textproduct: Jackson

KEY MESSAGES

- Wet weather and cool temperatures will settle into the forecast area through Saturday.

- Moderate to heavy rainfall is possible at times across portions of southern and southeastern Mississippi through Saturday.

DISCUSSION

Issued at 327 AM CST Thu Dec 4 2025

Through tonight: Cool and wet through the period as two main waves of rain move across our CWA along with cooler than normal temperatures continuing. Early morning radars were lit up with an area of light to moderate rain that was expanding from the southwest. Temperatures were at or below freezing over our northeast most zones last hour but the precipitation was still well to the west. Our northeast most zones are expected to warm above freezing during the next few hours before any measurable precipitation occurs. The patchy dense fog that was anticipated over the northeast has not developed and likely won't be an issue as clouds thicken and light rain moves in. This initial round of rainfall was associated with a disturbance moving up from the southwest and supporting a weak surface low that is progged to track along the central Gulf coast today. The rain will continue to increase in coverage early this morning before tapering off from the west later this morning as the disturbance and surface low shift east of our CWA. About the time the rain becomes confined to our southeast, additional light rain is expected to begin in our northwest associated with a second more potent disturbance approaching from the west. This will prolong rain chances into this evening before the rain again begins to taper off from the northwest after midnight. Rain chances will continue over our southeast into Friday morning. Low temperatures tonight will drop below freezing in our northwest. The precipitation will have ended well before any subfreezing temperatures occur. Normally colder locations and elevated roads and bridges may see a brief period of black ice in our northwest early Friday morning. /22/

Friday through Wednesday:

Friday-Sunday:

Wet pattern is expected Friday through the weekend as multiple shortwave disturbances progress through the southeast. Widespread rainfall is expected through the weekend. Southwest flow will transport Gulf moisture into the region. IVT/PW values in the 90- 99th percentile will lead to heavy rainfall at times. Expectation is that between tonight and the daytime Saturday, average rainfall amounts will be about 1 to 2.5 inches for areas south of Interstate 20, and about 1/4 inch to 1 inch for areas north of Interstate 20. /NF/ Lingering showers expected before a frontal boundary push through the ArkLaMiss region Sunday night.

Monday-Wednesday:

Post-frontal passage will bring cooler, dry air towards the southeast region. Northwest winds will drive cold, dry air towards the southeast region. High pressure traversing the Great Lakes/Atlantic Northeast will keep high/low temps chilly. High temps will start off on the cool side as highs for Monday and Tuesday range from the mid 40s to low 50s. Low temps are expected to be cold Monday night as lows range from the upper 20s to near 32 degrees in the southeast. /SW/

AVIATION

(06Z TAFS) Issued at 1211 AM CST Thu Dec 4 2025

MVFR cigs were observed already in the nw at 530Z while -RA was moving into the sw. Widespread RA/-RA will develop over the area from the sw tonight and continue through 18Z before starting to taper off from the nw during the aftn. This will result in widespread IFR conditions prevailing through much of the TAF period but LIFR cigs are expected to develop after 00Z Fri and prevail through the end of the TAF period. /22/

PRELIMINARY POINT TEMPS/POPS

Jackson 49 39 49 40 / 90 90 30 30 Meridian 47 38 51 39 / 90 90 40 40 Vicksburg 48 37 49 39 / 100 70 20 30 Hattiesburg 51 44 55 45 / 100 90 60 60 Natchez 50 38 50 41 / 100 70 30 40 Greenville 42 34 44 37 / 90 60 10 10 Greenwood 46 35 47 36 / 90 80 10 10

JAN WATCHES/WARNINGS/ADVISORIES

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