High water on the Noatak River is accelerating erosion and causing the destruction of a decades-old cement pillow revetment wall in Noatak.

Residents in Old Crow, Yukon were evacuated to a local school early on May 24 after Porcupine River levels rose sharply, but returned home later the same day as flood risk diminished under an ongoing evacuation alert.

Up to 1,000 gallons of water used in mining operations reached a creek and tundra, as an estimated 400,000 gallons spilled into containment areas and a gravel road.

A large ice run jammed on the Kuskokwim River below Aniak on May 1, prompting flood advisories for Aniak and Kalskag, though relief channels kept water below flood levels.