178 FXUS64 KHUN 011132 AFDHUNArea Forecast Discussion National Weather Service Huntsville AL 632 AM CDT Wed Oct 1 2025
...New AVIATION...
.NEAR TERM... (Today) Issued at 216 AM CDT Wed Oct 1 2025
Upper level ridging that expands from the Great Lakes down to the MS Valley remains anchored in place while Hurricane Imelda continues to slide northeastward off into the Atlantic. A disturbance that slid down the Appalachians will finish moving through the TN Valley today. Would not rule out a slight chance (10%) of a shower this afternoon mainly in NW AL where a weak boundary will also be present. Otherwise, patchy fog may develop in the valleys and near bodies of water this morning. If you encounter any fog, remember to slow down and not use your high beam headlights.
As for temps, highs will remain above seasonal norms as they climb into the mid to upper 80s this afternoon under mostly sunny skies. For reference, normal highs for the start of October is 82 degrees at MSL and HSV.
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.SHORT TERM... (Wednesday night through Friday) Issued at 1015 PM CDT Tue Sep 30 2025
Upper ridging and the aforementioned high will enforce a cooler and drier airmass into the late-week period as highs drop to the upper 70s/lower 80s across much of the area Thursday and Friday. A weak disturbance is progged to develop near the Gulf Coast late this week but any resulting showers/storms should be suppressed well south of the area. With that in mind, will maintain dry PoPs through Friday with sunny skies and light easterly winds. With the drier air in place and lack of recent rainfall, fog should become less likely each night.
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.LONG TERM... (Friday night through Tuesday) Issued at 1015 PM CDT Tue Sep 30 2025
Surface high pressure situated along the coastal Mid Atlantic region will provide an easterly flow across the Tennessee Valley into the upcoming weekend. Under generally clear skies, seasonably mild to warm condition are expected. Cool low temperatures Friday night will range in the 50s. Highs both Sat/Sun should rise into the low/mid 80s both days. Milder night lows are forecast Sat/Sun nights with lows in the lower 60s.
An easterly flow rounding the high along the east coast, will become more from the SE during Sun, Mon, Tue. This will begin to tap lower level moisture from the Gulf and Atlantic, with an increase of clouds as we go into the next week. This will return rain chances to the area beginning Monday. With daytime heating and higher instability, some thunder is possible in the afternoon and evening hours with this activity. High temperatures the first part of next work week should range in the lower 80s, with lows in 60s.
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.AVIATION... (12Z TAFS) Issued at 631 AM CDT Wed Oct 1 2025
Fog is currently pushing MSL into IFR, but after 14Z, expect VFR conditions to prevail til the end of the TAF period. Will not rule out a shower or two this afternoon at MSL but coverage and confidence is too low to include it at this time. HSV will be VFR through the TAF period.
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.HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. &&
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NEAR TERM...JMS SHORT TERM....25 LONG TERM....RSB AVIATION...JMS
NWS HUN Office Area Forecast Discussion