161 FXUS64 KHUN 112352 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 652 PM CDT Wed Jun 11 2025 ...New AVIATION... .NEAR TERM... (Tonight) Issued at 210 PM CDT Wed Jun 11 2025 A midlevel cloud deck has developed over the Tennessee Valley this afternoon. Expecting partly cloudy skies to persist overnight, with calm to light variable winds area-wide. A low chance of patchy fog is possible once again later tonight into early tomorrow morning as well, especially for the river valleys and near bodies of water. Lastly, lows are still on track to dip into the lower to upper 60s later tonight. Overall, no significant changes were needed to the forecast. Previous Discussion: This morning`s visible imagery depicts a few mid and high clouds, but overall a mostly sunny sky. Surface high pressure will remain in place over the central Appalachians today. Weak and variable 5h flow will persist as well. An 8h/surface boundary will lift slowly northward into central AL, but this will keep cumulus and any low chance of showers or thunderstorms well south of us today. High temperatures will once again reach the middle to upper 80s this afternoon. && .SHORT TERM... (Thursday through Saturday) Issued at 950 AM CDT Wed Jun 11 2025 An upper trough in the south central U.S. will sluggishly lift north-northeast through Friday into Saturday, remaining west of the MS River valley. The trough will induce a south-southwest flow in low to mid levels, amplifying moisture and instability levels across the TN valley and southeast U.S. A plume of 1.5+ inch PWs will overspread the region quickly late this week. On Thursday, thunderstorm chances will remain quite low, but then subsequently increase greatly Saturday into Sunday with the help of small scale MCVs that generate the next day or south nearer the Gulf Coast. Also, the aformentioned surface boundary will lift northeast. Overall, this will be a more summerlike pattern with mainly diurnally driven thunderstorms which should tend to wane after loss of heating. Lightning, locally heavy rainfall and brief gusty winds will be the main hazards during this period. Dew points will rise into the upper 60s to lower 70s. A near persistence temperature forecast is foreseen with highs in the middle to upper 80s (lower 80s atop the higher plateaus), and lows in the upper 60s to lower 70s. && .LONG TERM... (Friday night through Tuesday) Issued at 1035 PM CDT Tue Jun 10 2025 The upper low will begin to broaden out and weak troughing will pivot across the area late Saturday into Sunday, but there are some disagreements regarding the northern extent of the warm sector and the evolution of the upper low/trough at this range. What that means in terms of the forecast each day will probably result in very little change, as temps are expected to remain in the mid 80s to low 90s each afternoon with lows in the lower 70s. It will certainly feel more like summer as heat indices could approach the upper 90s in some areas from Friday onward. High rain/storm chances are forecast each afternoon especially during peak heating hours. The western Atlantic high is forecast to remain the main influence on weather here locally through Monday but models begin to diverge beyond that time period. Stay tuned as there are some signs that even warmer temperatures could be on the way next week! && .AVIATION... (00Z TAFS) Issued at 652 PM CDT Wed Jun 11 2025 VFR conditions will persist through much of the TAF period at both terminals aside from low chances for showers and thunderstorms tomorrow afternoon. This threat has been handled by PROB30 groups during key hours of the afternoon where MVFR conditions will be possible within thunderstorm activity. Otherwise, expect mostly clear skies and light winds. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && $$ NEAR TERM...26 SHORT TERM....17 LONG TERM....25 AVIATION...25