Garrett Neese/Daily Mining Gazette Common spring flooding sites such as the Sturgeon River may experience minor flooding this week as high temperature bring a spring melt.

HOUGHTON — As spring finally gets underway in the Upper Peninsula, the warming temperatures this week could lead to some minor flooding.

A warm airmass coming through the upper Great Lakes this week will bring temperatures 20 to 30 degrees above normal for this time of year, the National Weather Service said.

Temperatures are not expected to fall below freezing overnight this week, increasing the chances of flooding in some of the most common spots.

Aside from southern Menominee and southern Delta counties, most of the U.P. has a sizable snowpack remaining, said meteorologist Lily Chapman. That snow also has a high water content.

“We’re breathing a sigh of relief that at least we’re not looking to get precipitation with this,” she said. “Otherwise that would be problematic:”

Any precipitation will come near the start of next week. Snow is possible, but the majority will likely come in rain, Chapman said.

The snowmelt will be enough to cause rapid rises in some streams and rivers.

“That could lead to some localized flooding concerns, some of our trickier spots that are notorious for spring flood,” Chapman said.

Chapman said people in those areas that frequently flood should take usual precautions. She also warned people not to drive through water.

“You don’t always know what’s underneath,” she said. “It could be flowing, and you could get swept away.”