Savannah, GA to Altamaha Sound, GA including Grays Reef National Marine Sanctuary Marine Forecast
| Today...S Winds 10 To 15 Kt With Gusts To 20 Kt. Seas 2 To 3 Ft. Wave Detail: Se 3 Ft At 9 Seconds And S 2 Ft At 4 Seconds. |
| Tonight...S Winds 10 To 15 Kt. Seas 3 Ft. Wave Detail: S 3 Ft At 4 Seconds And E 3 Ft At 9 Seconds. |
| Fri...Sw Winds 5 To 10 Kt, Becoming S In The Afternoon. Seas 2 To 3 Ft. Wave Detail: Se 3 Ft At 9 Seconds And S 2 Ft At 5 Seconds. |
| Fri Night...S Winds 10 To 15 Kt. Seas 3 Ft. Wave Detail: Se 3 Ft At 9 Seconds. |
| Sat...Sw Winds 5 To 10 Kt, Becoming S 10 To 15 Kt In The Afternoon. Seas 2 To 3 Ft. Wave Detail: Se 3 Ft At 8 Seconds. |
| Sat Night...S Winds 10 To 15 Kt. Seas 3 Ft. Wave Detail: S 3 Ft At 4 Seconds And Se 3 Ft At 8 Seconds. |
| Sun...Sw Winds 10 To 15 Kt. Seas 2 To 3 Ft. |
| Sun Night...N Winds 20 To 25 Kt With Gusts To 30 Kt. Seas 4 To 5 Ft. |
| Mon...Ne Winds 20 To 25 Kt With Gusts To 30 Kt. Seas 5 To 7 Ft. |
| Mon Night...E Winds 15 To 20 Kt. Seas 4 To 5 Ft. |
| Area Forecast Discussion National Weather Service Charleston SC 655am EST Thu Nov 5 2026 .WHAT HAS CHANGED... Key message 1 and the aviation section have been updated. .KEY MESSAGES... - 1) Patchy fog possible across portions of the South Carolina Lowcountry this morning and again tonight. - 2) Unseasonably warm temperatures expected through late week, with scattered showers and a thunderstorm or two possible on Friday. KEY MESSAGE 1: Patchy fog possible across portions of the South Carolina Lowcountry this morning and again tonight. Surface dewpoints will remain in the mid to upper 60s through daybreak this morning, providing very narrow dewpoint depressions. Given light to calm winds and thin mid and high clouds, patchy fog and ground fog may develop across portions of the SC Lowcountry this morning. REFS indicate that the probability of visibility falling to around half mile will range between 40-60% around daybreak. The forecast will feature a mention of fog early this morning. Any fog that develops should dissipate during the first hour or two of daylight. A cold front will approach from the west tonight. Light return flow should continue across the forecast area overnight, maintaining surface dewpoints in the mid to upper 60s. Forecast soundings from the RRFS indicate nearly saturated conditions below a BL inversion. In addition, MOS and ensemble guidance indicate several hours of fog tonight, especially over the I-26 corridor. KEY MESSAGE 2: Unseasonably warm temperatures expected through late week, with scattered showers and a thunderstorm or two possible on Friday. Temperatures are forecast to warm into the mid 80s this afternoon. In fact, high temperatures could near record high values, see Climate section below. High resolution guidance indicates that a sea breeze will develop early this afternoon, drifting inland through early this evening. The sea breeze may trigger isolated showers, generally along and west of the I-95 corridor. Friday will start with a weak cold front just west of the area. The front will progress through the area during the day, pushing offshore in the evening. The better forcing passes by to the north, but guidance is consistent in showing a broken line of showers and a couple embedded thunderstorms moving through with the front. Significant rainfall is not expected, but a few spots could pick up 0.50-1". An axis of higher instability will develop closer to the coast, east of I95, but will remain fairly weak, so the threat for severe weather is low despite increasing wind fields. Dry weather will return for the weekend and early next week. Temperatures on Friday will remain above normal, generally peaking in the upper 70s to lower 80s. These values will remain shy of any records. Marine Today through Tonight: The forecast pattern will support southeast winds generally less than 10 kts. Seas should range between 2 to 4 ft. Friday through Tuesday: Marine conditions will remain below Small Craft Advisory criteria through the period. A weak cold front will push into the waters Friday evening, with high pressure returning thereafter. Winds will peak around 15 knots following frontal passage over the weekend, with seas 3-5 feet. Winds will settle around 10 kt or less and seas 2-4 feet for early next week. Climate Record High Temperatures: November 5: KCHS: 87/2003 KCXM: 81/1992 KSAV: 85/2003 November 6: KCXM: 81/2003 Record High Minimum Temperatures: November 5: KCHS: 69/2003 KCXM: 71/2024 KSAV: 70/2003 NOAA Charleston SC Office: Watches - Warnings - Advisories GA...None. SC...None. Marine None. |
Charleston SC Radar
Southeast Radar