Sunrise 6:23 AM   Sunset 7:29 PM Moonrise 2:59 PM   Moonset 3:54 AM

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GMZ532 Mississippi Sound- 1026 Am Cdt Thu Apr 18 2024
Today - Southeast winds 5 to 10 knots, becoming south 10 to 15 knots late. Waves 2 to 3 feet. Patchy fog early this morning. Tonight - South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Waves 2 to 3 feet, subsiding to 1 to 2 feet after midnight. Widespread dense fog after midnight. Friday - South winds around 5 knots, increasing to 10 to 15 knots in the afternoon. Waves 1 foot or less, then 2 to 3 feet in the afternoon. Patchy dense fog in the morning. Friday night - South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Waves 1 to 2 feet. Saturday - Southwest winds around 5 knots, becoming south 10 to 15 knots in the afternoon. Waves 1 foot or less, then 2 to 3 feet in the afternoon. Saturday night - South winds 10 to 15 knots, becoming southeast around 5 knots after midnight. Waves 1 to 2 feet in the evening, then 1 foot or less. A slight chance of showers after midnight. Sunday - East winds 5 to 10 knots, becoming north in the afternoon. Waves 1 foot or less, then around 2 feet in the afternoon. A chance of Thunderstorms. Showers.Sunday night - North winds 10 to 15 knots. Waves 2 to 3 feet. Monday - North winds 10 to 15 knots, becoming northeast 5 to 10 knots in the afternoon. Waves 2 to 3 feet. Monday night - Northeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet after midnight.
winds and waves higher in and near Thunderstorms.

GMZ500 1026 Am Cdt Thu Apr 18 2024
Synopsis for pascagoula to atchafalaya river out 60 nm -
a persistent south to southeast wind of around 10 knots will remain in place through Saturday. A weak cold front will slip through the waters Sunday morning, and winds will shift to northerly which will remain into Monday as high pressure moves in and exits east.

FXUS64 KJAN 181922 AFDJAN

Area Forecast Discussion National Weather Service Jackson MS 222 PM CDT Thu Apr 18 2024

New DISCUSSION

DISCUSSION
Issued at 220 PM CDT Thu Apr 18 2024

Tonight and Tomorrow: The severe weather and flooding threat in the northern portions of the CWA will be the main focus for the short term forecast as a slight and marginal risk areas for severe will continue through midnight tonight. Damaging wind gusts up to 60mph, hail up to golf ball sized, severe storms possible will be the main threats for this event as well as a tornado not being able to be be ruled out. Flash flooding will also be possible near the ArkLaMs borders due to the repetitive nature of the forecasted storms heavy rainfall over the same area. While we still expect this to be scattered thunderstorm event, if storms do form there is the possibility for supercell development which could produce hail up to golf ball sized, damaging wind gusts and a tornado cant be ruled out. The timing of the main brunt of this weather will last until around midnight tonight. As storms wrap up expect isolated shower and storm chances to remain through the overnight but will remain mostly above I-20 with best chances above Hwy-82. Going into the morning dense patchy fog will be possible again in the southeastern portions of the CWA as excess moisture and light winds will make development easy and more likely due to persistence. Going into the early morning a cold front will be in the process of dropping into the CWA allowing rain chances in the north to persist through the afternoon as the boundary moves off to our east. Rain chances will continue in the northeastern portions of the CWA through the forecast period./KP/

Saturday through Thursday: The pattern change will continue through the weekend and into early next week as an upper-level ridge over the Gulf of Mexico refocuses over the southwestern U.S.
and upper-level troughing becomes more prevalent over the eastern U.S. Building surface high pressure will make its way southeast out of the High Plains and toward the Mid- South behind a cold front Sunday into Monday. It should bring drier air and initially cooler weather to the Gulf Coast region. Flow aloft over our area will be mostly zonal in the early to midweek time frame, and it's possible a shortwave moving north of our area and its attendant cold front could trigger a few showers or thunderstorms as the system glances by our region. For now, POPs are an uncertain 20 percent for next Wednesday. Temps will warm to above normal again as the high pressure shifts eastward. /NF/

AVIATION
(18Z TAFS)
Issued at 1247 PM CDT Thu Apr 18 2024

VFR/MVFR conditions will prevail for a majority of the forecast period. However periods of SHRA and VCTS will impact TAF sites this afternoon through this evening causing categories to drop down to MVFR IFR with possible LIFR for an hour or two. Beginning around 10Z expect another round of patchy dense fog to impact southeastern TAF sites through 15Z as high moisture and low winds will make it east for fog development./KP/

PRELIMINARY POINT TEMPS/POPS
Jackson 66 82 64 73 / 20 20 10 50 Meridian 65 87 62 75 / 30 20 20 40 Vicksburg 66 80 61 70 / 20 20 10 50 Hattiesburg 67 87 66 83 / 10 10 10 40 Natchez 66 85 64 76 / 10 10 10 30 Greenville 65 72 56 63 / 40 20 30 70 Greenwood 66 74 57 65 / 50 30 20 60

JAN WATCHES/WARNINGS/ADVISORIES
MS...None.
LA...None.
AR...None.

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