Storm cleanup starts in southern Manitoba

Homeowners, public works crews and emergency responders in southern Manitobaare beginning a major cleanup aftersevere thunderstormspounded the region over the weekend.

Environment Canada said 53 millimetres of rain fell on Winnipeg on Saturday and severalmajor streets remain closed because of flooding.

The towns of Portage la Prairie and Emerson each recorded record amounts of rainfall, a spokesperson for the weather agency said. Emerson has declared a state of emergency because of the damage done to property in the community.

A further five to 10 millimetres of rain is expected in Winnipeg onSunday.

Northbound Lagimodiere Boulevard at Warman Road isclosed and the Jubilee Street underpass at Pembina Highway is flooded.

Winnipeg policewere alsocalled toBishop Grandin Boulevard at Pembina Highway due to high water levels at the underpass, and theyreported that some streets around the Maginot Arena in St. Boniface were flooded out.

Officersalso reportedtraffic problems at Bishop Grandin and Waverley Street.

Const. Natalie Aitken said traffic lights were out at a number of intersections andwas cautioning motorists to stay off the roads if possible.

"It appears it is getting actually worse out there," Aitken said. "I realize the rain is not coming down as heavy as it was, but a lot of roads are completely impassable and people are still trying to go through them."

A police car was stuck in Transcona while responding to a call from a motorist stranded because of the water, Aitken said.

Sewer backup feared

Provincial flood officials are keeping a close eye on water levels on major rivers and will soon have to decide whether to open the gates of the Red River Floodway to protect Winnipeg homes from flooding.

The city said there have been no widespread reports of sewers backing up into people's basements. Instead, water is making its way into homes through foundations.

High river levels in Winnipeg impair the city sewer system's ability to operate at a normal capacity. That means there is an increased risk of basement flooding as the overloaded system backs up through household sewer lines that aren't protected by sump pumps and backwater valves.

Provincial officials issued a flood watchFriday.

"We kind of have to do a benefit-cost analysis," said provincial flood forecaster Alf Warkentin. "We don't just operate the floodway just at a whim."

The province has decided to operate the Portage Diversion to reduce the flowin the Assiniboine River. The diversion redirects some of the water in the Assiniboine to a 29-kilometre-long diversion channel that empties into Lake Manitoba.

In southwest Manitoba, felled power lines and direct lightning strikes on power equipment left about 4,000 homes and businesses in the dark on Saturday.

Areas in and around Brandon, Portage la Prairie, Reston, Melita, Pipestone and Hartney were affected bythe severe weather.