At least 25 people are confirmed dead or missing after floods and landslides struck Bali and East Nusa Tenggara, Indonesia, between September 9 and 11, 2025. Torrential rains inundated large areas, collapsed buildings, and forced the evacuation of more than 500 residents.
A sudden stratospheric warming event is unfolding over Antarctica in early September 2025, rapidly weakening the southern polar vortex. Forecast models indicate potential downstream effects on the Northern Hemisphere jet stream, with implications for winter 2025/26 in the USA and Canada.
A lightning-sparked wildfire known as Garnet Fire entered the McKinley Grove of giant ancient sequoias in California’s Sierra National Forest on September 8, 2025. Firefighters reported ember ignition in upper branches but no complete canopy burn. Containment stands at about 15% after burning 22 000 ha (55 000 acres) since igniting on August 24.
At least six people were killed after torrential rains triggered severe flooding across Bali, Indonesia, between September 9 and 10, 2025. The floods inundated large parts of Denpasar, caused the collapse of multiple buildings, and left several people missing, while hundreds were evacuated to safer areas.
A powerful JEF3 tornado struck Makinohara and Yoshida in Japan’s Shizuoka Prefecture on September 5, 2025, injuring at least 89 and damaging over 1 300 structures in the region. The Japan Meteorological Agency (JMA) reported peak winds of around 270 km/h (168 mph), making it one of the strongest tornadoes on record in the country.
A fast-moving wildfire erupted in Lakeside, San Diego County, California at around 15:00 LT on September 8, 2025, burning 2.1 ha (5.3 acres), destroying six mobile homes, and injuring two people before firefighters contained it overnight.
A frontal boundary stretching from the Upper Midwest to the Northern Rockies is expected to stall through Thursday, September 11, 2025, producing showers, thunderstorms, and locally severe weather across the central U.S. Tropical moisture is forecast to fuel heavy rainfall in Florida over the same period, while Frost Advisories remain in effect across parts of the Northeast.
Continued rainfall over the weekend to caused part of parkway road to collapse north of New York, prompting the routes’ closure on September 8, 2025.
A shallow earthquake registered by the USGS as M5.8 hit off the coast of Oregon at 04:08 UTC on September 9, 2025. The agency is reporting a depth of 13.8 km (8.6 miles).
A strong and shallow earthquake registered by the USGS as M6.4 hit Vanuatu region at 21:47 UTC on September 8, 2025. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting the same magnitude and depth.
