Savannah, GA to Altamaha Sound, GA including Grays Reef National Marine Sanctuary Marine Forecast
| Rest Of Tonight...Variable Winds 5 Kt. Seas 2 Ft. Wave Detail: Ne 1 Foot At 4 Seconds And Se 1 Foot At 9 Seconds. |
| Sat...W Winds 5 To 10 Kt, Becoming Sw In The Afternoon. Seas 2 Ft. Wave Detail: Ne 1 Foot At 4 Seconds And Se 1 Foot At 9 Seconds. |
| Sat Night...Sw Winds 10 To 15 Kt, Becoming W 15 To 20 Kt After Midnight. Seas 2 To 3 Ft. Wave Detail: Sw 3 Ft At 4 Seconds And Ne 1 Foot At 5 Seconds. |
| Sun...W Winds 15 To 20 Kt, Diminishing To 10 To 15 Kt In The Afternoon. Seas 3 To 4 Ft, Subsiding To 2 To 3 Ft In The Afternoon. Wave Detail: Sw 3 Ft At 4 Seconds And Ne 1 Foot At 5 Seconds, Becoming Sw 3 Ft At 4 Seconds And E 1 Foot At 8 Seconds. |
| Sun Night...W Winds 10 Kt, Becoming Nw After Midnight. Seas 2 To 3 Ft. Wave Detail: W 2 Ft At 4 Seconds And E 1 Foot At 8 Seconds. |
| Mon...N Winds 10 To 15 Kt, Becoming Ne 5 To 10 Kt In The Afternoon. Seas 2 Ft. Wave Detail: N 2 Ft At 3 Seconds And Sw 2 Ft At 4 Seconds. |
| Mon Night...E Winds 5 To 10 Kt. Seas 2 Ft. |
| Tue...E Winds 5 To 10 Kt. Seas 2 Ft. |
| Tue Night...S Winds 5 To 10 Kt. Seas 2 Ft. |
| Wed...Sw Winds 5 To 10 Kt. Seas 2 Ft. |
| Wed Night...S Winds 5 To 10 Kt. Seas 2 Ft. |
| Area Forecast Discussion National Weather Service Charleston SC 1258am EST Sat Nov 15 2025 Synopsis High pressure will remain the primary feature through the weekend. A dry cold front will move through the area Sunday night, followed by more high pressure for early next week. Near Term - Through Tonight Through Sunrise: There is the potential for fog across our SE GA counties. We cannot rule out any headlines. Today And Tonight The mid-levels will consist of NW flow. At the surface, High pressure will be centered to our south. A cold front will approach from the distant north overnight. However, it's not expected to reach our area during this time frame. The High will dominate our weather, bringing dry conditions with some late afternoon and evening clouds. Temperatures will be above normal. Highs should be in the middle to upper 70s, except cooler at the beaches. Low will be in the lower to middle 50s. Short Term - Sunday Through Tuesday Sunday: A upper-level trough will pivot eastward into Northeast and push an associated dry cold front across the region on Sunday night. Ahead of this feature, southerly low-level flow will transport mild thicknesses across the region. With warm 850-700MB temperatures and partly sunny conditions, temperatures should be able to reach into the mid to upper 70s at the surface. It's possible to see some spots across southeast Georgia reach into the low 80s. Expect breezy conditions to persist through Sunday night as the region will be wedged between the upper-level trough over Northeast and surface high pressure across northern FL. Again, given the dry conditions, a rain- free forecast was maintained. Expect lows to reach into the low to mid 40s across the interior counties and upper 40s to low 50s along the coastline as modest cooling will be seen from the frontal passage overnight. Monday and Tuesday: Post-FROPA, surface high pressure will build into the region and allow quiet conditions to persist. Expect northwesterly winds to weaken and veer to the east- northeast by Monday evening. The atmosphere remains quite dry with PWATs (Precipitable Waters) near or less than 0.5 inches. Expect mostly sunny skies and temperatures in the upper 60s to low 70s across southeast South Carolina and mid to upper 70s across southeast Georgia. Long Term - Tuesday Night Through Friday A weak shortwave trough over the Great Plains slowly weaken as it moves across the Appalachian Mtns., before re-organizing off of the Mid-Atlantic coastline on Wednesday. Due to the lack of moisture and forcing present, the forecast remains rain-free through mid-week. Some model guidance indicates that front will stall out nearby. The end of the week could be the next chance for precipitation as a surface low pressure develops across the central CONUS and an associated cold front advances towards the region. This pattern will result in a progressive warm-up with temperatures returning to near normal by mid-week. Marine Through Sunrise: No marine concerns. Today And Tonight High pressure will prevail to our south. There will be no marine concerns during the day. During the evening and overnight, winds and seas will trend higher, so we have a Small Craft Advisory in effect for the Charleston waters and the GA waters beyond 20 nm. Sunday through Thursday: As surface high pressure shifts across northern Florida and associated cold front approaches the region, breezy southwesterly winds will persist across the marine zones with speeds ranging from 15 to 20 kt with gusts up to 25 kt (mainly across the nearshore Charleston and outer Georgia waters) on Sunday morning. Therefore, Small Craft Advisories have been issued for nearshore Charleston and outer Georgia waters until Sunday afternoon. Post-FROPA, winds should become light at 5 to 10 kt by Monday early afternoon through the mid-week. Seas will range from 3 to 6 ft on Sunday, and then tapering back to 1 to 3 ft through the rest of the period. NOAA Charleston SC Office: Watches - Warnings - Advisories GA...None. SC...None. Marine Small Craft Advisory from 7pm this evening to 5pm EST Sunday for AMZ350. Small Craft Advisory from 10pm this evening to 3pm EST Sunday for AMZ374. |
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