Marine Weather Net

Pensacola FL to Pascagoula MS out 20 NM Marine Forecast


REST OF TONIGHT

S
WINDS
8 - 13
KNOTS

MONDAY

SW
WINDS
8 - 13
KNOTS

MONDAY NIGHT

SW
WINDS
13 - 18
KNOTS

TUESDAY

N
WINDS
20 - 25
KNOTS

The Marine Weather Forecast In Detail:
GMZ650 Forecast Issued: 947 PM CDT Sun Sep 27 2020

SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING
Rest Of Tonight...South Winds 8 To 13 Knots. Seas 1 To 2 Feet. Dominant Wave Period 4 Seconds. Slight Chance Of Showers And Thunderstorms After Midnight.
Monday...Southwest Winds 8 To 13 Knots. Seas 1 To 2 Feet. Dominant Wave Period 4 Seconds. Chance Of Showers And Slight Chance Of Thunderstorms.
Monday Night...Southwest Winds 13 To 18 Knots Becoming North 20 To 25 Knots. Seas 1 To 3 Feet. Dominant Wave Period 5 Seconds. Chance Of Showers And Slight Chance Of Thunderstorms.
Tuesday...North Winds 20 To 25 Knots Diminishing To 15 To 20 Knots. Gusts Up To 30 Knots. Seas 2 To 4 Feet. Dominant Wave Period 4 Seconds. Chance Of Showers In The Morning. Slight Chance Of Thunderstorms. Slight Chance Of Showers In The Afternoon.
Tuesday Night...North Winds 18 To 23 Knots Diminishing To 15 To 20 Knots. Gusts Up To 25 Knots. Seas 2 To 4 Feet. Dominant Wave Period 4 Seconds.
Wednesday...North Winds 15 To 20 Knots With Gusts To Around 25 Knots Becoming Northwest 8 To 13 Knots. Seas 1 To 3 Feet. Dominant Wave Period 4 Seconds.
Wednesday Night...North Winds 8 To 13 Knots. Seas Around 1 Foot. Dominant Wave Period 4 Seconds.
Thursday...Northwest Winds 8 To 13 Knots. Seas Around 1 Foot. Dominant Wave Period 3 Seconds.
Thursday Night...Northwest Winds 15 To 20 Knots. Seas 1 To 2 Feet. Dominant Wave Period 4 Seconds.
Friday...North Winds 18 To 23 Knots. Seas 1 To 3 Feet. Dominant Wave Period 4 Seconds.
Friday Night...North Winds 18 To 23 Knots. Seas 1 To 4 Feet. Dominant Wave Period 4 Seconds.
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Synopsis For Pascagoula MS To Okaloosa Walton County Line FL Out 60 NM Including Major Area Bays And Sounds - GMZ600
947 PM CDT Sun Sep 27 2020

Light to moderate onshore flow will persist into Monday ahead of an approaching cold front. Winds shift to more northerly and increase Monday night as the front passes. Moderate northerly winds continue into Wednesday before decreasing and shifting to northwesterly by Thursday. Seas build to 3-5 feet in the wake of the cold front Monday night into Tuesday.
Area Forecast Discussion
National Weather Service Mobile AL
1203am CDT Monday September 28 2020

NEAR TERM /Now Through Tuesday/...An upper level shortwave lifts quickly northeast from the Tennessee Valley towards the Northeast Atlantic coast tonight, with a longwave trough on its heels deepening over the central CONUS. The latter feature will amplify through the day Monday over the Mississippi Valley and ARKLATEX (Arkansas/Louisiana/Texas) regions. At the surface, high pressure is shifting eastward and a cold front is moving over the Mississippi Valley. This front is expected to push through the lower Mississippi River Valley during the day Monday, approaching southeast Mississippi and southwest Alabama by early Monday evening.

Ahead of the approaching front, isolated to scattered showers and storms develop across the area Monday afternoon in an environment characterized by moderate instability (~1500 J/kg MLCAPE) but little deep-layer shear (around 20 knots). While this environment may not support much of a severe thunderstorm threat, vertical wind profiles improve within the frontal zone, which in combination with the available instability could result in a few strong storms right along the front itself as it pushes through late Monday. These would be capable of producing damaging wind gusts and perhaps some small hail. The Storm Prediction Center has highlighted much of the area in a Marginal Risk to reflect this potential. Once the front passes, any strong thunderstorm threat quickly diminishes as gusty northwest winds usher in a much drier and cooler airmass.

Highs on Monday will be warm, reaching the mid to upper 80s areawide. Monday night is a transition period as temperatures range from 50s behind the front to 60s ahead of it. Tuesday will feel more Fall-like as highs remain in the upper 60s to low 70s and dewpoints fall into the 50s. Expect some really pleasant days ahead in the short and extended term! /49

NOAA Mobile AL Office: Watches - Warnings - Advisories
AL...None. FL...None. MS...None. GM...Small Craft Advisory from 10pm this evening to 10pm CDT Tuesday for GMZ650-655-670-675.

Small Craft Advisory from 10pm this evening to 4pm CDT Tuesday for GMZ631-632.