textproduct: Jackson

KEY MESSAGES

- Dangerous heat stress will persist this weekend.

- There is a marginal risk (level 1 of 5) for severe storms Sunday.

DISCUSSION

Issued at 350 AM CDT Sat Sep 5 2026

Today through tonight: Areas of fog are focused over the lower Pine Belt region early this morning, and this will persist to around sunrise. Otherwise, expect another day of dangerous heat and have maintained the heat advisory that is in effect for western/northern portions of the area. The cyclonic flow responsible for the enhanced storm coverage Friday will be relaxing a bit today, but there will still be enough to support isolated to scattered diurnal storms and slightly less dangerous heat mainly in the Pine Belt region.

Sunday into Sunday night: Quick amplification of the upper level trough over the eastern CONUS will sent a front toward our forecast area. There will be some added compressional heating ahead of the boundary with H850 temperatures in the low 20s deg C, and this will result in continued elevated dangerous heat levels, and most likely another heat advisory. In addition, a marginal severe risk has emerged for Sunday afternoon/evening as scattered storms should initiate ahead of the front in an airmass characterized by steep low to mid level lapse rates. This will support severe wind gusts in the more intense storms. If storm development becomes more imminent, we could certainly see the risk level increase to slight (2 of 5) as there is recent precedence for storms to overachieve with the hotter days and anomalously hot H850 temps.

Monday through Friday: A stubborn subtropical ridge will remain planted over the Gulf Coast states, so don't expect signs for early fall weather to show up any time soon. Instead, we can expected additional limited to elevated dangerous heat threats and reduced rainfall coverage mostly limited to southern portions of the area. /EC/

AVIATION

(12Z TAFS) Issued at 625 AM CDT Sat Sep 5 2026

VFR prevails. Low stratus and patchy dense fog is evident this morning south of I-20. This should clear up around 14-15z. /SAS/

PRELIMINARY POINT TEMPS/POPS

Jackson 94 73 97 74 / 40 0 10 10 Meridian 95 73 100 72 / 30 0 20 10 Vicksburg 93 72 96 73 / 30 0 10 10 Hattiesburg 93 73 96 73 / 40 10 40 10 Natchez 92 72 95 73 / 50 10 10 10 Greenville 99 75 101 75 / 20 10 10 10 Greenwood 99 74 100 73 / 10 10 30 10

JAN WATCHES/WARNINGS/ADVISORIES

MS...Heat Advisory from 11 AM this morning to 7 PM CDT this evening for MSZ018-019-025>054-059>062.

LA...Heat Advisory from 11 AM this morning to 7 PM CDT this evening for LAZ007>009-015-016-023>026.

AR...Heat Advisory from 11 AM this morning to 7 PM CDT this evening for ARZ074-075.