textproduct: Jackson

KEY MESSAGES

- Patchy dense fog possible tonight.

- Cool temperatures with rain across the southeast half of the area will continue through Saturday.

- The next widespread light freeze is expected Monday night into Tuesday morning.

MESOSCALE UPDATE

Issued at 827 PM CST Fri Dec 5 2025

Cloudy and dreary forecast is on tap overnight, with persistent light rain chances in the Pine Belt of Highway 84 to Interstate 59 corridors through midday Saturday. RAP and GOES East water vapor analysis haven't changed in the last 24 hrs: trough axis spinning over the Baja Peninsula, with broad southwesterly flow/ascent. There is quite the gradient of deep moisture (precipitable water around 0.3 in Little Rock, 0.75 inches in Jackson to 1.2 inches in Slidell). Low-level moisture will be persistent overnight, keeping widespread stratus around and seasonable lows (35F to 39F north of Interstate 20 and 40F to 45F to the south). Fog will be the main concern, with stagnant pattern, low-level moisture, wet ground and some crossover temps around 2F to 3F. HREF dense fog probs (10-20%) center along and east of MS River into central, north-central to east-northeast MS. This will likely be transient and short duration. Leaned a little more towards gridded LAMP and HREF/HRRR visibility guidance/probs. Added areawide "Limited" hazard graphic for patchy dense fog. Forecast updates are out earlier. /DC/

DISCUSSION

Issued at 1232 PM CST Fri Dec 5 2025

Tonight and Tomorrow: A few lingering showers will remain possible across southern portions of the area, nearer a surface boundary that is stalled near the coast. This precipitation and cloudiness will help moderate temperatures nearer the coast where areas further inland will be increasingly seeing dry, continental air filtering in from the north. For this reason, most areas will remain cool and dry through Saturday as overnight lows tonight drop into the 30s F for most and lower 40s F along the highway 84 corridor. Areas along and north of highway 82 will see some risk for a brief freeze just prior to dawn.

Through next week:

The overall pattern will continue to feature a general ridge pattern over the western US and a trough in the east. Locally, this will mean mostly northwesterly flow and reinforcing cool intrusions. Along with this, the troughy nature of the pattern suggests some opportunity for periods of precipitation. The first of which could arrive in the later part of Sunday, featuring a cool or cold rain with limited hazards likely. Following the first wave and front Sunday into Monday, the next round of showers and reinforcing cold front looks likely towards the end of next week when a more robust shortwave moves through the longwave trough. Uncertainty at the 7 day range with an active jet stream suggests there could be shifts in timing or intensity of this activity, but there does appear to be an increased chance for thunder compared to recent activity that has occurred with very limited thermodynamic instability. Some longer term guidance suggest dewpoints could rise into the 60s F ahead of that front which would be probable to support some convective activity were that to be the case.

Otherwise, temperatures this week will generally be near to slightly below normal with highs in the mid 50s to lower 60s F and lows in the middle 30s to 40s F most days with a few opportunities for a freeze on a few of the chiller nights. For now, the coldest night appears likely to be Monday night when most areas see temperatures near freezing with northernmost areas dipping into the middle 20s F. /86/

AVIATION

(06Z TAFS) Issued at 1149 PM CST Fri Dec 5 2025

Light rain has been removed from TAF sites this forecast cycle. Main concerns will be IFR to LIFR flight restrictions due to lowered ceilings/stratus and some low vsby/BR (MVFR/IFR). There could be some dense fog at times, with impacts possible at all TAF sites. Improvements will occur to MVFR after 06/14-18Z, lifting to VFR after (HBG and PIB may hold on to MVFR ceilings through around 16/21-22Z Saturday). Winds will remain generally light and variable, shifting southeasterly late Saturday afternoon. Additional IFR stratus may lift back north after 07/02Z Sunday into HBG and PIB./DC/KP/

PRELIMINARY POINT TEMPS/POPS

Jackson 45 39 58 43 / 10 10 10 0 Meridian 45 40 56 39 / 20 10 10 0 Vicksburg 41 38 59 44 / 10 10 0 0 Hattiesburg 48 44 59 46 / 40 50 30 10 Natchez 41 39 61 46 / 20 20 10 0 Greenville 37 36 53 41 / 0 10 0 0 Greenwood 41 36 56 41 / 0 10 0 0

JAN WATCHES/WARNINGS/ADVISORIES

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