981 FXUS64 KJAN 052355 AFDJANArea Forecast Discussion National Weather Service Jackson MS 655 PM CDT Sun Oct 5 2025
...New AVIATION...
.KEY MESSAGES...
- Rain chances exist through mid-week, but warm and mostly dry weather continues to be the general theme as we go through this week.
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.DISCUSSION... Issued at 208 PM CDT Sun Oct 5 2025
Today through Saturday: Weak low pressure is positioning itself over the Lower Mississippi River Valley this afternoon. With it, increasing moisture across the region will yield some increasing rain chances across mainly southeast portions of the forecast area as we go through the next several hours, but a good bit of moistening is required and this is delaying the onset of any measurable rainfall.
Although this mid/upper level low pressure system erodes heading into the new work week, moisture associated with it will linger across the forecast area through mid-week. This will continue to result in rain chances remaining in the forecast, especially during the heat of the afternoon, through at least Wednesday. This is when a fast moving cold front is progged to sink south into and through the region.
In this front`s wake Thursday through Saturday, high pressure at the surface will quickly build southeast into the Lower Mississippi River Valley, with high pressure aloft building southwest along the north central gulf coast. Not much of an airmass change is currently expected to accompany this frontal passage, as only some slightly drier air will advect into the region. Still, somewhat less humid conditions will exist as temperatures hover at to just above the norm for this time of year late in the week. /19/EC/
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.AVIATION... (00Z TAFS) Issued at 643 PM CDT Sun Oct 5 2025
VFR conditions will gradually deteriorate to MVFR this evening/overnight as showers and lowering cloud decks spread across the area. TAF sites will experience IFR, with possible LIFR conditions developing between 10Z and 13Z due to low stratus and patchy fog. Easterly winds with occasional gusts up to 20 kts will persist into this evening. MVFR ceilings will prevail across the entire forecast area through much of Monday./KP/
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.PRELIMINARY POINT TEMPS/POPS... Jackson 70 84 70 89 / 40 40 30 30 Meridian 69 83 68 89 / 50 50 20 20 Vicksburg 71 86 70 89 / 40 50 30 30 Hattiesburg 71 86 70 89 / 60 40 10 20 Natchez 70 88 70 89 / 40 40 30 20 Greenville 70 84 69 86 / 40 60 50 50 Greenwood 70 83 70 87 / 50 50 40 50
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.JAN WATCHES/WARNINGS/ADVISORIES... MS...None. LA...None. AR...None. &&
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19/EC/KP
NWS JAN Office Area Forecast Discussion