Marine Weather Net

Pensacola FL to Pascagoula MS out 20 NM Marine Forecast


REST OF TONIGHT

SW
WINDS
10 - 15
KNOTS

TUESDAY

SW
WINDS
8 - 13
KNOTS

TUESDAY NIGHT

S
WINDS
8 - 13
KNOTS

WEDNESDAY

SE
WINDS
3 - 8
KNOTS

The Marine Weather Forecast In Detail:
GMZ650 Forecast Issued: 958 PM CDT Mon Aug 19 2019

Rest Of Tonight...Southwest Winds 10 To 15 Knots Diminishing To 8 To 13 Knots. Seas 2 To 4 Feet. Dominant Wave Period 6 Seconds. Chance Of Showers And Slight Chance Of Thunderstorms.
Tuesday...Southwest Winds 8 To 13 Knots Becoming South. Seas Around 2 Feet. Dominant Wave Period 6 Seconds. Showers And Thunderstorms Likely.
Tuesday Night...South Winds 8 To 13 Knots Diminishing To 5 To 10 Knots. Seas 1 To 2 Feet. Dominant Wave Period 6 Seconds. Chance Of Showers And Thunderstorms.
Wednesday...Southeast Winds 3 To 8 Knots Becoming South 8 To 13 Knots. Seas 1 To 2 Feet. Dominant Wave Period 5 Seconds. Chance Of Showers And Thunderstorms.
Wednesday Night...South Winds 8 To 13 Knots. Seas 1 To 2 Feet. Dominant Wave Period 5 Seconds. Chance Of Showers And Thunderstorms.
Thursday...South Winds 3 To 8 Knots Increasing To 8 To 13 Knots. Seas Around 1 Foot. Dominant Wave Period 5 Seconds. Chance Of Showers And Thunderstorms.
Thursday Night...Southwest Winds 8 To 13 Knots. Seas 1 To 2 Feet. Dominant Wave Period 4 Seconds. Chance Of Showers And Thunderstorms.
Friday...Southwest Winds 8 To 13 Knots. Seas 1 To 2 Feet. Dominant Wave Period 5 Seconds. Chance Of Showers And Thunderstorms.
Friday Night...Southwest Winds 8 To 13 Knots. Seas 1 To 2 Feet. Dominant Wave Period 5 Seconds. Chance Of Showers And Thunderstorms.
Saturday...Southwest Winds 8 To 13 Knots. Seas Around 1 Foot. Showers And Thunderstorms Likely.
Saturday Night...Southwest Winds 8 To 13 Knots. Seas Around 1 Foot. Chance Of Showers And Thunderstorms.
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Synopsis For Pascagoula MS To Okaloosa Walton County Line FL Out 60 NM Including Major Area Bays And Sounds - GMZ600
958 PM CDT Mon Aug 19 2019

A light to moderate onshore flow will continue through the remainder of the week as high pressure continues to ridge into the Gulf from the western Atlantic. A chance of showers and thunderstorms are expected over coastal waters through Saturday night, becoming likely at times.
Area Forecast Discussion
...UPDATED National Weather Service Mobile AL
1158pm CDT Monday August 19 2019

DISCUSSION...See updated information for land areas below.

UPDATE...With the loss of afternoon instability, precipitation is beginning to wane. Kept only slight chance of tstms over the area through a little after midnight as mainly lingering showers and stratiform precipitation expected inland from the coast. Storms will again increase in coverage over the Gulf tonight so have kept the chance for showers and thunderstorms in the forecast closer to the coast during the overnight hours. /08

AVIATION... 00Z issuance...Scattered to numerous showers and thunderstorms will slowly dissipate during the early evening hours leaving behind a mix of MVFR (Marginal Visual Flight Rules) to VFR ceilings. Ceilings should lift to VFR later tonight as winds become light and variable. Some light patchy fog could be possible especially north of I-10 where more rain has fallen. By mid-morning, showers and storms should begin to redevelop along the seabreeze and push inland through the afternoon. BB/03

NEAR TERM /Now Through Tuesday/...The upper level trough will continue to reside over the southeastern states through the period, while an upper area of high pressure to our west over the southern plains stays in place. The light southerly surface wind flow over the southern portion of the forecast will expand inland on Tuesday as a ridge becomes better defined over the southeast states, keeping surface dewpoints in the low to mid 70s. High precipitable water values ranging from 1.8 to 2.1 inches area-wide will also remain.

Current convection is expected to dissipate across the inland areas west of I-65 this evening, but isolated to scattered showers and a few thunderstorms will persist along and to the east of I-65. These showers and thunderstorms will expand northward throughout the day Tuesday, becoming more numerous across the inland areas by late afternoon. High temperatures Tuesday will be near normal, ranging from 89 to 93 degrees inland areas, but cooler along the coast in the mid to upper 80s due to the earlier start of precipitation. /22

SHORT TERM /Tuesday night Through Thursday night/...A weak upper level shear axis is forecast to remain draped over the southeast US through the middle of the week. Embedded in the shear axis will be a zone of deep moisture where PWAT's (Precipitable Waters) range from 1.8" to as high as around 2.1 inches. With daytime differential heating resulting in a destabilizing environment Wednesday and Thursday, storm coverage increases, becoming scattered to perhaps numerous at times. A drop off in coverage is anticipated over the land zones each night; a typical summer-time convective pattern. The strongest storms will likely bring the most impacts by way of brief strong wind gusts, frequent lightning and locally heavy rainfall. In any slow moving storms, rainfall rates could be high enough to result in localized flooding in some lower lying and poor drainage areas.

Weak surface pressure ridge extending west into the Gulf and southeast US favors a light southerly wind component pattern through much of the period. This equates to little change in daily highs and night-time lows. Highs => upper 80s to lower 90s. Lows in the 70s. /10

Long Term - Friday Through Monday
Deep layer moisture lingers across the north central Gulf Coast region with PWATs (Precipitable Waters) around or perhaps a little higher than 2" each day. Subtle shortwave impulses continue in the flow aloft late this week, with another upper trough potentially setting up from the Appalachians to off the northern Gulf coast this weekend. These considerations continue to lean to an unsettled weather pattern into the medium range. Little daily change in temperatures is expected with highs each day ranging in the upper 80s to lower 90s, and typical lows in the 70s each night. /10

MARINE...A light to moderate wind flow, mainly from the southwest, will persist through the remainder of the week as a broad surface ridge of high pressure continues to stretch from the western Atlantic to the north central Gulf. Winds and seas will be higher near scattered to numerous showers and thunderstorms through much of the week. /22

NOAA Mobile AL Office: Watches - Warnings - Advisories
AL...High Rip Current Risk until 6am CDT Tuesday for ALZ265-266.

FL...High Rip Current Risk until 6am CDT Tuesday for FLZ202-204-206.

MS...None. GM...None.