textproduct: Jackson

KEY MESSAGES

- Dangerous heat stress is expected across southern portions of the area today.

- Isolated to scattered severe storms capable of damaging wind gusts remain possible across southern portions of the area today.

DISCUSSION

Issued at 120 AM CDT Mon Aug 24 2026

Today and tonight...

A sinking surface boundary sliding southeast paired with the right entrance region an upper jet streak/speed max will contribute to an early morning round of elevated convection this morning across portions of the Delta and central MS. With this activity, temperatures/heat indices will be cooler today than we've seen recently with maximum values near 105 mostly near and south of the I-20 corridor. A "Limited" (1/4) risk for heat stress remains depicted in these areas.

Mostly to the south of this early activity, afternoon heating could allow for a rejuvenation of storm activity and these diurnally stronger storms warrant continuation of a "Slight" (2/5) risk for severe weather with the primary risk expected to be a risk for damaging wind gusts.

Tuesday into the weekend...

A preciously advertised risk for strong to severe storms on Tuesday has been withdrawn on this forecast cycle. Recent trends suggest early morning convective activity could result in a somewhat more thermodynamically stable environment during the afternoon and evening tomorrow.

Through the week, deep layer upper ridging will initially retrograde toward the Southwest as upper troughing generally moves further northeast and weaker away from the area. This results in upper heights remaining generally unchanged but with a somewhat reduced gradient. This could mean somewhat of a reduction in the near daily risk of mostly diurnally driven strong to severe storms, but embedded disturbances within the generally northwest flow aloft will mean some day-to-day variation could still bring the threat to some portions of the area each day. This will be monitored through the next week and targeted, mostly lower-end severe weather outlooks for some risk of damaging winds could be introduced when warranted. With a reduction in storm coverage likely and a general return to weak, southerly boundary layer flow as opposed to the more recent northerlies, heat and humidity will be on the rebound through the week. Heat headlines and advisories will likely be needed as the week progress. /SW/86/

AVIATION

(12Z TAFS) Issued at 623 AM CDT Mon Aug 24 2026

All TAF sites are VFR tonight and this will continue through the morning hours. Scattered to numerous showers/storms will develop this afternoon and this will bring the potential for MVFR/IFR conditions to affected sites. The winds will mainly be light and variable outside of any thunderstorm activity./15/

PRELIMINARY POINT TEMPS/POPS

Jackson 91 72 92 72 / 70 30 40 10 Meridian 93 72 93 72 / 50 10 20 20 Vicksburg 90 72 92 73 / 70 20 40 20 Hattiesburg 95 73 92 72 / 80 20 40 10 Natchez 95 74 93 73 / 60 10 50 0 Greenville 88 72 94 73 / 80 30 40 30 Greenwood 89 71 92 72 / 50 20 40 40

JAN WATCHES/WARNINGS/ADVISORIES

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