Heavy snowfall affected southeastern Australia on August 29 and 30, 2025, with 82 cm (32 inches) measured at Mount Buller, Victoria, and 40 cm (16 inches) in New South Wales resorts. Strong winds up to 130 km/h (81 mph) caused damage and power outages. The blizzard also hampered the search of double murder accused in Porepunkah, Victoria.
An explosive eruption occurred at Santa María volcano, Guatemala, at around 06:40 UTC on August 29, 2025, producing an ash plume that reached 4.2 km (14 000 feet) above sea level — approximately 500 m (1 640 feet) above the summit.
Severe thunderstorms swept across northwest Arkansas on August 28, 2025, causing over a dozen crashes along the I-49 near Fayetteville and two crashes in the River Valley.
Shinmoedake volcano, part of the Kirishimayama complex in Japan, erupted on August 27, 2025, producing an ash plume rising to 7 km (23 000 feet) a.s.l., which drifted south at 19 km/h (12 mph).
Flood watches are in effect across parts of Kansas, Missouri, Oklahoma, and Arkansas on August 28, 2025, as widespread storms raise the threat of excessive rainfall and localized flooding in the south-central Plains and Lower Mississippi Valley.
New activity/unrest was reported for 6 volcanoes from August 20 to 26, 2025. During the same period, ongoing activity was reported for 18 volcanoes.
Snowfall was recorded in Poland’s High Tatras mountains on August 24, 2025, for the first time in August since 2010, as temperatures dropped to -3°C (26.6°F) at the summit of Kasprowy Wierch. The event was driven by an Arctic air mass that moved across Poland over the weekend.
More than a dozen roads in Imperial County, California were shut down on August 26, 2025, after severe monsoonal storms triggered flash floods, road erosion, and power outages across the region.
A massive landslide struck the Balipara-Chariduar-Tawang (BCT) highway near Sapper Camp in West Kameng district, Arunachal Pradesh, India, on August 25, 2025, damaging vehicles and blocking traffic.
A significant increase in water temperature and sulfur gas emissions was detected at Kawah II of Mount Kelimutu, East Nusa Tenggara, Indonesia, on August 26, 2025. The volcano is a well-known tourist destination due to its three color-shifting crater lakes. The last recorded eruption at this volcano took place in 1968 (VEI 1).
