The provincial test positivity rate now sits at 14.3 per cent.
"Our hospitals are being stretched to the limits right now", Roussin said. "We need to stay home as much as possible". More than 70 per cent of current hospitalized patients are unvaccinated.
Even those beds are filling up now and Manitoba has flown 18 critically ill COVID-19 patients to Ontario hospitals in the past few days, officials said. Public health said 12 admissions to ICU were made on Monday alone.
Ottawa helped Ontario with some health workers this spring as its hospitals hit new record patient levels, and helped co-ordinate and fund the deployment of teams of doctors and nurses from Newfoundland and Labrador to fly to help hospitals in the Greater Toronto Area. More patents were tentatively scheduled for transfers on Tuesday.
There were 126 Manitobans total in ICUs across the province as of Tuesday.
The extension of the long-weekend public health orders means gatherings of any kind outside of households are prohibited, from private gatherings to anything outside, including recreational activities such as golf.
Another rule that requires only one person per household to enter a store or other public business will also remain in effect.
"Manitoba has implemented some of the strictest public health and enforcement measures in the country for months now in order to protect Manitobans" lives and livelihoods.
"This is going to continue to elongate the third wave if those behaviours continue".
Quebec recorded its lowest number of new cases Tuesday since September, confirming 346 new COVID-19 cases.
Two more Manitobans were reported to have deaths linked to the virus, a man in his 30 from Winnipeg and a woman in her 80s from Southern Health-Santé Sud.
Cases of variants of concern total 8,597 in Manitoba, with 2,965 of them active. Testing totals 749,515 since the pandemic began.