Karnataka saw the highest pre-monsoon rainfall in 125 years during May 2025, with 219 mm (8.62 inches) of rain–nearly three times the monthly average–causing widespread damage and the loss of 71 lives, according to the state government.
Flash floods in Mokwa, Niger State, central Nigeria, have killed at least 150 people and displaced over 3 000, with rescue operations ongoing. Torrential rains and a dam collapse from May 28 to 29 caused widespread destruction in the commercial hub.
A strong, long-duration solar flare registered as M8.1 erupted from Active Region 4100 at 00:05 UTC on May 31, 2025. The flare began at 23:31 UTC on May 30 and ended at 01:32 UTC on May 31. The eruption produced a significant coronal mass ejection (CME). Model forecasts indicate that the CME is Earth-directed and is expected to arrive on June 1.
A plume of Saharan dust stretching from the coast of Africa to the northwestern Caribbean and into the Gulf of Mexico is forecast to reach Florida by Saturday, May 31, 2025. Southern and central parts of the state are expected to experience hazy skies and reduced air quality over the weekend. A denser plume could arrive by mid-next week, with the dust reaching Texas by Tuesday, June 3.
A massive landslide triggered by the collapse of the Birch Glacier destroyed the village of Blatten, Switzerland, on Wednesday, May 28, 2025. One person has been reported missing, and many houses were completely flattened.
A rare and exceptionally powerful lightning strike, known as a superbolt, struck Tulsa, Oklahoma, on May 25, 2025, causing structural damage and shaking nearby homes with an electrical discharge estimated between 228 000 and 280 000 amps.
Giant hail measuring up to 15 cm (6 inches) struck Afton, Texas, on Sunday, May 25, 2025, as storms swept across the southern U.S. during Memorial Day weekend. The storms were accompanied by multiple tornadoes, with at least five reported in Texas, including one near Afton.
A rare tornado struck the southern Chilean city of Puerto Varas at approximately 15:30 LT on Sunday, May 25, 2025. The tornado caused significant damage to homes, vehicles, and infrastructure, left eight people injured, and thousands without power.
Severe storms swept across Oklahoma on Saturday, May 24, 2025, causing widespread damage and producing a likely tornado near Asher. The system is forecast to continue affecting Oklahoma and much of the southern United States, bringing flash floods and thunderstorms through the Memorial Day weekend.
A major solar flare measuring X1.1 erupted at 01:52 UTC on May 25, 2025, from Active Region 4098 located in the southwest quadrant. The event began at 01:46 UTC and ended at 01:57 UTC. Multiple associated radio bursts were detected between 01:48 and 01:53 UTC.
