The World Meteorological Organization confirmed a new lightning flash record spanning 829 km (515 miles) across the Great Plains, United States, observed on October 22, 2017.
Flash floods struck parts of the northeastern United States on July 31, 2025, killing one person in Maryland and prompting state emergencies in New York and New Jersey.
Flash flooding caused by intense monsoonal thunderstorms impacted burn-scarred areas in and around Ruidoso, New Mexico, on July 30, 2025, triggering water rescues, overtopping roads, and damaging property.
Heavy to excessive rainfall and severe thunderstorms are expected across parts of the Mid-Atlantic and the Northeast on July 31, 2025, as a slow-moving cold front interacts with favorable upper jet dynamics and anomalous moisture.
Typhoon Co-may made a double landfall in China’s Zhejiang and Shanghai on July 30, 2025, bringing record rainfall and severe flooding that forced over 282 000 to relocate.
New activity/unrest was reported for 4 volcanoes from July 23 to 29, 2025. During the same period, ongoing activity was reported for 19 volcanoes.
A cloudburst triggered a destructive flash flood in Mandi, Himachal Pradesh, early on July 29, 2025, killing three people from the same family and leaving one missing.
An extratropical cyclone impacted Rio Grande do Sul, Brazil, between July 28 and 29, 2025, producing wind gusts over 100 km/h (62 mph) and waves reaching 3.5 m (11 feet), causing widespread structural damage, coastal flooding, and large-scale power outages.
Torrential rain combined with suspected dam water release caused severe flooding in Yola, Adamawa State, Nigeria, on July 27, 2025, leaving at least 25 people dead, 55 injured, and thousands displaced.
A tsunami generated by the M8.8 earthquake off Russia’s Kamchatka Peninsula on July 29, 2025, produced waves of up to 1.7 m (5.7 ft) across parts of Hawaii, prompting evacuations, port closures, and widespread coastal alerts. No significant damage or casualties have been reported.
