South Mobile Bay Marine Forecast
| Tonight...South Winds Around 5 Knots. Waves 1 Foot Or Less. Smooth. Widespread Dense Fog This Evening. Patchy Fog After Midnight, Then Widespread Dense Fog Late. |
| Thursday...Southeast Winds 5 To 10 Knots. Waves 1 Foot Or Less. Light Chop. Widespread Dense Fog In The Morning, Then Areas Of Dense Fog In The Afternoon. |
| Thursday Night...Southeast Winds 10 To 15 Knots With Gusts Up To 20 Knots. Waves 1 Foot Or Less. A Moderate Chop. A Slight Chance Of Showers. |
| Friday...Southeast Winds 10 To 15 Knots With Gusts Up To 20 Knots. Waves 1 Foot Or Less. A Moderate Chop. A Slight Chance Of Showers In The Morning, Then A Chance Of Showers In The Afternoon. |
| Friday Night...South Winds 10 To 15 Knots With Gusts Up To 20 Knots. Waves Around 2 Feet. A Moderate Chop. Showers Likely. A Slight Chance Of Thunderstorms In The Evening, Then A Chance Of Thunderstorms After Midnight. |
| Saturday...Southwest Winds 10 To 15 Knots With Gusts Up To 20 Knots, Becoming West In The Afternoon. Waves Around 2 Feet In The Morning, Then 1 Foot Or Less. A Moderate Chop. Showers With A Chance Of Thunderstorms In The Morning, Then Showers Likely With A Slight Chance Of Thunderstorms In The Afternoon. |
| Saturday Night...North Winds 15 To 20 Knots, Increasing To 20 To 25 Knots After Midnight. Waves Around 2 Feet. Rough. A Chance Of Showers, Mainly In The Evening. |
| Sunday...North Winds 20 To 25 Knots, Diminishing To 15 To 20 Knots In The Afternoon. Waves Around 2 Feet. Rough. |
| Sunday Night...North Winds 15 To 20 Knots. Waves Around 2 Feet. Choppy. |
| Monday...Northeast Winds 10 To 15 Knots, Becoming North 5 To 10 Knots In The Afternoon. Waves Around 2 Feet In The Morning, Then 1 Foot Or Less. A Moderate Chop. |
| Monday Night...Northeast Winds Around 5 Knots. Waves 1 Foot Or Less. Smooth. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Mobile AL 1203pm CST Wednesday Jan 7 2026 Issued at 1200pm CST Wednesday Jan 7 2026 Generally dry weather conditions prevail across the forecast area through Thursday, with perhaps an isolated shower or two over interior portions of south-central Alabama. High and low temperatures remain well above normal in the middle 70's with overnight lows in the upper 50's to lower 60's. The main forecast challenge remains dense fog. Dense marine fog persists near the immediate coast causing visibility problems across Dauphin Island through Fort Morgan. This should erode somewhat this afternoon before dense fog settles back in this evening into the overnight. A large portion of the area should sock back in to dense fog overnight tonight, particularly along and south/east of the I-65 corridor. Areas nearer the coast may see the densest fog as sea fog advects onshore. Fog should begin to lift Thursday morning for interior areas, perhaps lingering nearer the coast into late morning or early afternoon depending on how long sea fog wants to hang around. As we head into Friday attention shifts towards the approaching storm system from the west. Fog concerns may still linger, although become more limited to sea fog and the immediate coast as low level winds increase quite a bit Thursday night into Friday. The storm system approaching from the west will likely increase rain and thunderstorm chances, particularly Friday afternoon into Friday night. There remains uncertainty on the severe weather potential during this period. While ample shear and instability will be in place for organized convection including miniature supercells and storm clusters, there remains questions on the quality of forcing that will be present in our forecast area. This may end up being one of those cases where the bulk of severe thunderstorms ends up happening further northwest of the forecast area where better forcing for ascent exists as a shortwave rounding the base of the trough remains displaced from us and upper ridging tries to hold strong here. Despite this, given the environment any storm that can develop will have the potential of becoming strong to severe, with best chances likely existing across our interior southeast Mississippi into interior southwest Alabama counties. Storms will have the potential to produce damaging wind gusts, large hail, and a tornado or two. As we head into Friday night and Saturday we begin to enter the right entrance region of the upper jet as the trough continues to translate east across the ArkLaMiss region. A surface cold front will move slowly across our forecast area, bringing with it scattered to locally numerous showers and thunderstorms. We will continue to have adequate shear and instability in place Friday night into Saturday, with a continuation of at least an isolated severe threat with the strongest storms. Damaging winds, large hail, and a tornado or two remain possible. It is possible storms train over the same areas due to the slow-moving nature of the cold front and may pose a localized flash flooding threat, particularly for areas west of the I-65 corridor. The tornado threat will likely diminish Saturday with any storms as low level wind profiles veer out and hodographs become increasingly straight but the damaging wind and hail threat should continue until frontal passage. In the wake of the front, things dry out quickly with temperatures dropping back to seasonable norms for this time of year Monday into the middle of next week with highs back in the lower to middle 50's and overnight lows in the upper 20's to middle 30's for most locations. We should gradually see a warming trend as we get into the middle of next week. A Low risk of rip currents continues through Thursday night, becoming a Moderate risk Friday and a High risk by Saturday. The rip current risk will start to decrease in the wake of the cold front to a Moderate risk on Sunday. MM/25 Marine Issued at 1200pm CST Wednesday Jan 7 2026 A light to occasionally moderate southwesterly flow becomes southeasterly on Thursday and continues into Friday. Dense marine fog potential continues through the rest of the week. A dense fog advisory remains in effect today through Thursday afternoon for all bays, sounds, and adjacent gulf waters out to 20 nautical miles. A strong offshore flow develops Saturday night in the wake of a cold front, then diminishes on Monday. A Small Craft Advisory will likely be needed for that period for most of the marine waters. MM/25 NOAA Mobile AL Office: Watches - Warnings - Advisories AL...Dense Fog Advisory from midnight tonight to 9am CST Thursday for ALZ056>060-261>266. FL...Dense Fog Advisory from midnight tonight to 9am CST Thursday for FLZ201>206. MS...Dense Fog Advisory from midnight tonight to 9am CST Thursday for MSZ079. GM...Dense Fog Advisory until noon CST today for GMZ630-633>636-655. Dense Fog Advisory from 6pm this evening to noon CST Thursday for GMZ630-633>636-655. Dense Fog Advisory until noon CST Thursday for GMZ631-632-650. |
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