Tuesday, December7, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Savannah, 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 5:21PM Tuesday December 7, 2021 7:59 PM EST (00:59 UTC) Moonrise 10:47AMMoonset 9:04PM Illumination 15% Phase: Waxing Crescent; Moon at 4 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
AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm, Including Grays Reef National Marine Sanctuary- 556 Pm Est Tue Dec 7 2021
Tonight..E winds 10 to 15 kt, becoming se 5 to 10 kt after midnight, then becoming S late. Seas 2 ft. A slight chance of showers.
Wed..SW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Seas 2 to 3 ft. A chance of tstms. Showers likely.
Wed night..NW winds 10 kt, becoming N after midnight. Seas 2 to 3 ft. A chance of showers in the evening.
Thu..NE winds 5 to 10 kt. Seas 2 ft.
Thu night..SE winds 5 kt. Seas 2 ft.
Fri..S winds 5 to 10 kt. Seas 2 ft. A slight chance of showers in the morning.
Fri night..S winds 10 kt. Seas 2 to 3 ft.
Sat..S winds 10 to 15 kt. Seas 2 to 3 ft.
Sat night..SW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers.
Sun..N winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers.
Sun night..NE winds 15 kt. Seas 3 to 4 ft. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 556 Pm Est Tue Dec 7 2021
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A cold front will sweep across the southeast u.s. Wednesday. High pressure will briefly linger before another cold front arrives this weekend.


7 Day Forecast for Marine Location Near Savannah, GA
   Hourly   EDIT   Help
location: 32, -81.15     debug


Area Discussion for - Charleston, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS62 KCHS 072343 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 643 PM EST Tue Dec 7 2021

SYNOPSIS. A cold front will sweep across the Southeast U.S. Wednesday. High pressure will briefly linger before another cold front arrives this weekend.

NEAR TERM /THROUGH 6 AM WEDNESDAY/. The wedge front is near the Altamaha River as of early evening and will waver in that region through the first part of the night. During the overnight period the front will attempt to move back north and should be back near the Savannah River or even north of there by daybreak. This could provide for a risk of some fog, especially over the coastal Georgia counties, where there is also some potential for sea fog.

Light rain and drizzle has been developing within a region of isentropic ascent near and not far north of the front this evening, and PoPs have been adjusted accordingly. In addition, given the southward momentum of the wedge front, we have tweaked some hourly temps downward, but min temps have been largely unaltered from previously.

Previous discussion . The wedge front is expected to stall somewhere across Southeast Georgia tonight, mostly likely in the vicinity of a Reidsville- Richmond Hill line. Weak overrunning will develop later this evening as the parent high slowly moves offshore of the Mid- Atlantic States. This should yield at least some spotty shower activity. 290-300K isentropic ascent is forecast to steadily increase after midnight in response to strengthening wind fields ahead of a shortwave digging across the Ohio and Tennessee Valleys. The coverage of showers will slowly increase overnight as a result, mainly across the western portions of the forecast area. Strong quasi-geostrophic forcing associated with interactions between the aforementioned shortwave and the right entrance region of the upper jet preceding it will generate a large band of showers across the central Carolinas into Georgia late tonight into early Wednesday. This activity will be approaching the far western zones as daybreak approaches, but the better rain chances look to hold off until after sunrise. Late night pops will range from 50-60% across the far west to 20-40% along the coast.

The temperature forecast remains complex. With the wedge front now losing its southward push in the absence of any large upstream pressure rises and the lack of diabatic reinforcement, there will likely be a large temperature gradient that remains in place overnight. Guidance appears more progressive in the northward progression of the wedge front as a warm front overnight, but there are uncertainties with rain expected to start falling into the core late. While some northward advancement is becoming more likely, now far north the warm front reaches is still very much unclear. This will have huge implications on the low temperature forecast. For now, the low temperature forecast has been trended warmer with lows ranging from the upper 40s adjacent to the CSRA and Southern Midlands to the upper 50s across the far south. Further adjustments will likely be needed as shorter term trends become more apparent and the ultimate positioning of the warm front hopefully becomes more clear.

