089 FXUS64 KJAN 051141 AFDJANArea Forecast Discussion National Weather Service Jackson MS 641 AM 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 246 AM CDT Sun Oct 5 2025
Today through Saturday...Weak low pressure aloft will position itself over the Lower Mississippi River Valley today. With it, increasing moisture across the region will yield some increasing, and much needed, rain chances across the forecast area this afternoon, mainly in the form of isolated to scattered showers and thunderstorms lifting up from the south. Much of this activity will dissipate during the evening hours, but some isolated showers will remain possible overnight into Monday morning.
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/
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.AVIATION... (12Z TAFS) Issued at 636 AM CDT Sun Oct 5 2025
VFR conditions prevail this morning, thereafter, our stretch of VFR comes to an end. Light rain showers and low stratus will begin to overspread the area this afternoon and persist through the overnight hours through the rest of the period. Very low stratus
NWS JAN Office Area Forecast Discussion