10/09/2026
Bottom Line Up Front: Hurricane Isaias will make landfall on the Gulf coast late tonight. The remnants will bring moderate and occasionally heavy rain and gusty winds to parts of the Tennessee Valley and southern Appalachian region starting tonight around midnight and persisting through Sunday morning.
What has changed?
• High confidence for gusty winds to our area starting tonight. Highest wind gusts will occur Saturday afternoon.
• Medium to low confidence for flooding rainfall
• Rainfall graphic has been updated as well as tropical storm track from earlier briefing. Despite the higher rainfall for, it still is not a massive amount rainfall. Given that approximately 7 days has passed since the last rainfall and tree leaves still present, some of this should be absorbed well. However, your usual places will likely have problems where the showers overperform.
What We Know
• Rain: The heaviest rain (1 - 3 inches) will be across the southern Tennessee Valley and upslope of the Plateau and southwest North Carolina.
• Isolated Flooding: Isolated flash flooding is possible across the southern Plateau, parts of southeast Tennessee, and southwest North Carolina.
• Timing: Rainfall starts around midnight tonight in the southern Tennessee Valley, with the highest probability for widespread rain occurring Saturday morning into Sunday morning. Rainfall will spread northward and gusty winds will too. By sunrise all areas of East Tennessee, southwest Virginia and southwest North Carolina will begin to experience the stronger winds. The greatest wind threat is expected Saturday afternoon through Sunday morning.
• Wind Potential: Strong gusty winds (60 - 70+ MPH) are likely across the eastern Tennessee mountains and foothills, as well as the higher terrain in Washington and Russell County Virginia. The greatest wind threat is expected Saturday through Sunday morning. Strong winds could extend into Clay and Cherokee Counties as well.
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