MILWAUKEE (AP) — An 11-year-old boy nearly drowned in a waterlogged Wisconsin drainage ditch before an eagle-eyed firefighter pulled him to safety after another round of storms pounded the southern half of the state.

The Calumet County Sheriff's Office said the boy was playing with friends in a flooded drainage ditch after the rains passed around 6 p.m. Tuesday in the Village of Harrison. He disappeared under the water and didn't surface.

A dive team, sheriff's deputies and others searched the ditch and a storm sewer. The boy managed to find an air pocket and was rescued after a firefighter some 30 feet (9 meters) away saw his finger poking through a manhole cover. The boy was taken to the hospital, and authorities said he was alert and conscious after his ordeal.

A string of storms began moving through the region last week, flooding streets and farm fields and cutting power. One man was killed in Madison as he tried to escape from a flooded ditch last week.

State emergency officials said 20 counties have been affected by flooding over the last 10 days. Gov. Scott Walker has declared a state of emergency in seven counties so far.

Hardest hit has been Wisconsin's southwestern corner. Up to 11 inches (28 centimeters) fell in the region Monday into Tuesday, forcing evacuations in La Crosse, Vernon and Monroe counties.

The area got another 1.3 inches of rain on Tuesday. The deluge stranded two Amtrak trains carrying about 400 passengers for hours because of flooding over the tracks. One train bound for Chicago was forced to stop near Tomah in western Wisconsin; another bound for St. Paul had to stop near Portage in south-central Wisconsin.

The trains sat on the tracks overnight. Amtrak spokesman Marc Magliari said passengers were given complementary food and water and the trains are designed to accommodate passengers overnight. He said the trains are expected to get underway again Wednesday.

Parts of Interstate 90/94 were closed overnight due to standing water on the pavement and highways across southern Wisconsin have been rendered impassable. Emergency officials in Madison were still grappling with flooded streets on Wednesday morning and warned commuters to expect delays for days.

Several tornadoes were spotted Tuesday afternoon in Campbellsport, Lomira, Oakfield and Brandon, Wisconsin, according to the National Weather Service. The service has not confirmed that tornadoes hit in any of these locations. Possible tornadoes also demolished two barns in Fond du Lac County, killing about 100 cattle, Wisconsin Emergency Management spokeswoman Lori Getter said.

Some 12,000 We Energies customers were still without power Wednesday morning as utility crews worked overtime to restore service.

Southeastern Minnesota has also been struggling with flooding over the last few days. Tuesday night's storms largely missed that area, passing to the south, although some spots got hit hard.

Houston County officials, for example, reported 7 inches of rain and had to evacuate a campground and a tornado came down in Goodhue County, Minnesota Emergency Management spokesowman Amber Schindeldecker said. No evacuations have been reported to the state, she said.

Forecasts called for drier weather Wednesday and Thursday. More rain was expected Friday and Saturday.