters through the period. Winds should be at their max in the late afternoon and early evening hours, as they turn onshore and peak around 10 knots. Seas will average 2-4 feet this morning, then steadily diminish through tonight becoming 2-3 feet.

Saturday through Wednesday: Weak high pressure will persist inland as low pressure across the western Atlantic moves away from the region this weekend. The pattern will support a fairly weak pressure gradient across local waters this weekend and through early next week with onshore winds around 10-15 kt and seas of 1-3 ft. A coastal trough could then develop along the southern extent of high pressure by the middle of next week, gradually building seas up to 2-4 ft, highest across offshore Georgia waters.

Rip Currents: As tropical low pressure tracks offshore and further away from the region, swell could produce an elevated risk of rip currents this weekend.

TIDES/COASTAL FLOODING. For the upcoming early evening high tide (~6:15 pm), the tide level is expected to peak very close to 7 ft MLLW. A Coastal Flood Advisory could be needed.

Minor coastal flooding is possible through the weekend as astronomical influences and persistent northeasterly to easterly flow result in elevated tide levels.

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



NEAR TERM . BSH SHORT TERM . DPB LONG TERM . DPB AVIATION . BSH/DPB MARINE . BSH/DPB TIDES/COASTAL FLOODING .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 9 mi69 min NE 2.9 73°F 1017 hPa (-1.0)73°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 23 mi79 min S 5.8 G 7.8 76°F 83°F3 ft1016.6 hPa (-0.7)
FPKG1 - 8670870 - Fort Pulaski, GA 39 mi51 min 75°F 82°F1017.7 hPa

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick / Glynco, GA22 mi14 minNNW 310.00 miFair73°F72°F98%1016.6 hPa

Link to 5 minute data for KBQK

Wind History from BQK (wind in knots)
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Last 24hrNE3CalmCalmCalmCalmCalmN4SE7SW4E5NE8N4N4NE4NE5N6W4NW3NW3CalmCalmCalmCalmNE5
1 day agoCalmCalmCalmCalmCalmE4E7SE9SE6SE14SE12SE13
G18
SE11SE9SE11SE6SE4CalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalmCalmN4N5E5CalmE7SE5NE7E7E10E8SE7E3CalmCalmE3E3CalmCalmCalm

Tide / Current Tables for Dog Hammock, Sapelo River, Georgia
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Dog Hammock
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Fri -- 12:14 AM EDT     0.63 feet Low Tide
Fri -- 03:31 AM EDT     Moonset
Fri -- 06:10 AM EDT     7.21 feet High Tide
Fri -- 07:10 AM EDT     Sunrise
Fri -- 12:23 PM EDT     0.41 feet Low Tide
Fri -- 05:55 PM EDT     Moonrise
Fri -- 06:54 PM EDT     8.29 feet High Tide
Fri -- 07:27 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.92.13.75.46.77.26.964.631.40.50.61.73.35.26.988.37.86.64.92.9

Tide / Current Tables for South Newport River, Georgia
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South Newport River
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Fri -- 12:39 AM EDT     0.76 feet Low Tide
Fri -- 03:31 AM EDT     Moonset
Fri -- 06:14 AM EDT     7.49 feet High Tide
Fri -- 07:10 AM EDT     Sunrise
Fri -- 12:48 PM EDT     0.50 feet Low Tide
Fri -- 05:55 PM EDT     Moonrise
Fri -- 06:58 PM EDT     8.61 feet High Tide
Fri -- 07:27 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.81.83.45.36.87.57.36.45.13.620.80.51.3356.98.28.68.27.25.63.6

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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