textproduct: Jackson

KEY MESSAGES

- Dangerous heat stress continues into the weekend.

- A pattern favorable for flash flooding develops early next week.

DISCUSSION

Issued at 128 PM CDT Thu Jun 11 2026

Tonight through next Wednesday...High levels of heat and humidity will remain the story heading into this upcoming weekend. With highs climbing into the 90s through Sunday and dew points well into the 70s, afternoon heat index readings will be between 100-110F each day. This dangerous heat stress has resulted in a "Heat Advisory" being hoisted for a portion of the CWA Friday and Saturday. This advisory could be extended into Sunday, with some changes in the layout of the affected counties/parishes possible.

Although the heat tapers off during the start of the new work week, moisture will be aplenty across the region. Moisture associated with a tropical wave meandering about the Yucatan, will overspread the Lower Mississippi River Valley next week, resulting in precipitable H2O values hovering around 2.5 inches. This, as a trough digs south and swings east across the nation's mid-section resulting in a front dropping south into the forecast area and stalling, will set the stage for multiple bouts of heavy rain moving across the region.

Currently a "Limited Threat" for flash flooding is being advertised across the entire forecast area next Monday through Wednesday as both high rainfall rates and training of convection could result in flash flooding. While this is still several days out, please continue to monitor the latest forecast as categorical adjustments to the threat area will likely be made, with a possible "Flash Flood Watch" needed for portions of, if not all of, the forecast area during that timeframe. /19/

AVIATION

(18Z TAFS) Issued at 1240 PM CDT Thu Jun 11 2026

VFR prevails across the area. Clear skies will prevail through the rest of today and this evening. Clouds will begin to build in through the morning tomorrow. Briefly MVFR visibility is possible at PIB, HBG, and HEZ tomorrow morning. /SAS/

PRELIMINARY POINT TEMPS/POPS

Jackson 76 94 77 94 / 0 10 10 20 Meridian 74 95 76 95 / 0 10 10 30 Vicksburg 76 94 77 94 / 0 10 0 10 Hattiesburg 73 94 76 95 / 0 10 10 20 Natchez 75 95 76 95 / 0 0 0 0 Greenville 78 92 77 94 / 10 20 10 20 Greenwood 77 93 76 95 / 0 40 30 30

JAN WATCHES/WARNINGS/ADVISORIES

MS...Heat Advisory from 11 AM Friday to 8 PM CDT Saturday for MSZ018- 019-025-034-035-040>043-047>049-053>055-059>065-072>074.

LA...Heat Advisory from 11 AM Friday to 8 PM CDT Saturday for LAZ009- 016-024>026.

AR...Heat Advisory from 11 AM Friday to 8 PM CDT Saturday for ARZ075.