Officials are keeping an eye on water levels as heavy rains have pummeled Northeastern Wisconsin over the last two days.

There was no flooding in the Green Bay area, but National Weather Service officials said they were watching the situation carefully, particularly Duck Creek in Howard. A flood warning was issued for the Oconto River in Oconto County, where river levels were at 9.1 feet, slightly above the flood stage of 9 feet.

With heavy rains on Friday, the Branch River in the town of Morrison went over its banks, flooding low-lying areas.

The National Weather Service issued flood warnings for the Fox River at Berlin and the Sheboygan River in Sheboygan. Minor flooding was expected as the river rises to a peak of 8.3 feet by this morning. Flood stage is 8 feet. The river is expected to recede to 7.8 feet by Sunday morning.

Meanwhile, schools closed, thousands lost electricity because of trees toppling onto power lines and snow plows were back at work Friday as blizzard-like conditions shut down far northern Wisconsin, authorities said.

Wind and freezing rain downed trees and utility lines Thursday night and Friday morning, cutting power to 13,000 customers in northern Wisconsin and lakeshore counties.

Wisconsin Public Service had 50 crews working through the night, said spokesman Todd Steffen.

Most customers were back on by 6 a.m., though there still were scattered outages.

WPS has 400,000 customers in 19 counties. Most outages were in northern Wisconsin north of Wisconsin 29 in a line from Wausau to Marinette.

Outages also were reported in the Nicolet Drive area of Green Bay, Allouez, Sturgeon Bay and Kewaunee.

In Allouez, downed trees forced the closure of Beaupre Street at 9 p.m. for about three hours so crews could work on power lines in the Webster Heights area.

The outages were common in northwoods areas where wind, rain and sleet hit older trees and power lines.

The National Weather Service issued a blizzard warning for Douglas, Bayfield and Ashland counties.

About 2 inches of snow are expected today in the Green Bay area most coming before 1 p.m. A high near 37 is expected.

Sunday should be partly sunny, with a high near 41.