Heat advisories are in effect across southern California from Friday to Saturday, May 9–10, 2025, with level 3 out of 4 HeatRisk issued for parts of the region due to the increased risk of heat-related illnesses.
At least five tornadoes touched down in central Texas on Tuesday, May 6, 2025, affecting Leon, Milam, Robertson, and Anderson counties. The storms caused widespread damage and one injury in Frankston as severe thunderstorms moved through the region.
Record rains drenched New Orleans on Wednesday, May 7, 2025, as severe storms brought flash floods and strong gusts to parts of Louisiana, causing widespread damage.
A powerful storm system drenched Southern Nevada on May 6, triggering flash flood warnings, airport delays, and a swift-water rescue in Henderson after a man was swept into a wash and disappeared. Rainfall totals shattered multiple records across the Las Vegas Valley, with Harry Reid International Airport logging the highest May rainfall in over five decades.
Wildfires burned over 2 500 ha (6 200 acres) across North Dakota’s Turtle Mountain and Fort Berthold reservations in early May 2025, threatening homes. Coordinated efforts by state, tribal, and federal agencies saved most structures, with only one abandoned trailer lost.
Severe thunderstorms swept across Texas on Monday and Tuesday, May 5–6, 2025, triggering flash floods and widespread damage across the state. In Brenham, a 10-year-old girl who went missing after being swept away by floodwaters on Monday was found deceased the following day.
Severe thunderstorm warnings and tornado watches have been issued for parts of Texas, including Dallas-Fort Worth, Austin, and Houston on Tuesday, May 6, 2025, as an omega block weather pattern drives widespread storms across the region.
Floodwaters swept away a 10-year-old girl in Brenham, Texas, as severe thunderstorms moved across the region on Monday, May 5, 2025. Lightning strikes set multiple structures on fire, including in Colleyville where a house was destroyed.
An omega block pattern over the United States is expected to bring prolonged rounds of thunderstorms and showers starting Monday, May 5, 2025, posing a multiday flooding threat primarily across the central and northeastern U.S.
A major earthquake along the Cascadia subduction zone would cause sudden coastal land subsidence, allowing seawater to penetrate farther inland. When combined with projected sea-level rise, this would substantially increase flood exposure in currently unaffected communities across northern California, Oregon, and Washington. Similar risks are present in other coastal regions located near active subduction zones worldwide.
