textproduct: Jackson

KEY MESSAGES

- Cooler, drier weather early this week will transition to warmer and more humid by mid to late week.

- Chances for showers and thunderstorms will return to portions of the forecast area by mid week.

MESOSCALE UPDATE

Issued at 618 PM CDT Sun Apr 5 2026

Rest of this evening through tonight...

Quiet and dry evening is on tap across the region. Synoptic/water vapor analysis indicate deep troughing over the eastern half of the nation while mean ridging is parked over the Four Corners to Intermountain West. This longwave pattern reinforces the cold front passage yesterday evening and dry surface high building south tonight. Northerly cold advection will be the norm, with much drier airmass building in (PWs around 0.2 to 0.4 inches areawide). This environment supports seasonable lows or slightly cooler, some 2F to 5F below in Delta (48F to 53F along and south of Interstate 20 while 44F to 48F degrees north of Interstate 20). Updates are out. /DC/

DISCUSSION

Issued at 128 PM CDT Sun Apr 5 2026

In the wake of last night's cold front passage, cold and dry advection is keeping temperatures mostly below 70 degrees across the forecast area today. Earlier showers have ended, but the last low- level moisture is hanging on in the form of an area of low stratus in southeast Mississippi at the moment. Low clouds and moisture will continue to decrease, with RH around 30-35 percent tomorrow afternoon and PWAT values down to less than 1/4 inch. Mid-level ridge and surface high over the eastern CONUS will reinforce the dry air in the broader region with trajectories out of the east, but moisture will wrap around the high pressure by mid to late week. Increasing PWATs along the Gulf Coast and into the High Plains will set up the atmosphere for "air mass" style afternoon shower and thunderstorm development. By late this week, the plume of deeper moisture will arc more across the Mississippi River Valley and support at least slight chance POPs mainly west of Interstate 55. Temperatures will rebound slightly above normal by mid to late week as well. /NF/

AVIATION

(06Z TAFS) Issued at 1241 AM CDT Mon Apr 6 2026

VFR conditions will persist through the TAF period. Winds will remain northeasterly with possible gusts of up to 20kts after 14-15Z./KP/

PRELIMINARY POINT TEMPS/POPS

Jackson 71 46 75 53 / 0 0 0 0 Meridian 70 45 76 51 / 0 0 0 0 Vicksburg 71 46 75 54 / 0 0 0 0 Hattiesburg 71 46 78 53 / 0 0 0 0 Natchez 71 45 76 54 / 0 0 0 0 Greenville 70 47 74 53 / 0 0 0 0 Greenwood 72 47 76 53 / 0 0 0 0

JAN WATCHES/WARNINGS/ADVISORIES

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