textproduct: Jackson

KEY MESSAGES

- Marginal Risk of isolated severe storms across central and eastern portions of the area today.

- Limited Threat of dangerous heat stress continues today.

DISCUSSION

Issued at 238 AM CDT Tue Sep 22 2026

Today through next Monday...Weak troughing will exist across mainly far eastern portions of the forecast area, as high pressure aloft begins building into the region from the west. At the surface, a frontal boundary will stall through or just south of the region by the end of the day. This, combined with daytime heating in the middle 90s, will again result in isolated to scattered showers and storms developing across areas mainly along and southeast of the Natchez Trace Parkway this afternoon. Heavy downpours and frequent lightning will be possible with storms, with gusty winds possible. As such there is a Marginal Risk for isolated severe storms capable of producing damaging wind gusts over some central and eastern portions of the CWA this afternoon.

With high pressure aloft and at the surface becoming more prevalent across the region through the remainder of the forecast period, rain chances essentially dwindle to nil. However in the aforementioned frontal boundary's wake, drier air and less hot conditions will exist across the forecast area for the remainder of the week and into the weekend. As highs Wednesday range from the low to middle 90s, come late week and into the weekend they'll range from the upper 80s to lower 90s. Lows will likewise follow suit as they'll range from the upper 60s and lower 70s Wednesday morning. Then cooling into the low to middle 60s late in the week and through the weekend. /OAJ/

AVIATION

(12Z TAFS) Issued at 622 AM CDT Tue Sep 22 2026

VFR flight categories will prevail at area TAF over the next 24 hours. Isolated convection will be possible, particularly this afternoon as a frontal boundary sinks southeast through the region. This could result in a brief period of MVFR/IFR ceilings and/or visibilities if observed within a site's respected aerodrome. Winds will become northerly in the front's wake, and sustained between 5-8 knots during the late morning and afternoon hours. /19/

PRELIMINARY POINT TEMPS/POPS

Jackson 95 70 93 66 / 10 10 0 0 Meridian 94 69 93 67 / 10 10 0 0 Vicksburg 95 70 93 66 / 10 10 0 0 Hattiesburg 95 71 95 69 / 10 10 0 0 Natchez 96 71 94 67 / 20 10 0 0 Greenville 96 69 92 63 / 20 0 0 0 Greenwood 95 68 92 62 / 10 0 0 0

JAN WATCHES/WARNINGS/ADVISORIES

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