textproduct: Jackson

KEY MESSAGES

- Limited levels of dangerous heat stress will continue for the remainder of this week.

DISCUSSION

Issued at 405 AM CDT Wed Sep 9 2026

Today through Saturday: The subtropical ridge will remain strong over the forecast area today, and with drier air now in place, we will see a much less convective rainfall coverage. A weakness in the ridge will develop over the lower Mississippi Valley region during the Thursday through Saturday time frame. This will help to increase the coverage of diurnally driven convection, and thus should keep heat from returning to more dangerous levels of heat. We will maintain the limited heat threat graphic for now.

Sunday through Tuesday: Looking ahead to next week, the bulk of global model guidance indicate the mid level ridge will have no trouble re-intensifying to prior levels, which means we could once again be facing elevated levels of dangerous heat stress. However, the more onshore trajectory of the low level winds will help keep the heat at more manageable levels in our immediate area. Will thus hold off on advertising this additional heat until we get a little closer in time. /EC/

AVIATION

(12Z TAFS) Issued at 640 AM CDT Wed Sep 9 2026

Outside of any patchy early morning fog, VFR conditions will prevail through the forecast period. /EC/

PRELIMINARY POINT TEMPS/POPS

Jackson 95 72 96 72 / 0 0 20 10 Meridian 95 72 96 72 / 0 0 20 10 Vicksburg 95 73 95 73 / 0 0 10 0 Hattiesburg 95 73 93 73 / 0 0 50 10 Natchez 96 73 95 72 / 0 0 20 10 Greenville 98 74 99 74 / 10 0 0 0 Greenwood 96 72 98 72 / 0 0 0 0

JAN WATCHES/WARNINGS/ADVISORIES

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