textproduct: Jackson
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Dangerous levels (limited to elevated) of heat will return Thursday and persist into the weekend.
DISCUSSION
Issued at 149 PM CDT Thu Jul 9 2026
Persistent sub-tropical ridging stretching across the southwest will maintain abnormal heat and humidity through the end of the workweek, the inclusion of a heat advisory will remain in effect for Bolivar/Leflore/Sunflower/Washington through 8pm tonight. Afternoon high temperatures will remain a few degrees above climo normals, combined with hotter than normal overnight lows and high humidity, we will continue to indicate the risk for elevated (level 2/4) and limited (level 1/4) risk areas for dangerous heat stress in the GWHO into this weekend. For today and tomorrow a broad area of low-level ridging will keep this warm airmass in place, resulting in a typical pattern of diurnal isolated to scattered afternoon convection./KP/
Saturday through Wednesday:
A potent upper-lvl ridge will build and traverse over the Northern Plains, resulting in downstream troughing over the Mid-MS Valley. The trough will slowly push a frontal boundary towards the southeast through the weekend and into next week. As the boundary progress towards the area, rain chances will be likely to widespread (70-85%) with the greatest coverage on Sunday and Monday. Rain will stick around through mid- week as the boundary gradually moves over the area. With the ongoing rain potential, heat relief is expected as heat indices drop below 105 degrees.
AVIATION
(00Z TAFS) Issued at 759 PM CDT Thu Jul 9 2026
VFR conditions and winds from the south generally less than 10 kts expected to prevail at the TAF sites through the period. /NF/
PRELIMINARY POINT TEMPS/POPS
Jackson 75 94 75 93 / 10 0 10 20 Meridian 74 94 75 94 / 20 10 10 40 Vicksburg 76 94 76 94 / 10 0 10 10 Hattiesburg 75 95 76 94 / 20 20 10 60 Natchez 75 95 75 94 / 0 10 10 40 Greenville 76 95 77 94 / 0 0 0 20 Greenwood 76 95 76 94 / 0 0 10 40
JAN WATCHES/WARNINGS/ADVISORIES
MS...Heat Advisory until 8 PM CDT this evening for MSZ018-019-025-034.
LA...None. AR...None.
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