textproduct: Jackson

KEY MESSAGES

- Dangerous levels (limited to elevated) of heat will return Thursday and persist into the weekend.

MESOSCALE UPDATE

Issued at 1041 PM CDT Wed Jul 8 2026

A few showers and thunderstorms will linger into the overnight tonight as the atmosphere is still humid and unstable, however any additional activity would likely need lift assistance from outflow boundaries left from evening convection. Showers and storms remain possible again tomorrow afternoon, mainly along and east of the Interstate 55 corridor. An isolated shower or storm could occur elsewhere. /NF/

DISCUSSION

Issued at 300 PM CDT Wed Jul 8 2026

This afternoon through tonight: As was the case yesterday, we're seeing most of the deep convection focused outside of our forecast area this afternoon. A few storms could manage to move in or develop over the area as we go through the evening, but coverage should stay fairly sparse by July standards.

Thursday into the weekend: Rain chances will diminish for Thu- Fri and remain relatively low for this time of the year as the subtropical ridge rebuilds over the forecast area. Accompanying the building ridge will be an increasing heat danger risk with H850 temps approach 21 deg C and low level flow developing a more westerly component. We will continue to message this threat with a heat danger graphic and coordinate with neighboring forecast areas concerning any heat advisory issuances that may become necessary.

Early to mid next week: Global models have a had a strong signal for a shortwave trough rotating around the ridge and sending a boundary toward our area in the Mon-Tue time frame, and this could support a significant round or two of convective rainfall. Along with this, the heat will diminish to below dangerous levels. For next Wednesday, a typical mid summer regime with convective rainfall focused mainly over southern portions of the area should exist. /EC/

AVIATION

(06Z TAFS) Issued at 1041 PM CDT Wed Jul 8 2026

VFR conditions to prevail at the TAF sites through the period. Isolated SHRA or TSRA through the period could cause brief reductions in visibility or impacts from thunder, but confidence in impacts is too low to include in TAFs at this time. /NF/

PRELIMINARY POINT TEMPS/POPS

Jackson 73 93 74 93 / 10 10 10 10 Meridian 73 93 74 94 / 20 30 0 10 Vicksburg 75 94 76 93 / 10 10 0 0 Hattiesburg 75 94 75 94 / 10 20 0 40 Natchez 75 94 75 94 / 20 10 0 10 Greenville 74 94 76 94 / 20 10 0 0 Greenwood 74 94 75 94 / 30 30 0 0

JAN WATCHES/WARNINGS/ADVISORIES

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