textproduct: Jackson

KEY MESSAGES

- Dangerously cold temperatures are likely areawide Friday night through Sunday. - Other than low chances of rain Thursday night, dry weather is expected through Monday.

MESOSCALE UPDATE

Issued at 557 PM CST Tue Jan 27 2026

An approaching shortwave trough is increasing high clouds over the region and bringing an uptick in moisture to our area. While still cold, temperatures tonight will be about 10 degrees warmer with the additional insulation of clouds and humidity. The increased humidly could also result in the chance for fog near areas of melting wintry precip, but chances were not high enough in our area yet to warrant specific messaging. Near-term weather elements were updated with latest guidance through the day tomorrow, but no significant changes were needed.

DISCUSSION

Issued at 122 PM CST Tue Jan 27 2026

Through Wednesday: Not as cold and continued dry. Latest visible satellite imagery clearly showed the snow/ice across our delta region. Latest surface observations showed temperatures above freezing across the whole CWA for the first time since the weekend. This should lead to some melting in our north. Temperatures will fall back below freezing this evening but not bottom out as cold as the last couple of nights. Latest surface analysis had a 1034mb high pressure centered over southern Louisiana. This surface high will essentially remain in place and weaken as a shortwave trough drops across the region and draws a stronger surface high southeast over the southern Plains through Wednesday. These features will help maintain colder than normal temperatures Wednesday but afternoon highs will top out several degrees warmer than this afternoon. /22/

Wednesday night through early next week...

The cold pattern will persist through the remainder of the period amid broad troughing over eastern CONUS. Just about every night this week will be subfreezing for much of the area. a series of reinforcing waves/cold fronts will lock in cold air over the region. While, these waves will largely be dry, a wave Friday has the the potential to eke out some moisture. Surface temperatures will be warm enough in the south to support rain, however it may be cold enough for snow in the north. Soundings are supportive of a rain/snow profile with cold air aloft. This should limit freezing rain potential. That said, cannot rule out brief freezing drizzle in areas with sufficient boundary layer moisture and dry DGZ. As the profile cools, flurries or light snow showers will be possible. These are not expected to be impactful.

A rapidly deepening surface low off the coast of the Carolina's will work to tighten the pressure gradient over the area and will bring brisk NNW winds around the backside in advance of a strong surface high. This raises great concern for dangerously cold wind chills, generally around -5 - +10 degrees. High confidence has prompted the introduction of an elevated graphic early to start messaging this. Will continue to monitor trends for wind gusts and a significant could be introduced and an extreme cold warning will likely be needed, possibly areawide. The coldest wind chill values are expected Friday night into Saturday as wind gusts peak around 25mph. Pressure gradient relaxes with the surface high Saturday night, limiting wind chill. Actual low temperatures will likely be in the teens areawide Saturday night into Sunday morning with pockets of single digits in the north. Lows this weekend have the potential to break several records.

Early next week, a shortwave and associated surface low will turn winds back out of the south and will help to moderate temperatures to near normal. This will also bring a possibility of light rain showers by Wednesday./SAS/

AVIATION

(00Z TAFS) Issued at 557 PM CST Tue Jan 27 2026

VFR conditions and winds generally from a westerly direction are expected to prevail at the TAF sites through the period. Some low stratus or BR or FG could develop near TAF sites in northern MS around 12Z-15Z, but confidence in impacts to these sites was too low to mention in TAFs at this time. /NF/

PRELIMINARY POINT TEMPS/POPS

Jackson 26 49 24 52 / 0 0 0 0 Meridian 25 50 24 52 / 0 0 0 0 Vicksburg 25 47 25 52 / 0 0 0 0 Hattiesburg 28 54 27 57 / 0 0 0 0 Natchez 25 50 26 55 / 0 0 0 0 Greenville 25 43 25 47 / 0 0 0 0 Greenwood 23 45 24 49 / 0 0 0 0

JAN WATCHES/WARNINGS/ADVISORIES

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