An unusually strong summer atmospheric river made landfall over the Pacific Northwest late on August 14, 2025, reaching AR 3 along the Washington coast and producing 75–200 mm (3–8 inches) of rain across parts of western Washington.
Tropical Storm Erin is forecast to grow substantially over the western Atlantic this week, producing dangerous surf, rip currents, and a possible storm surge of 0.6 to 1.2 m (2–4 feet) from Cape Lookout to Duck, North Carolina, as it approaches the U.S. East Coast, the Bahamas, Bermuda, and Atlantic Canada.
Category 4 Hurricane Erin was located 220 km (140 miles) north-northeast of Grand Turk Islands at 18:00 UTC (14:00 EDT) on August 18, 2025, with maximum sustained winds of 220 km/h (140 mph), maintaining Category 4 strength while moving northwest at 20 km/h (13 mph).
An atmospheric river (AR) with moderate-to-strong integrated vapor transport (IVT) exceeding 500 kg m⁻¹ s⁻¹ is forecast to make landfall over the Pacific Northwest and southern British Columbia on the evening of August 14, 2025, bringing sustained AR conditions for about 24 hours and significant precipitation through August 16.
Widespread flash flooding struck Chattanooga, Tennessee, on August 12, 2025, after 160 mm (6.4 inches) of rain fell in a single day, prompting a local state of emergency, multiple rescues, and resulting in three fatalities and one missing person.
A severe dust storm produced near-zero to zero visibility along Interstate 10 between Lordsburg and Deming, New Mexico, at about 17:30 local time (LT) on August 12, 2025, prompting a full closure of the corridor between mile markers 20 and 81, roughly 98 km (61 miles). Conditions improved in the area by 18:30 LT.
Severe thunderstorms with large hail and damaging winds are forecast to impact parts of the central and southern Plains, U.S., this morning, August 11, 2025, as an upper-level disturbance from the central Rockies interacts with a slow-moving frontal boundary.
A woman was killed and a man critically injured on August 9, 2025, when a large tree fell on their vehicle at Two Rivers State Park near Waterloo, Nebraska, during severe storms.
Milwaukee recorded its second-wettest day on August 9, 2025, with 146 mm (5.74 inches) of rain causing historic flooding across the city and nearby areas.
Severe thunderstorms threaten North Dakota, eastern Montana, and northwest Minnesota on August 8, 2025, with damaging winds, large hail, and possible tornadoes, while extreme heat affects over 40 million people across the central U.S. The National Weather Service forecasts continued storm risks into August 9, alongside flash flooding concerns in Iowa, southern Wisconsin, and northern Illinois.
