What you need to know about this weekend's storm

The power outage that affected about 10,000 customers in London's Old South neighbourhood is over, according to London Hydro spokesperson Nancy Hutton.

Hutton said the outage originated on South Street with some tree limbs that came down on top of power lines.

122 customers in different pockets of the city are still affected by outages, Hutton said. She said crews are working to restore power as quickly as possible, but that rain in the forecast could cause more outages throughout the night.

The area from Grand Bend to past Woodstockis still seeing outages, with more than 14,000 customers affected. According to the Hydro One outage map, the estimated restoration time for much of this area is 8:00 p.m.

Elgin County had power outages earlier but it is now back on in most areas. Some outstanding areas are expected to have power restored at 11:30 p.m.

Transportation

• Southern Ontario braces for long night of freezing rain, rain and high winds

At the airport, flights in and out of London were cancelled for most of the weekend, but London airport spokesperson Gerry Vanderhoek said the airport will try to begin operations again through Sunday night and Monday.

Vanderhoek said between 1,500 and 2,000 people have been rebooked on Monday flights due to this weekend's cancellations.

"We're hoping that airlines give us a little bit bigger airplanes so we can clean up the backlog over the course of the day," said Vanderhoek. "Sometimes they even add extra flights, but with the chaos at Toronto Pearson it's going to take some time for them tocome up with a solid plan."

Passengers can check their flight status at flylondon.ca.

On Sunday, Ontario Provincial Police adviseddrivers to stay off the roads.

Sgt. Dave Rektor saidthe 401 was closed most of Sundaymorning 'due to transport trucksjackknifing.'

Freezing rain warning over; rainfall warning in effect

Environment Canada had warned of a "potentially historic ice storm" for thisweekend.

London's freezing rain warning ended at 3:30 p.m. Sunday. A rainfall warning is still in effect.

"Following some morning freezing rain, a round of significant rainfall is expected this afternoon into this evening. The rain may fall heavily at times with amounts likely in the 20 to 30 mm range," said Environment Canada."Some additional rainfall is likely overnight into Monday, albeit lighter."

• Latest weather statement for London and area from Environment Canada
• Follow CBC Live Blog on conditions across Southern Ontario

Environment Canada is warning people to keep pets and children away from riverbanks.

Water levels

The Upper Thames River Conservation Authority says water levels are expected to rise throughout the weekend and peak on Monday, but are not expected to reach the levels seen during February's flood.

• Flooding in Southwestern Ontario, pictures and video

Spokesperson Teresa Hollingsworth says freezing rain will make for particularly slippery river banks.

"It'sjust a safety message to stay away from any water courses," she said.

OPP isreporting minor flooding and evacuations near Kingsville, Ont.