A Severe Weather Warning remains in effect across a large part of Western Australia as an unusually deep low-pressure system approaches the southwest coast, bringing the threat of damaging to destructive wind gusts, severe thunderstorms, heavy rainfall, isolated tornadoes and very large waves through Monday.
New activity/unrest was reported for 4 volcanoes from May 21-27, 2026. During the same period, ongoing activity was reported for 18 volcanoes.
Portugal set a new national May temperature record on May 27, 2026, after Mora reached 40.3°C (104.5°F) during an early-season heatwave, according to the Portuguese Institute for Sea and Atmosphere (IPMA). The reading surpassed the previous May extreme of 40°C (104°F), recorded at Pinhão on May 30, 1953, and matched at Termas de Monfortinho on May 30 and 31, 2001.
A 64-year-old woman died after being swept away by floodwaters near her home in Cocke County, Tennessee, on May 28, as 76 to 127 mm (3 to 5 inches) of rain triggered flooding and multiple rescue operations across the county.
Residents across the South Carolina Midlands reported a loud boom and brief shaking late Thursday afternoon, May 28, 2026. The U.S. Geological Survey (USGS) later logged the event as an ‘M0.0 sonic boom’ near Saint Andrews, South Carolina.
France recorded its hottest May day since records began on May 26, 2026, while temperatures climbed to 37.8 °C in southwestern parts of the country on May 28. Multiple stations across France set new all-time May temperature records this week as a prolonged heat dome pushed daytime temperatures into the upper 30s°C (upper 90s°F) and kept nighttime temperatures unusually high across much of the country.
A submarine eruption that began on May 8, 2026, continues in the central Bismarck Sea, about 130 km (81 miles) southeast of Manus Island, Papua New Guinea. The eruption revealed a previously unmapped underwater volcano, now provisionally named Titan Ridge Volcano, in a remote and tectonically active area of the Pacific Ocean.
Eleven people have died after getting into difficulty in open water across the UK during a record late-May heat episode. The fatalities include nine children and two adults. The Met Office said 35.1°C (95.2°F) at Kew Gardens on May 26 provisionally broke the UK May and spring temperature record for the second consecutive day.
NOAA and long-range atmospheric forecast models are increasingly showing early El Niño-related circulation signals over North America as forecasters continue monitoring a developing transition away from ENSO-neutral conditions during summer 2026.
Tropical Storm Jangmi was located 1 245 km (774 miles) east of southeastern Luzon at 17:00 LT (09:00 UTC) on May 28, 2026 with PAGASA and JTWC forecasting continued intensification over the Philippine Sea during the next several days.
