Manitoba's flood forecasters are keeping an eye on a spring storm that the province says could dump 30 to 80 centimetres of snow on southern Manitoba in the next week. In a Saturday flood bulletin, the province said the system may result in a mix of snow and rain between Tuesday and Friday. Temperatures are forecast to drop to below freezing by Wednesday and remain below freezing until April 19 in most locations, the province said. Runoff from the forecast precipitation is not expected to start before April 20, according to the bulletin.