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GREEN BAY - Brown County and Oconto County residents were asked to monitor water levels until late Sunday night with flood warnings in effect. 

The National Weather Service posted the warnings Sunday morning. People in the area of Duck Creek in Howard and along the Suamico River were told to watch for rising water and be prepared to leave if necessary, according to the weather service. 

Northeast winds had been increasing since Saturday evening and caused water in the southeast part of the Bay of Green Bay to rise, said Jeff Last, warning coordination meteorologist at the National Weather Service in Green Bay. The warning included the area around the northern shore of Brown County and the southeast shore of Oconto County, he said. 

“This is preventing the normal flow of water from the Suamico River, Duck Creek and the Fox River to drain into the bay and that, along with run-off from the recent rain, has resulted in some of the flooding reports that we’ve seen,” Last said. 

The greatest impact in the area was in Little Suamico on the southeast shore of Oconto County, he said. The strong northeast winds caused water to "pile onto the shore" and pushed water into several backyards. 

Showers and scattered thunderstorms were expected to end by late Sunday afternoon and the winds were expected to switch to a north and northwest direction, Last said. The threat of flooding was expected to pass by late Sunday evening. 

Less than three-quarters of an inch of rain had fallen since Saturday, Last said. An additional quarter to a half an inch of rain was expected Sunday afternoon. 

Sunset Beach Road was closed Sunday morning at the Suamico boat launch, restricting access to Sunset Beach Lane, the Suamico Police Department said in a news release late Saturday night. 

Suamico residents were asked to avoid any bayshore roads, including Lineville Road, Longtail Beach Lane, Harbor Lights Lane, Hook Road and Brown Road. 

RELATED: Flooding cancels full marathon but doesn't dampen spirits at Cellcom Green Bay Marathon

Flooding should be reported to local law enforcement, according to the NWS release. 

National Weather Service flood warnings: 

  • North-central Brown County until 11:59 p.m. Sunday
  • Southern Oconto County until 7 p.m. Sunday 
  • Central Brown County until 9:45 p.m. Sunday

“Obviously, with the rainfall that happened over (Saturday) and what is forecasted (Sunday) … with this strong northeast breeze, it's kind of making for the perfect storm," said Jerad Preston, director Brown County Emergency Management. 

East River, Fox River and Suamico River in Suamico on Sunday were seeing issues with high water, Preston said. 

Anyone living in those areas and areas of Bellevue, Allouez, Ledgeview, Green Bay and Howard were asked to keep an eye on water levels and to have a plan to evacuate if necessary, he said.  

There are no mandatory evacuations in place, but the Red Cross has been alerted about the possibility, he said. 

There has not been any flooding over the roads, said Brown County Sheriff's Lt. John Bain. 

“We’re monitoring it, and that’s all we can really do for right now,” Bain said. 

Race canceled 

Flooding also forced the Cellcom Green Bay Marathon organizers to cancel the marathon, though the event's half marathon was not impacted.

Dr. Ashok Rai, president of the marathon's board of directors, said heavy rain, strong wind and high river levels left impassable water on parts of the race route. 

"It's not as simple as 'run around the water,'" Rai said. "It was a situation where public safety agencies felt we shouldn't take a risk. Some things are out of our control."

Jeff Bollier contributed to this report.

Contact Samantha Hernandez at (920) 431-8385 or svhernande@gannett.com. Follow her on Twitter at @svhernandez or Facebook at www.facebook.com/samanthahernandezreporter/.

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