textproduct: Jackson

KEY MESSAGES

- An active weather pattern will continue through Friday. - Heavy rain and localized flooding will be a possibility again Friday into Friday evening.

- Dry and cooler conditions will return this weekend.

DISCUSSION

Issued at 1235 AM CDT Thu Apr 30 2026

Through late next week:

The active jet pattern will continue to support unsettled weather through the end of the work week. A stalled surface boundary will waver roughly near the I-20 corridor and this will serve as the area of focus for rain and storms over the next couple of days. Moist advection will continue to feed this axis and promote cycles of training storms along and south of the boundary. This should result in additional rainfall of 2-3 inches and will carry a low risk for flash flooding. The limited HWO graphic will be maintained.

By Saturday, a shortwave digging and rounding the base of the longer wave trough will finally force the surface boundary out, leaving dry conditions in the wake. This will also bring notably cooler air to the area with temperatures falling below seasonal norms for the weekend. Perhaps most notable is for the potential for Saturday night lows to fall to the low 40s in some areas, which is about 15 degrees below normal for early May.

Temperatures will begin to steadily warm into early next week. A spoke of jet energy will once again push into the area and will aid in the moisture return and recovery supportive of a return of rain and storm chances by middle of next week. Too soon to get into the details, but it does seem that a surface low will drag another boundary over the area that may again stall and provide a focus for rain and storms. There may also be mesoscale features that cannot be parsed out yet. /SAS/

AVIATION

(18Z TAFS) Issued at 1241 PM CDT Thu Apr 30 2026

VFR conditions wl continue in the north through the TAF period. MVFR/IFR cigs along with periods of -RA/-SHRA wl continue cntrl and south through the TAF period. /22/

PRELIMINARY POINT TEMPS/POPS

Jackson 72 55 63 51 / 50 60 80 100 Meridian 73 52 64 49 / 70 50 80 100 Vicksburg 72 55 63 51 / 40 60 90 90 Hattiesburg 76 57 67 51 / 70 50 80 100 Natchez 73 56 62 51 / 70 60 90 100 Greenville 71 55 66 52 / 10 30 60 70 Greenwood 73 54 67 51 / 10 20 50 80

JAN WATCHES/WARNINGS/ADVISORIES

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