Marine Weather Net

Mississippi Sound GMZ532 Marine Forecast


TONIGHT

SW
WINDS
5 - 10
KNOTS

SUNDAY

NW
WINDS
5 - 10
KNOTS

SUNDAY NIGHT

SW
WINDS
5 - 10
KNOTS

MONDAY

SW
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
GMZ532 Forecast Issued: 340 PM CDT Sat Jul 13 2024

Tonight...Southwest Winds 5 To 10 Knots, Becoming West After Midnight. Waves Around 2 Feet. A Chance Of Showers And Thunderstorms Early This Evening. A Slight Chance Of Showers And Thunderstorms Late This Evening And Overnight.
Sunday...Northwest Winds 5 To 10 Knots, Becoming Southwest In The Afternoon. Waves 1 Foot Or Less. A Chance Of Showers And Thunderstorms.
Sunday Night...Southwest Winds 5 To 10 Knots. Waves 1 Foot Or Less. A Chance Of Showers And Thunderstorms.
Monday...Southwest Winds 5 To 10 Knots. Waves 1 Foot Or Less. A Chance Of Showers And Thunderstorms.
Monday Night...Southwest Winds 5 To 10 Knots. Waves 1 Foot Or Less. A Chance Of Showers With A Slight Chance Of Thunderstorms After Midnight.
Tuesday...West Winds Around 5 Knots, Becoming South In The Afternoon. Waves 1 Foot Or Less. A Chance Of Showers And Thunderstorms.
Tuesday Night...Southwest Winds 5 To 10 Knots. Waves Around 2 Feet In The Evening, Then 1 Foot Or Less. A Chance Of Showers And Thunderstorms After Midnight.
Wednesday...West Winds Around 5 Knots, Becoming South In The Afternoon. Waves 1 Foot Or Less, Then Around 2 Feet In The Afternoon. A Chance Of Showers And Thunderstorms.
Wednesday Night...Southwest Winds 5 To 10 Knots. Waves Around 2 Feet In The Evening, Then 1 Foot Or Less. A Slight Chance Of Showers And Thunderstorms In The Evening, Then A Chance Of Showers And Thunderstorms After Midnight.
Thursday...West Winds 5 To 10 Knots, Becoming Southwest In The Afternoon. Waves 1 Foot Or Less. Showers And Thunderstorms Likely.
Thursday Night...Southwest Winds 5 To 10 Knots. Waves 1 Foot Or Less. A Chance Of Thunderstorms. A Chance Of Showers In The Evening, Then Showers Likely After Midnight. Winds And Waves Higher In And Near Thunderstorms.
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Area Forecast Discussion
National Weather Service New Orleans LA
336pm CDT Sat July 13 2024

...New SHORT TERM, LONG TER
Marine
.SHORT TERM... (This evening through Sunday night) Issued at 330pm CDT Sat July 13 2024

Upper ridges centered from Bermuda to the eastern Gulf of Mexico to our east and over the Four Corners area to the west. In between, a trough axis extended from Lake Ontario to western Kentucky to Oklahoma. Precipitable water values were generally right around 2 inches across the area as noted by upper air soundings and satellite derived data.

Most of the morning across the area saw little in the way of cloud cover, but as temperatures warmed into the lower and middle 90s, isolated to scattered convection developed along lake and sea breeze boundaries. Many areas reached Heat Advisory criteria (108F heat index), at least briefly, with the isolated storms producing only localized relief. Expect most, or all, of the activity to dissipate with the loss of surface heating in a few hours.

The western ridge may expand eastward slightly on Sunday, pushing the trough axis a bit closer to the area. Don't really see much change in forecast moisture levels, nor in expected convective temperatures (generally lower 90s), so it wouldn't be surprising at all to see a repeat scenario of convective initiation on land/sea breeze boundaries during the afternoon. Maybe a little better areal coverage with the trough being a bit closer, but that's it. As has been the case for multiple days, one or two of the storms could produce localized very heavy rainfall rates, but that should be the exception to the rule.

Will keep the Heat Advisory in place for Sunday, but quite a few areas may see relief from the heat with thunderstorm outflows during the late afternoon hours.

Long Term
(Monday through Friday night) Issued at 330pm CDT Sat July 13 2024

Upper weakness remains near or over the local area for much of the week. Not a lot to differentiate one day from another regarding temperatures or rain chances until perhaps the end of the week, when a northern stream shortwave attempts to push the trough axis across the area. This might provide somewhat better areal coverage of storms and slightly "cooler" temperatures. Many areas are likely to get at least close to Heat Advisory criteria each day, but do not expect to reach
Excessive Heat Warning...iteria (113F heat index). Did not depart from NBM deterministic values to any great degree.

Marine
Issued at 330pm CDT Sat July 13 2024

No significant departures from previous marine forecast with potential for thunderstorms the main concern for marine interests. Scattered storms, mainly late night/early morning each day, with the potential to produce locally gusty winds and hazardous seas. Low level wind fields will be light enough where we can't eliminate the possibility of waterspouts during the morning hours.

NOAA New Orleans LA Office: Watches - Warnings - Advisories
LA...
Heat Advisory until 7pm CDT this evening for LAZ034>037-039- 046>048-056>060-064-065-071-076>090.
Heat Advisory from 11am to 7pm CDT Sunday for LAZ034>037-039- 046>048-056>060-064-065-071-076>090.

GM...None. MS...
Heat Advisory until 7pm CDT this evening for MSZ068>071-077- 083>088.

Heat Advisory from 11am to 7pm CDT Sunday for MSZ068>071-077- 083>088.

GM...None.