textproduct: Jackson

KEY MESSAGES

- Dangerous heat stress may return across the forecast area early to late next week.

- Rain chances are expected along/south of I-20 as multiple disturbances affect the area through the period.

DISCUSSION

Issued at 1229 PM CDT Sat Aug 29 2026

Saturday Night and Sunday...An upper-lvl high over the Southwest & Texas continues to expand towards the Southeast. As the high progresses, heat indices are expected start increasing to 100 degrees by Sunday. A cut-off low pressure near Gulf states will track westwards, shifting rain chances through the Interstate 59 corridor and HWY 84 Sunday.

Monday through Friday Night...The aforementioned high will settle over the Southeast CONUS around Tuesday, lingering through the rest of the week. Dangerous heat concerns are expected to return as highs range in the mid/upper 90s and heat indices reach 105-110F. HWO graphics may be needed over the next day or two. As the high settles, additional cut-off low disturbances will traverse around the ridge, bring deep moisture and storm chances (25-50%) starting along the HWY 84 corridor. Mid-week, rain chances will expand to the I-20 corridor and eastern MS as the pattern lingerns into the end of the week. /SW/

AVIATION

(18Z TAFS) Issued at 1229 PM CDT Sat Aug 29 2026

VFR flight categories will prevail at area TAF sites over the next 24 hours. Winds this afternoon will be from the east northeast between 5-8 knots, while gradually becoming more southeasterly this evening while decreasing to around 3 knots. /19/

PRELIMINARY POINT TEMPS/POPS

Jackson 71 94 72 94 / 0 30 0 20 Meridian 72 93 72 95 / 0 30 0 20 Vicksburg 70 94 72 93 / 0 0 0 10 Hattiesburg 72 92 72 94 / 10 40 10 40 Natchez 71 95 72 93 / 0 20 10 20 Greenville 70 97 73 96 / 0 0 0 10 Greenwood 71 96 73 96 / 0 0 0 10

JAN WATCHES/WARNINGS/ADVISORIES

MS...None. LA...None. AR...None.