SHORT TERM /WEDNESDAY THROUGH FRIDAY/. Wednesday: A shortwave trough will edge closer and push a cold front into the region. All the while, a surface low just off the coast will help enhance moisture across the western portion of the forecast area. In combination with plenty of QG forcing and shortwave energy in association with the approaching cold front, shower activity will gradually increase throughout the morning and likely persist through the afternoon. By sunset, the aforementioned front and trough will likely be just south of the area, allowing the area to quickly dry out. In regards to rainfall amounts, the entire area is expected to see at least some rain with some areas potentially seeing up to an inch, especially across the Charleston Tri-county and inland SE GA. There could be bouts of heavier rainfall, leading to some areas of ponding but no significant flooding is expected. Otherwise, there are still some questions of the extent of thunder but have added in mention across the entire area as there are some decent parameters in place to support at least a few rumbles. Instability will be lacking but K-indices and narrow cape profiles will enhance the chance of a few thunderstorms. Thunderstorms could begin by mid-morning and persist through the afternoon. For temperatures, SE GA will likely see temperatures in the mid 70s while temperatures across the northern tier of SE SC will likely only make it into the upper 50s. Overnight, temperatures will be in the upper 30 to low 40s inland with mid to upper 40s just along the coast.

Thursday and Friday: Surface high pressure will build in to the region and persist on Thursday, bringing a day of dry weather. Then on Friday, PWATs will gradually increase as shortwave energy moves through the area. The best chance for any showers will be across inland areas and SE SC where better moisture will be situated. Showers should diminish by sunset. Highs on Thursday will be in the upper 50s to upper 60s. Whereas on Friday, rapidly warming temperatures will support temperatures close to 80 across SE GA and low to mid 70s across SE SC. Will keep an eye out for potential record warmth.

LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/. On Saturday, a cold front will approach and then move rapidly through the area. Another round of showers will be possible along with isolated thunderstorms. For now, due to uncertainty, have left out any mention though. Thereafter, high pressure will build into the region and dry weather will prevail through early week. Another exceptionally warm day is expected on Saturday, then cooler temps expected thereafter. Low temperatures will be in the upper 40s to upper 50s on Saturday night then in the 30s to 40s on Sunday/Monday nights.

AVIATION /00Z WEDNESDAY THROUGH SUNDAY/. A complex scenario will occur at the terminals tonight and Wednesday as a frontal system impacts the area, resulting in MVFR or even IFR conditions through the 00Z TAF cycle.

Occasional -RA, -DZ and/or BR will impact KSAV this evening near a stationary front. All sites could then experience those conditions late tonight into Wednesday morning, as the front lifts northward. As the front drops south and southeast as a cold front Wednesday afternoon we look for widespread SHRA and scattered TSRA to occur. These conditions are shown at KSAV, KCHS and KJZI from about 16Z through 20Z, before the front moves offshore. Extended Aviation Outlook: VFR will return Wednesday night and then prevail through Saturday. There could be some flight restrictions associated with a cold front Saturday night.

MARINE. There is stronger pinching of NE and E winds behind the wedge front that is across the southern Georgia waters. We have adjusted winds to higher speeds early on, with even some gusts over the Atlantic waters off South Carolina to approach 20 kt at times.

Previous discussion . Tonight: The wedge front will stall across the Georgia waters this evening, then begin to lift back to the north late. East to northeast winds will prevail this evening then will become anywhere from east to south across the Georgia and far southern South Carolina waters, but most likely hold northeast along the Charleston County nearshore waters until just before daybreak. Speeds will settle into the 5-10 kt range with seas 1-3 ft, except 2-4 ft off the Charleston County coast.

Wednesday through Sunday: On Wednesday, winds will make a shift from the southwest to northwest ahead an approaching cold front on Wednesday. While winds will become slightly gusty over the waters, they are currently forecast to remain below Small Craft Advisory criteria. Seas will be 2 to 4 feet. There is a small chance of the development of sea fog on Wednesday morning. Although, it seems like more of a stratus build down situation with reduced visibilities in rain. Then for Thursday and Friday, southerly winds will prevail at 5 to 10 knots with seas 2 to 3 feet. On Saturday, another cold front will approach and pass through the region overnight/early Sunday, bringing less than ideal conditions to the coastal waters. Winds will likely surge and Small Craft Advisories will be possible.

Sea fog: There could be a window of opportunity for sea fog to form late tonight and Wednesday morning, especially on the Georgia waters as winds turn south and slightly warmer and humid air moves in prior to a cold front.

There is another chance for sea fog Friday night and Saturday ahead of a cold front given an abnormally warm and humid air mass within a southerly flow.

