A blizzard warning has been issued for Regina and other parts of eastern Saskatchewan.

Environment Canada says blizzard conditions will develop late Monday morning in Regina and spread northward throughout the day.

A snowfall warning that was issued for several areas of the region has been upgraded to a blizzard warning as an intense low-pressure system moves into the province from Montana.

The system will bring heavy snow and northwesterly wind gusts of up to 90 kilometres an hour, reducing visibilities to near zero at times.

Travel is expected to be extremely hazardous due to the reduced visibility and road closures are possible, the weather agency said. People are advised to avoid outdoor activities.

Conditions are expected to deteriorate throughout the day as winds increase, and blizzard conditions will likely persist into Tuesday as strong winds continue. The weather should improve Tuesday night as the winds begin to diminish.

Winter storm and snowfall warnings are also in effect for some parts of eastern Saskatchewan, while Saskatoon and several areas north and south of the city, including Prince Albert and Moose Jaw, are under blowing snow advisories.