Historic rainfall affected much of Yucatán on May 29, 2026, with Mérida setting a new all-time May rainfall record after 154 mm (6.1 inches) fell in 24 hours. Floodwaters inundated roads, stranded hundreds of vehicles, and caused significant disruptions across the city and surrounding areas.
A storm system moving from the Great Basin into the Northern Rockies is expected to bring widespread rain, flooding concerns, and severe thunderstorms across multiple U.S. regions through June 1, 2026. The highest rainfall threat is forecast across portions of Montana on May 30, 2026, while severe storms capable of producing damaging winds and large hail are expected across parts of Nebraska and South Dakota.
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.
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.
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.
A Slight Risk area for excessive rainfall remains in effect across southeast Texas, the central Gulf Coast, and parts of the Ohio Valley into the central Appalachians where slow-moving thunderstorms may produce flash flooding over saturated ground through May 27. Deep Gulf moisture and a slow-moving weather pattern are forecast to fuel multiple rounds of heavy rain from southeast Texas to the central Appalachians, increasing the risk of flash flooding in vulnerable areas through late week
A woman was killed after her SUV was swept away by floodwaters in Petal, Mississippi, as severe storms triggered widespread flooding across Forrest and Lamar counties on May 25, 2026. Up to 152 mm (6 inches) of rain fell over parts of southern Mississippi, with floodwaters rising up to 3.7 m (12 feet) in Petal at the storm’s peak.
The National Weather Service (NWS) warned that repeated thunderstorms capable of producing torrential rainfall may trigger flash flooding across parts of the Southeast and Gulf Coast this week, starting on May 25, 2026.
The Northern Tornadoes Project confirmed Saskatchewan’s first tornado of 2026 after an EF0 landspout touched down near Disley, west of Regina, on May 22, while additional surveys in Ontario and Alberta raised Canada’s confirmed tornado count to 11 this year.
At least 28 people were reported dead while 10 others were injured as floods triggered by severe storms swept across 17 provinces of Afghanistan between May 21 and 23, 2026. Over 100 families were displaced as the flooding and other disasters destroyed homes and farms across the country.
