People living along the Assiniboine River just west of Winnipeg have been told the river could swell half a metre above where it was three years ago.
The 2011 flood was one of Manitoba's worst as army reservists scrambled to help shore up weakened dikes and sandbag homes along the river.
Robert Poirier (POHR'-ee-ay) of St. Francois Xavier municipality west of Winnipeg says people who live along the river were told after that disaster to put in permanent flood protection.
But he says he doesn't know how many people took that advice.
Unlike 2011, Poirier says they haven't been sandbagging for months and aren't prepared for a flood-fight this late in the year.