Severe storms swept Through Knoxville, Tennessee on September 4, 2025, damaging dozens of hangars and planes at the Sky Ranch Airport. The storm also knocked out power for over 7 000 customers as it downed trees and power lines across Knox County.
Hurricane Kiko remains a strong category 3 system with maximum sustained winds of 205 km/h (125 mph), moving west at 15 km/h (9 mph). Swells from the storm are expected to reach the Hawaiian Islands late this weekend, producing life-threatening surf and rip currents.
Hurricane Lorena weakened into a tropical storm on September 4, 2025, after bringing heavy rains and flooding to Los Cabos, Mexico. The storm, though no longer expected to make landfall, is still going to bring life-threatening flood conditions to Baja California Sur, Sonora, and parts of the southwestern United States.
A shallow earthquake registered by the USGS as M6.0 hit Fox Islands, Aleutian Islands, Alaska at 20:57 UTC on September 3, 2025. The agency is reporting a depth of 10 km (6.2 miles).
The 6-5 Fire, part of the TCU September Lightning Complex, has burned more than 2 400 ha (6 000 acres) in Tuolumne County, California, since igniting on September 2, 2025, destroying at least five homes in the historic settlement of Chinese Camp and forcing evacuations. Containment remains at zero percent.
A strong cold front is sweeping southeast across the Great Lakes, Upper Midwest, and central Plains on September 3, 2025, bringing temperatures up to 25°C (45°F) below seasonal averages and triggering strong to severe thunderstorms.
Episode 32 of the Halemaʻumaʻu eruption at Kīlauea volcano, Hawaii, began at 16:35 UTC (06:35 HST) on September 2, 2025, producing lava fountains up to 150 m (500 feet) high. The eruption remains confined to the summit crater within Hawai‘i Volcanoes National Park.
Two people were killed in San Antonio when Salado Creek flooded during thunderstorms that swept across Texas on August 31, 2025.
Beekeepers across the United States reported record managed honeybee colony losses between April 2024 and April 2025, with over 60% of hives lost in Texas, according to preliminary survey results and beekeeper accounts. Nationwide, an estimated 55.6% of colonies died—marking the highest loss rate since official monitoring began in 2010.
A strong early September cold air intrusion is forecast to affect much of the central and eastern United States from September 3 to 7, 2025, with daytime highs of 15–20°C (59–68°F) and overnight lows of 7–9°C (44–48°F) across the Midwest and Great Lakes, up to 10°C (18°F) below average for this time of year. This development also marks a rapid seasonal transition.
