PHOENIX — Parts of Arizona are expected to be hit with scattered severe storms this weekend, with possible flooding thanks to moisture from Tropical Storm Ivo in the Pacific, forecasters said.
The state should see storms around Saturday afternoon with periods of heavy rain.
The National Weather Service has issued a flash-flood watch for much of Arizona on Sunday because of the severe storms. The flash-flood watch runs from 5 a.m. to 11 p.m. Sunday and includes all of Yavapai County, as well as the entire northwest quadrant of the state. The region could see a couple of inches of rain by Monday, with heavier amounts in localized areas, said Megan Schwitzer of the National Weather Service office in Flagstaff.
A tropical storm warning remains in effect for the Pacific coast of the peninsula from Punta Abreojos to Cabo San Lucas, and for the Gulf of California coast of the peninsula from Loreto to Cabo San Lucas. A tropical storm watch is in effect for the Pacific coast of Baja California north of Punta Abreojos to Punta Eugenia.
"The position (of Ivo) is favorable for a surge up the Gulf of California and up through the Colorado River Valley," Schwitzer said.
In southern Arizona, the heaviest rain is expected to stay west of Tucson. The Yuma area, for example, is expected to see rainfall and thunderstorms through Monday as Ivo moves upward through Southeastern California and Southwestern Arizona, said Ken Clark, Accuweather.com expert senior meteorologist.
"While we do not, and I stress this — do not, expect a tropical storm in Yuma, we do expect a lot of tropical moisture to come northward," Clark said.
The Weather Service is warning people who live near the Doce and Yarnell Hill wildfire burn areas in the Prescott and Yarnell regions to be especially watchful for potential flash-flooding. Yarnell already has experienced at least one incident of localized flooding, Schwitzer said.
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