Sunrise 6:16 AM   Sunset 7:33 PM Moonrise 8:31 PM   Moonset 6:31 AM

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GMZ532 Mississippi Sound- 333 Am Cdt Wed Apr 24 2024
Today - Northeast winds around 5 knots, becoming south this afternoon. Waves 1 foot or less, then around 2 feet this afternoon. Tonight - Southwest winds 5 to 10 knots. Waves 1 to 2 feet. Thursday - North winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Waves 1 foot or less, then 2 to 3 feet in the afternoon. Thursday night - South winds 10 to 15 knots. Waves 2 to 4 feet. Friday - Southeast winds 15 to 20 knots with gusts up to 25 knots. Waves 3 to 4 feet. Friday night - Southeast winds 20 to 25 knots with gusts up to 30 knots. Waves 4 to 5 feet. Saturday - Southeast winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Waves 3 to 4 feet. Saturday night - Southeast winds 15 to 20 knots. Waves 3 to 4 feet.Sunday - Southeast winds 15 to 20 knots. Waves 3 to 4 feet. Sunday night - Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Waves 3 to 4 feet.

GMZ500 333 Am Cdt Wed Apr 24 2024
Synopsis for pascagoula to atchafalaya river out 60 nm -
high pressure will remain across the local waters through much of the week allowing for favorable marine conditions across the region. Winds have transitioned to a more southerly to southeasterly direction as the high moves east of the region. Heading into Friday and more so the weekend, the pressure gradient will tighten again as multiple surface low will develop and move northeast across the plains this weekend. This will cuase winds to respond and a good chance that some headlines will be needed.

FXUS64 KJAN 241159 AAA AFDJAN

Area Forecast Discussion...UPDATED National Weather Service Jackson MS 659 AM CDT Wed Apr 24 2024

New AVIATION

DISCUSSION
Issued at 412 AM CDT Wed Apr 24 2024

Today and Tonight:

Upper-level ridge axis centered over the High Plains and low- amplitude shortwave trough crossing the Ohio River Valley today will keep our forecast area beneath northwesterly flow aloft. The shortwave will nudge a weak cold frontal boundary into the northern half of our area today. Another upper-70s to lower-80s day puts us right about normal for this time of year, and the slight uptick in moisture values will allow for isolated showers or storms to develop in the pooled moisture ahead of the front. With meager instability (500-1000 J/kg) for air mass thunderstorm potential in place along the moisture axis, long-lived convection is generally not expected, but there is a little flow aloft that should result in around 30 kts of deep-layer shear to help a few storms sustain during the afternoon hours. With expected isolated nature of convection, left the slight-chance to chance POPs areas generally as suggested by guidance (north of I-20). Continued moisture advection into tonight could yield some fog potential for early Thursday morning in the south. /NF/

Thursday-Tuesday:

A weak cold front will linger in northern portions of the CWA, before transitioning into a warm front and lifting northward on Thursday. As a result, isolated showers and thunderstorms will be possible for areas along and north of I-20 during the afternoon. On Friday, quiet and dry conditions are expected as an upper-level ridge begins to build over the southern CONUS. Increasing moisture and warm air advection is expected due to southerly flow and will continue into the weekend.

A few shortwaves are expected to move along the edge of the ridge, bringing isolated showers and thunderstorm potential back to northwest MS, southeast AR, and extreme northeast LA Friday night into Saturday. Outside of those areas, conditions will remain quiet ahead of the next frontal boundary moving in from Texas. A low pressure center near the northern Plains and MN will push an associated cold front towards the area, resulting in showers and thunderstorms starting west of I-55 Sunday afternoon. With bulk shear around 20-30 kts, lapse rates near 7 C/kg, and SBCAPE between 600-1500 J/kg, severe weather can't be ruled out; however, confidence is low. SPC has outlooked potential severe weather to the west of the CWA and we will continue to monitor for changes.
By Monday and into Tuesday, showers and thunderstorm potential will cover the rest of CWA At this time, no severe weather is outlooked for these days, but that could change as the timeframe gets closer. The aforementioned cold front is expected to push through our area by Tuesday evening. Weekend temperatures are expected to reach the middle to upper 80s and slightly decrease to the upper 70s to lower 80s post frontal passage. /SW/

AVIATION
(12Z TAFS)
Issued at 657 AM CDT Wed Apr 24 2024

VFR conditions are expected to prevail through the TAF period at all sites, however there is a slight chance for patchy BR or FG to develop near KHBG and KPIB after 09Z Thursday. Confidence in impacts to the TAF sites was too low to mention at this time.
Isolated SHRA or TSRA could develop across portions of the forecast area today, but impacts are generally not expected. /NF/

PRELIMINARY POINT TEMPS/POPS
Jackson 78 60 82 62 / 10 10 20 0 Meridian 80 57 83 60 / 10 10 20 0 Vicksburg 80 62 83 64 / 20 10 10 0 Hattiesburg 83 59 85 61 / 0 0 10 0 Natchez 80 61 84 64 / 10 0 0 0 Greenville 78 62 79 65 / 30 10 30 0 Greenwood 78 60 79 64 / 20 10 30 0

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

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