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 of heat stress will continue into the weekend.
DISCUSSION
Issued at 150 PM CDT Fri Jul 3 2026
A hot and humid airmass will remain over the forecast area as we go through the 4th of July weekend. While the recent heat stress is on the higher end of the normal range, values have trended downward some, and this makes the current heat stress event a little more marginal. Given it is a holiday weekend with a peak in outdoor activities and gatherings, we're being a little more aggressive with the messaging, and a heat advisory has been expanded to include the entire area through the 4th. Thereafter, a more definite weakness will develop in the subtropical ridge, and this will support greater coverage of convective rainfall coverage with earlier onset in the diurnal cycle. Because of this, peak heat indices and duration become a little more questionable in terms of meeting heat advisory thresholds, so will hold off on going further out. Overall, a typical active July convective regime is expected along with seasonably hot and humid conditions as we end the weekend and go through early to mid next week. Additional heat related graphics for limited/elevated heat threats may eventually become necessary as we get closer in time. /EC/
AVIATION
(12Z TAFS) Issued at 155 PM CDT Fri Jul 3 2026
VFR conditions to prevail at the TAF sites through the period, however isolated SHRA and TSRA through around 00Z Saturday could cause brief restrictions to visibility near a few of the TAF sites. Apart from any nearby TSRA, winds will be light and variable. /NF/
PRELIMINARY POINT TEMPS/POPS
Jackson 75 93 75 92 / 0 30 10 60 Meridian 75 95 75 93 / 0 30 10 60 Vicksburg 77 94 76 92 / 0 20 10 50 Hattiesburg 75 95 76 93 / 10 30 20 70 Natchez 76 94 75 93 / 0 30 10 70 Greenville 77 94 76 93 / 0 30 10 30 Greenwood 76 96 75 94 / 10 50 10 40
JAN WATCHES/WARNINGS/ADVISORIES
MS...Heat Advisory until 8 PM CDT Saturday for MSZ018-019-025>066- 072>074.
LA...Heat Advisory until 8 PM CDT Saturday for LAZ007>009-015-016- 023>026.
AR...Heat Advisory until 8 PM CDT Saturday for ARZ074-075.
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