A swarm of hundreds of small earthquakes was detected beneath the summit of Mount Rainier, Washington, starting at 01:29 LT (08:29 UTC) on July 8, 2025, prompting increased monitoring by the USGS Cascades Volcano Observatory and the Pacific Northwest Seismic Network.
Wet antecedent soil moisture increased streamflow magnitudes by 2–4.5 times during atmospheric river storms across 122 U.S. West Coast watersheds between 1980 and 2023, according to a new analysis. The study, published in the Journal of Hydrometeorology on June 4, 2025, establishes a nonlinear threshold effect in soil moisture, above which flood response to atmospheric rivers increases sharply.
At least 3 fatalities have been reported across North Carolina as deadly floods caused by the remnants of Tropical Storm Chantal continue across the state on Tuesday, July 8, 2025. The storm has dropped reportedly over 254 mm (10 inches) of rain in some areas and spawned at least four tornadoes in the state.
All 27 individuals previously reported missing from Camp Mystic were confirmed dead on July 7, 2025, following historic floods that affected central Texas on July 4. The overall death toll has reached 90, with search and rescue operations still ongoing across the region.
Severe flash flooding struck central Texas from July 4 to 6, 2025, after extreme rainfall of up to 517 mm (20.3 in) fell within hours, causing rivers to surge by more than 9 m (30 feet) and resulting in extensive damage and loss of life.
Heavy rain produced by Tropical Storm Chantal on July 6 2025, inundated roads, damaged infrastructure, and forced emergency declarations in North Carolina’s Moore and Orange counties.
A fast-moving brush fire burned 38 ha (95 acres), injured five, and damaged at least two homes in Māili, O‘ahu, Hawaii, on July 6, 2025. Mandatory evacuations were ordered, with fire crews reporting 75 % containment by 19:30 local time (LT).
At least 51 people died and 27 remain missing from Camp Mystic after major flooding affected Kerr, Travis, Burnet, and Kendall counties in central Texas between July 3 and 6, 2025. The floods were caused by extreme rainfall brought by the remnants of Tropical Storm Barry.
Tropical Storm Chantal formed as the third named storm of the 2025 Atlantic hurricane season on July 5, 2025. It is forecast to make landfall over South Carolina on the morning of July 6, which would make it the first storm of the season to make landfall over the U.S.
Lightning caused a premature fireworks detonation and injured three people during severe thunderstorms affecting central and west Florida on July 4, 2025.
