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ALT National Hurricane Center forecast for Hurricane Isaias, issued October 8, 2026, at 10 AM CDT. Isaias has maximum sustained winds of 85 mph and is moving east-northeast at 10 mph. The hurricane is forecast to approach the northern Gulf Coast Friday evening, making landfall near the Mississippi-Alabama coastline before weakening as it moves inland Saturday and Sunday. Hurricane and tropical storm warnings are in effect along portions of the Gulf Coast, with additional tropical storm watches and warnings extending inland. Hazardous conditions can occur outside the forecast cone.

ALT National Hurricane Center map showing forecast peak storm surge from Hurricane Isaias along the northern Gulf Coast, issued October 8, 2026. The highest surge of 5–7 feet above ground level is forecast from Ocean Springs, Mississippi, through Mobile Bay, Alabama, to Indian Pass, Florida. Surge of 4–6 feet is forecast from Indian Pass to the Steinhatchee River, with 3–5 feet along portions of southeastern Louisiana and Florida's Big Bend. Lower surge of 1–3 feet is forecast along portions of coastal Louisiana and farther south along Florida's Gulf Coast. Values represent potential water heights above normally dry ground.