An 8-year-old girl and her father are safe after a swift water rescue in a wash on Tucson's southeast side. 

The girl and her dad entered the wash when it was dry but became trapped in a flash flood caused by a downpour Sunday evening, according to the Tucson Fire Department.

The pair sought safety by climbing a tree. 

The National Weather Service has issued a flash flood warning for Tucson in effect until 11:15 p.m. A separate flash flood warning is effect for Green Valley. 

A severe thunderstorm warning has also been issued until 6:30 p.m. 

About 6,000 Tucson Electric Power customers are without power. 

People are advised to avoid areas prone to flooding.

The National Weather Service reports that scattered showers and thunderstorms are dropping rain across eastern Pima County from Catalina, through Tucson and to Vail. 

A car was stalled in deep water on Golf Links Road just east of Craycroft Road Sunday evening. 

An earlier flood warning said excessive runoff from rainfall will cause elevated levels in washes and streams and ponding of water in urban areas including highways, streets, underpasses, low-lying areas and places with poor drainage, according to the NWS. 

Strong thunderstorms are dropping pea-sized hail and producing winds above 50 miles per hour near Catalina, according to the National Weather Service. 

Heavy rain and lighting are also being reported in the area. 

The NWS issued a significant weather event advisory for southern Pinal and northeastern Pima County in effect until around 5 p.m. 

The storm is moving northwest at 15 miles per hour. 

Thunder, lightning, heavy winds and rain are being reported across the city.

About 4,000 TEP customers are without power on Tucson's southeast side including areas near Golf Links and Pantano roads and Houghton and Irvington roads. 

An additional 2,000 customers are without power southeast of Tucson Medical Center.