More than 5,300 South Hill homes without electricity Tuesday evening

Power outages on the South Hill left more than 5,300 homes without electricity Tuesday evening.

The outages were first reported at about 6:30 p.m., Avista spokesperson Kim Vollan said. Temperatures were more than 90 degrees as of 7:30 p.m.

Crews were still determining the cause of the outages at that time, Vollan said.

Avista estimated it would restore power to 2,420 homes south of the Glenrose area by 9:30 p.m. Vollan estimated power at the 2,835 homes closer to Lincoln Heights would be back on around 10:30 p.m.

Spokane and much of Eastern Washington were under a Red Flag warning starting at 6 p.m. and lasting until 5 a.m. Wednesday due to expected thunderstorms and 40 mph gusts of wind.

Spokane County Fire District 8 firefighters responded at about 7 p.m. to a scene at 6218 E. 37th Ave. where wind broke tree limbs over a power line. Avista Utilities crews were en route, according to a tweet from the Fire District 8 union. Vollan said this was not the cause of the major outages on the South Hill.

This story is developing and will be updated.