textproduct: Jackson

KEY MESSAGES

- Dangerous levels of heat stress will continue to be a concern early this week. - There is a marginal risk for a few severe storms late Monday over northern portions of the forecast area.

DISCUSSION

Issued at 300 PM CDT Sun Sep 20 2026

Above normal upper ridging continues to promote well above normal surface heat, and in spite of the lower dewpoints and greater mixing, we're still seeing limited to elevated heat danger in the near term ahead of an approaching cold front. However, relief from the heat is on the way. The cold front is expected to move through the area by Tuesday night/Wednesday, and this will bring temperatures and humidity levels that are much more typical of September.

Aside from the heat, we will be monitoring for the potential of a few strong/severe storms ahead of the cold front early this week. For Monday, per SPC, there is a marginal severe risk for a few pulse severe storms during peak heating over northern portions of the area. For Tuesday, there is currently no official SPC severe outlook in our forecast area, but it wouldn't be a surprise to see eastern portions of the area enter the picture for a possible marginal risk as we get closer in time. Looking ahead for the late week into next weekend, as mentioned, drier conditions can be expected with "less hot" temperatures. Overall, weather impacts should mostly be tied to early week heat and convective potential. /EC/

AVIATION

(18Z TAFS) Issued at 1218 PM CDT Sun Sep 20 2026

VFR prevails with scattered high clouds and light southerly winds. /SAS/

PRELIMINARY POINT TEMPS/POPS

Jackson 74 96 72 96 / 0 10 20 10 Meridian 72 97 71 96 / 10 20 30 20 Vicksburg 73 97 72 96 / 0 10 20 10 Hattiesburg 72 96 72 96 / 10 30 30 20 Natchez 73 97 72 97 / 0 20 10 10 Greenville 76 99 72 96 / 0 10 20 10 Greenwood 74 99 71 96 / 0 10 30 10

JAN WATCHES/WARNINGS/ADVISORIES

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