Area Forecast Discussion
Issued by NWS Huntsville, AL
Issued by NWS Huntsville, AL
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725 FXUS64 KHUN 030006 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 606 PM CST Sun Nov 2 2025 ...New AVIATION... .KEY MESSAGES... Updated at 147 PM CST Sun Nov 2 2025 - Frost Advisory issued for NW AL Monday morning - Dry conditions return tonight for all of the TN Valley - Low rain chances (30% or less) return next weekend && .NEAR TERM... (Tonight) Issued at 147 PM CST Sun Nov 2 2025 As an upper level trough and subsequent sfc low push southeast through the TN Valley, showers continue to impact portions of the area. While there is a low chance of any lightning formation (primarily in NE AL), there has been very small hail reported in a few showers due to cold air aloft. Showers will continue through the early evening hours before pushing eastward out of the area. Tonight, frost and patchy fog will be a concern primarily in NW AL where skies clear with the arrival of sfc high pressure and temperatures drop into the mid 30s. Elsewhere, lingering cloud cover should mitigate widespread frost and fog formation. A Frost Advisory has been issued for Lauderdale, Colbert, and Franklin (AL) counties Monday morning. Be sure to cover any sensitive vegetation and wear multiple layers if heading outdoors. && .SHORT TERM... (Monday through Wednesday) Issued at 919 AM CST Sun Nov 2 2025 Aforementioned sfc high pressure with weak upper level ridging is forecast to remain over the TN Valley through the short term period, allowing for continued dry conditions and a general warming trend. High temperatures are forecast to reach the lower 60s Monday before increasing to the lower 70s by Wednesday. Overnight lows are forecast to remain in the mid 30s to 40s. && .LONG TERM... (Tuesday night through Saturday) Issued at 1145 PM CDT Sat Nov 1 2025 The established zonal flow by Tuesday should continue to keep warmer temperatures in the forecast through the end of the week with plenty of sunny skies. Highs should climb into the upper 60s to lower 70s the remainder of the week with high pressure over the area. Lows should climb back into the 40s or lower 50s. This area of high pressure weakens some towards the weekend, as a troughs axis and frontal boundary moves east towards the area. Cloud cover should increase during the day on Friday ahead of it. However, not expecting any appreciable rainfall through then. Highs by Friday could climb back into the lower to mid 70s by then. For now kept on the low end of that sticking with guidance given variability in the 925 mb temperatures shown by models. As stronger lift and more moisture advects into the area Friday night closer to the approaching cold front, rain chances increase to between 20 and 30 percent. This may be a bit underdone, but deeper moisture and the best lift with this trough axis still remain primarily over the Ohio Valley into the northern Tennessee Valley area. Shear is fairly strong though, so will have to watch this system in case forcing and instability increase further south with time. This quick moving cold front pushes east and primarily off the east coast Saturday morning. Drier and colder air is again forecast to move into the area behind it Saturday night into Sunday. This should drop highs back into the 60s. && .AVIATION... (00Z TAFS) Issued at 606 PM CST Sun Nov 2 2025 Both terminals are experiencing clear or partly cloudy skies at this time. Winds have already decoupled at KMSL, but still are around 4 knots at KHSV. Good radiational cooling is expected much of tonight, though some brief clouds around 5000 feet may briefly affect either terminal. Expect fog reductions to visibilities overnight. For now, kept VFR VSBYS through 08Z at both terminals. However, this may need to be amended for a quicker lowering of VSBYS due to fog development after midnight. Since KMSL is already decoupled brought VSBYS down to 1 SM by 08Z and included a tempo for 1/2SM VSBYS between 08Z and 12Z. Not going quite as low with VSBYS at KHSV, but this may change. For now, lowered VSBYS to 2SM at 08Z at KHSV with a tempo from 08Z to 12Z dropping to around 1SM. BY 15Z, expect VFR conditions to return. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...Frost Advisory from 1 AM to 8 AM CST Monday for ALZ001>003. TN...None. && $$ NEAR TERM...HC SHORT TERM....HC LONG TERM....KTW AVIATION...KTW