FXUS64 KJAN 110519 AAB AFDJAN Area Forecast Discussion...UPDATED National Weather Service Jackson MS 1119 PM CST Sat Jan 10 2026 ...New AVIATION... .KEY MESSAGES... - Much cooler temperatures are expected this weekend into early next week. - Colder weather may be in store in the longer range. && .DISCUSSION... Issued at 300 PM CST Sat Jan 10 2026 Tonight through Monday night: Much drier and cooler air is advecting into the forecast area this afternoon, but the more prominent cold advection will take place Sunday when a polar stream trough, currently over the upper midwest, digs southward into the OH/TN Valley region. This thermal trough will support temperature readings that are much more seasonable for this time of year. In fact, temperatures will actually be running a bit below normal as we finish up the weekend and go into early next week. Tuesday through the remainder of next week: After a slight warm- up for Tue-Wed, it continues to look like we will see a more significant surge of cold air for late next week. Models strongly agree that the eastern CONUS longwave trough will become more amplified late next week as two polar stream troughs dig southward, and temperatures may fall well below freezing in our area. We'll have more details on this as we continue to monitor for any cold/winter weather threats and get closer in time. /EC/ && .AVIATION... (06Z TAFS) Issued at 1119 PM CST Sat Jan 10 2026 Lower clouds continue to erode, but higher clouds persist over the southeastern half of the area. VFR conditions will prevail through the TAF period, but northerly wind will be gusty at times, mainly during the daytime hours tomorrow. /DL/ && .PRELIMINARY POINT TEMPS/POPS... Jackson 37 53 29 53 / 0 0 0 0 Meridian 37 53 28 52 / 0 0 0 0 Vicksburg 36 52 29 53 / 0 0 0 0 Hattiesburg 42 59 32 56 / 0 0 0 0 Natchez 37 55 31 55 / 0 0 0 0 Greenville 37 48 29 50 / 0 0 0 0 Greenwood 35 50 28 52 / 0 0 0 0 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...None. LA...None. AR...None. && $$ EC/DL