People in western Manitoba are mopping up, and Environment Canada is investigating a possible tornado after a large storm system hit the area throughout the day on Sunday.

Environment Canada says golf ball-sized hail was reported between Oakburn and Shoal Lake in the afternoon. Shoal Lake Airport recorded 61 mm of rain. However, weather spotters in the town recorded 94 mm.

In Brandon not only were streets flooded, but residents reported flooding in several stores including Walmart and the Shopper's Mall. Brandon received 155.5 mm of rain.

Environment Canada says they are also investigating a possible tornado in Rapid City. A home in that area suffered severe damage, but it's believed nobody was home at the time.

Flood watch issued

Manitoba Infrastructure's Hydrologic Forecast Centre is issuing a flood watch and high-water advisory for the province's southwestern, western and central regions.

The centre says a weather system may release 75 to 100 millimetres of rain in those areas in the next few days.

Areas in the southwest of Manitoba, including Virden and Brandon, could see up to 175 millimetres of rain during this time.

Property owners are advised to take precautions but most major rivers, including the Assiniboine and Souris rivers, are expected to remain within their banks at most locations.

Highways closed

Several highways were closed Sunday evening and early Monday as a result of flooding and washouts on roads.

  • Highway 1A is closed at Kemnay due to a washout.
  • Highway 16 and 10 are closed in the Minnedosa area. Highway 16 is closed from the north junction at Minnedosa to the south junction. Highway 10 is closed from Minnedosa to Highway 45.
  • Highway 24 is closed from Rapid City to Highway 250.
  • Highway 270 is closed 3 km south of Rapid City.