FXUS64 KHUN 190837 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 337 AM CDT Thu Mar 19 2026 ...New NEAR TERM... .KEY MESSAGES... Updated at 337 AM CDT Thu Mar 19 2026 - Frost Advisory is in effect for DeKalb, Marshall and Jackson counties of NE Alabama until 8 AM CDT. - Dry weather and a warming trend will begin today and continue through this weekend, with highs reaching near record values on Sunday. && .NEAR TERM... (Today) Issued at 337 AM CDT Thu Mar 19 2026 An amplified upper level pattern, ridging west and troughing east, continued across the greater North American domain this morning. This general setup should continue into Saturday, albeit a bit flatter as both the upper high over the Desert SW and the eastern CONUS trough weaken somewhat, and shifts further to the east. This process should result in continued dry weather into Friday, with daily high and low temperatures gradually warming. Before then, still cold air was in place along with light winds and air temperatures chilling into the low/mid 30s over NE Alabama was presenting risks of late night frosting. So have issued a Frost Advisory that will be in effect until 8 AM CDT for DeKalb, Jackson, and Marshall counties of NE Alabama. A look at various mesonet/backyard weather stations indicated temperatures in the low/mid 30s over parts of those counties. Otherwise, additional high altitude clouds moving in from the NW are expected across the Tennessee Valley today. With a now established southerly lower level flow and a strong late winter sun (the Spring season starts Friday around 946 AM CDT), high temperatures later today should rise into the upper 60s east and lower 70s west. Light SE winds should become S-SW 5-10 mph .SHORT TERM... (Thursday night through Saturday) Issued at 921 PM CDT Wed Mar 18 2026 A gradual warming trend is forecast through the end of the work week and into the start of the weekend. The large amplitude upper level ridge across the western CONUS shifts eastward bringing back southerly sfc flow. Dry conditions will persist through the short term period with temperatures warming into the mid 70s on Friday and lower 80s by Saturday. Overnight lows remain mild as well in the mid 50s. && .LONG TERM... (Saturday night through Wednesday) Issued at 921 PM CDT Wed Mar 18 2026 Warm conditions continue on Sunday as the influence of high pressure to our west remains strong. Expect highs to once again return to the low to mid 80s. A cold front attempts to push through Sunday night into Monday, but ensemble guidance keeps the area dry. This will be a feature to watch, as latest model guidance does show precip across KY/N TN. However, it will be a bit cooler to start the work week with temperatures on Monday through Wednesday in the upper 60s to lower 70s. Behind the cold front, northwest flow takes shape bringing a series of shortwave through the area. Lots of uncertainty in timing of these features, but at least a low chance of showers is expected Tuesday into Wednesday. && .AVIATION... (06Z TAFS) Issued at 1231 AM CDT Thu Mar 19 2026 Surface high pressure situated east of the Mid Atlantic and New England coasts, will help maintain a southerly flow across this region. Light winds overnight should become S-SW at 5-10kt a few hours after daybreak, then diminish below 5kt after dusk. A NW flow in the high altitudes will bring periods of high clouds across the area, with just few to scattered coverage expected. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...Frost Advisory until 8 AM CDT this morning for ALZ008>010. TN...None. && $$ NEAR TERM...RSB SHORT TERM....GH LONG TERM....GH AVIATION...RSB