A storm system that passed through northwest Iowa early Thursday brought winds of up to 100 mph — including a tornado - and left one person injured.

Significant damage to buildings was reported from strong winds in Maurice and Cherokee and from an F-1 tornado in Pocahontas.

The injured person was in bed in Maurice when a window shattered and caused minor cuts, said Nate Huizenga, the Sioux County emergency management coordinator. The injured person was treated at the scene.

No one was injured in Pocahontas or Cherokee.

The storm hit Maurice about 12:30 a.m. and destroyed one home and damaged up to 20 others.

Homes that were damaged had broken windows and roofs and siding that were blown away. Several homes also were damaged by falling trees, Huizenga said.

"There was little warning, and most people were in bed so it could have been a lot worse," he said.

In Cherokee, the squall line moved through about 1:20 a.m., causing damage to buildings and trees there. No injuries were immediately reported.

Powerful winds continued, snapping power poles and knocking down trees near Peterson, according to the National Weather Service.

In Pocahontas, a tornado lifted the roof and ceiling off a co-op and carried machinery and carts from a nearby sale barn. The tornado, which touched down around 2:40 a.m., also damaged the walls of the sale barn and uprooted large trees in a cemetery as it cut a 2.6-mile path through town.

The system that crossed the state early Thursday dropped 5 inches of rain west of Fort Dodge, causing standing water and flooded basements. Fort Dodge and Webster City received about 3½ inches.

Flooding temporarily closed U.S. Highway 169 in Fort Dodge, but it was opened again later.

Southern Iowa, which has been battered by recent rains, received a quarter-inch overnight, and that was in a small area, said Jacob Beitlich, a meteorologist with the National Weather Service.

"They needed a break," Beitlich said.

The flood warning for the Chariton River near Moulton was canceled.

Moulton is downstream from Rathbun Lake, which moved up 3 inches to 926.6 feet above sea level overnight — not enough to push water out the other end of the emergency spillway.

Officials do not expect the level at Rathbun Lake to go much higher.

Creeks and streams flooded in sections of northern Iowa on Thursday but one hard rain in the Des Moines River basin is not enough to bring Saylorville Lake back to threatening levels, Beitlich said.

Scattered thunderstorms were expected across central Iowa overnight Thursday, with severe weather and heavy rainfall possible by daybreak.