FXUS64 KHUN 070341 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 1041 PM CDT Sun Apr 6 2025 ...New NEAR TERM, SHORT TERM, LONG TERM... .NEAR TERM... (Rest of tonight and Monday) Issued at 1041 PM CDT Sun Apr 6 2025 Light to occasionally moderate showers will continue to taper off tonight as a cold front moves through the area. Some lingering flooding may persist through the night especially in poor draining or low lying areas that received heavy rainfall over the past 24 hours. Drier air will slowly start to filter into the forecast area tonight and on Monday as high pressure builds to our west and an upper trough axis pushes east and centers over the Appalachians into the Tennessee Valley. Temperatures will fall to the mid to upper 40s tonight, making it the coolest night we have had in several days. We will transition to a drier and much colder airmass behind this front, and highs will be limited to the mid to upper 50s on Monday. Cloud cover will begin to thin tomorrow afternoon with occasionally breezy NNW flow through the day. && .SHORT TERM... (Monday night through Wednesday) Issued at 1041 PM CDT Sun Apr 6 2025 The short term period will be defined by dry and much cooler weather as the aforementioned trough continues to dig over the far east CONUS and sfc high pressure shifts south through the OH River Valley. Overnight lows will fall into the upper 30s to low 40s with some locations potentially at risk for frost tomorrow night. Highs on Tuesday will mimic Monday only rising into the mid to upper 50s. The coldest air will be felt Tuesday night into Wednesday morning as the sfc high centers just to our east and radiational cooling allows temps to fall to near or just below the freezing mark. Frost/Freeze headlines will likely be issued for this timeframe, so don't put away those winter coats and clothing just yet. Weak ridging will slowly shift east on Wednesday and a return to southerly flow and gradual height rises will allow temps to reach the mid to upper 60s on Wednesday ahead of a shortwave disturbance that will be responsible for our next chance of rain. && .LONG TERM... (Wednesday night through Sunday) Issued at 1041 PM CDT Sun Apr 6 2025 The aforementioned shortwave will dig through the Great Lakes region Wednesday night and a cold front will push east followed by longwave troughing that will dig into the Southeast by the weekend. A weak cold front will accompany the shortwave passage as a sfc low lifts into the Great Lakes. Low to medium chances (20-50%) of showers and maybe even embedded thunderstorms will increase Thursday morning first over NE AL and southern middle TN and then spread south and west into the remainder of the Tennessee Valley Thursday afternoon. The good news is that severe weather is not expected with this frontal passage. The upper level trough pushes to the east at the end of the week, bringing back dry weather to start the weekend. && .AVIATION... (00Z TAFS) Issued at 620 PM CDT Sun Apr 6 2025 MVFR cigs have prevailed through the afternoon hours and are expected to lower further as we get into the overnight hours. Some additional light shower development is possible through the evening hours, but confidence on coverage or intensity was not high enough to include in TAFs at this time. Reductions to IFR or brief periods of LIFR cigs will be possible during the overnight and morning hours before VFR conditions return late tomorrow morning. Southerly winds will shift to the north or NNW this evening as a cold front moves through the area. Wind gusts up to or just above 15kts will be possible Monday afternoon. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && $$ NEAR TERM...25 SHORT TERM....25 LONG TERM....25 AVIATION...25HUN-551534