More rain and snow could hit Arizona on Thursday as another system speeds across the state, but the effects of earlier storms could linger into next week as water flows into usually dry creeks and rivers.
The National Weather Service has posted a flood warning for the Tonto Creek and Tonto Basin areas northeast of Phoenix as water levels in the creek surged with runoff from rain and upstream snowmelt. Officials cautioned people not to cross flooded areas, especially where there is no bridge.
A winter storm warning was extended through Thursday in the high country around Flagstaff, the weather service said, as chances for additional snow remained. The weather service said the snow could hamper travel in many areas.
The Arizona Department of Transportation closed several stretches of Interstate 40 and other mountain-area roadways on Wednesday, and though some had reopened by the end of the day, others were still closed. The agency urged motorists to check conditions before heading out on the roads.