TIDES/COASTAL FLOODING. There is some chance for shallow coastal flooding with the late morning high tide Wednesday. If there is any rainfall during that time, which is possible, the situation would be aggravated.

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



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


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
FPKG1 - 8670870 - Fort Pulaski, GA 13 mi161 min E 12G13 60°F1019 hPa
SAXG1 - Sapelo Island Reserve, GA 41 mi59 min ENE 2.9 62°F 1019 hPa (+1.0)60°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 44 mi69 min E 7.8G7.8 62°F 63°F2 ft1018.4 hPa (+0.5)
41033 44 mi51 min ENE 12G16 62°F 60°F1019.4 hPa

Wind History for Fort Pulaski, GA
(wind in knots)    EDIT      (on/off)   Help
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
-12
pm
12
am
This day--
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hunter U. S. Army Airfield, GA2 mi2.1 hrsENE 510.00 miOvercast58°F54°F85%1018.3 hPa
Savannah-Hilton Head International Airport, GA10 mi66 minSE 53.00 miLight Rain Fog/Mist58°F57°F97%1019.1 hPa
Wright Army Airfield (Fort Stewart)/Midcoast Regional Airport, GA24 mi63 minESE 45.00 miLight Drizzle59°F57°F95%1018.9 hPa

Link to 5 minute data for KSVN

Wind History from SVN (wind in knots)
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
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
This dayS4SW3SW7SW7SW6W4W5W3W4NW4000W6NW6NW4000E10E9E5E5E4
1 day agoSE40000000000000SW6SW8SW8W10SW7SW7SW70S30
2 days agoS5S50S30000000000000S6S6SE6S6SE70SE5

Tide / Current Tables for Isle of Hope, Skidaway River, Georgia
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Isle of Hope
Click for Map
Tue -- 04:28 AM EST     -0.83 feet Low Tide
Tue -- 07:11 AM EST     Sunrise
Tue -- 10:46 AM EST     Moonrise
Tue -- 11:11 AM EST     9.57 feet High Tide
Tue -- 05:16 PM EST     -0.46 feet Low Tide
Tue -- 05:19 PM EST     Sunset
Tue -- 09:03 PM EST     Moonset
Tue -- 11:32 PM EST     7.95 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Isle of Hope, Skidaway River, Georgia, Tide feet
12
am
7.1
1
am
5.3
2
am
3.1
3
am
0.8
4
am
-0.6
5
am
-0.6
6
am
0.7
7
am
2.9
8
am
5.3
9
am
7.5
10
am
8.9
11
am
9.6
12
pm
9.2
1
pm
7.9
2
pm
5.8
3
pm
3.2
4
pm
0.9
5
pm
-0.4
6
pm
-0.1
7
pm
1.3
8
pm
3.3
9
pm
5.4
10
pm
7
11
pm
7.8


Tide / Current Tables for Savannah River Entrance, Georgia Current (2) (expired 1999-12-31)
   EDIT      (on/off)   Help   One Week of Data
Savannah River Entrance
Click for Map
Tue -- 02:13 AM EST     -2.82 knots Max Ebb
Tue -- 05:27 AM EST     0.00 knots Slack
Tue -- 07:11 AM EST     Sunrise
Tue -- 08:02 AM EST     2.23 knots Max Flood
Tue -- 10:46 AM EST     Moonrise
Tue -- 11:14 AM EST     -0.00 knots Slack
Tue -- 02:48 PM EST     -3.15 knots Max Ebb
Tue -- 05:18 PM EST     Sunset
Tue -- 06:19 PM EST     0.00 knots Slack
Tue -- 08:37 PM EST     1.75 knots Max Flood
Tue -- 09:02 PM EST     Moonset
Tue -- 11:39 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Savannah River Entrance, Georgia Current (2) (expired 1999-12-31), knots
12
am
-1.3
1
am
-2.3
2
am
-2.8
3
am
-2.6
4
am
-1.8
5
am
-0.6
6
am
0.7
7
am
1.8
8
am
2.2
9
am
1.9
10
am
1.2
11
am
0.2
12
pm
-0.9
1
pm
-2
2
pm
-2.9
3
pm
-3.1
4
pm
-2.7
5
pm
-1.7
6
pm
-0.4
7
pm
0.8
8
pm
1.6
9
pm
1.7
10
pm
1.2
11
pm
0.5


Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
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.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.