A flash flood swept away an entire hamlet in northern Vietnam, killing 30 people and leaving dozens missing as deaths from Typhoon Yagi and its aftermath climbed to 155.

Climate change is making powerful hurricanes more common. That may require adding a new official designation for the more intense storms, a new study suggests.

Virtually Alaska's entire shoreline is under some form of alert. Flood and storm warnings cover the west, and craft advisories cover both the Gulf of Alaska and the coast of the North Slope.