The Garnet and Dillon wildfires have grown rapidly over the past 3 days, burning through more than 4 000 ha (10 000 acres) of land in Fresno and Siskiyou counties as of August 27, 2025.
The Alaska Volcano Observatory (AVO) raised the Volcano Alert Level for Shishaldin volcano, Alaska, to Advisory and the Aviation Color Code to Yellow at 11:48 AKDT (19:48 UTC) on August 25, 2025, following increased seismicity, gas emissions, and vapor activity.
A contract firefighter died of a cardiac emergency while working on the Bivens Creek Fire about 24 km (15 miles) northwest of Virginia City, Montana, on August 17, 2025. The incident was made public on August 25.
A massive haboob swept through metro Phoenix, Arizona on August 25, 2025, reducing visibility to near zero and grounding flights at Sky Harbor International Airport. Power outages peaked at more than 54 000 customers, with more than 15 000 still without electricity by the end of the day.
More than 25 waterspouts were observed over the Great Lakes between August 23 and 24, 2025. More water spouts are expected over the lakes through August 26.
The Pickett Fire has burned 2 642 ha (6 531 acres) of land north of Calistoga, Napa County, California, since August 21, 2025. Nearly 200 residents have been forced to evacuate, and multiple prominent wineries in the Napa Valley are under threat.
Tropical Storm Fernand formed on August 23, 2025, southeast of Bermuda as the sixth named storm of the 2025 Atlantic hurricane season. The system is currently moving north-northeast, with weakening forecast in the coming days.
Charleston broke a daily rainfall record as a stalled cold front over the southeastern United States dropped up to 300 mm (12 inches) rain in Charleston County, on Friday, August 22, 2025. The system also affected parts of southeastern Georgia, prompting Level 2 of 4 flash flood risk alerts from the Weather Prediction Center, with rainfall rates exceeding 75 mm (3 inches) per hour and localized accumulations up to 150 mm (6 inches) expected through Sunday, August 24.
Hurricane Erin made its closest approach to the U.S. coast overnight on August 19–20, 2025, closing part of North Carolina Highway 12 and prompting evacuations in coastal counties. Over 70 rip current rescues were reported along North Carolina beaches as the system brought storm surge, coastal flooding, and overwash to the Outer Banks.
The Alaska Volcano Observatory lowered the Volcano Alert Level for Mount Spurr to Normal and the Aviation Color Code to Green at 10:07 AKDT (18:07 UTC) on August 20, 2025, following a gradual decline in unrest and the absence of ground deformation since March 2025.
