DES MOINES, Iowa -- A line of heavy thunderstorms swept across central Iowa early Sunday morning, accompanied by high winds and heavy rain.

There are numerous reports of trees and power lines down in the Des Moines area and outlying communities. Wind gusts of 60 to 70 miles per hour accompanied the storm as it moved through Des Moines around three o'clock Sunday morning.Several large trees fell in the 1800 block of 74th street in Windsor Heights, blocking the street.

Wide-spread power outage Power is out in a number of areas. Mid-American Energy reports 38,000 customers without power in the Des Moines area at 6:30 a.m. Sunday. About 22,000 of those are in Des Moines. Another 300 are without power in Ankeny, about 6,000 in Urbandale, 2,300 in West Des Moines and 1,200 are without power in Johnston.Mid-American Energy spokesman Mark Reinders estimates it could take 36 hours to restore power to all affected customers in the Des Moines area. Reinders says the utility will bring in work crews from outside the metro area to assist in restoring electrical service to everyone by noon on Monday.Reinders says the damage is widespread and that as homeowners wake up Sunday morning and see downed power lines, they should "assume the wire is live" and call 911 or Mid-American to report the downed line.Central Iowa firefighters are out in force Sunday morning responding to reports of power lines igniting fires. Traffic lights are out at a number of locations in Des Moines.

Damage in Ames The damage extended to the Ames area, too. KCCI photojournalist Duane Wright reports large trees down across Ames and large branches that have fallen. Wright says it's hard to drive very far before running across a blocked street. An endloader was being used to clear blocked streets in Ames. Wright says he saw several cars parked in streets that had large trees on top of them. He says as Ames residents wake up Sunday morning, they're going to have quite a surprise as they survey the damage.A flash flood warning is in effect for Polk, Dallas, Madison and Warren counties in central Iowa due to the heavy rain flooding streets. The National Weather Service says both Walnut Creek and Four Mile Creek will rise rapidly due to urban runoff but both creeks are expected to crest below flood stage and fall quickly.Several other storm damage reports that have come in to KCCI: A viewer says the bubble golf dome near Grimes partially collapsed in Sunday's storm. The National Weather Service says Ankeny police reported a canopy over gas pumps at a Casey's in Ankeny was blown down.