LATEST: Winter storm watch in Mississauga, Brampton, Hamilton, Burlington, Oakville and Milton

A significant winter storm with dangerous travel conditions is expected tonight in Mississauga, Brampton, Hamilton, Burlington, Oakville and Milton.

According to Environment Canada, a winter storm warning is currently in effect.

Non-essential travel is strongly discouraged. It will start this evening and into Saturday morning.

Mississauga, Brampton and Milton:
Significantly reduced visibility due to heavy snow and blowing snow.
Total snowfall accumulations of 20 to 30 cm.
Snowfall rates of 5 to 8 cm/h are possible.

The most dangerous conditions are expected between about 9 P.M. and midnight when snowfall rates maybe 5 to 8 cm/h.

Hamilton:
Significantly reduced visibility due to heavy snow and blowing snow.
Total snowfall accumulations of 15 to 25 cm.
Snowfall rates of 4 to 6 cm/h possible.

The most dangerous conditions are expected this evening when snowfall rates may be 4 to 6 cm/h at times.

Burlington and Oakville:
Significantly reduced visibility due to heavy snow and blowing snow.
Total snowfall accumulations of 15 to 25 cm.
Snowfall rates of 4 to 6 cm/h possible.

The most dangerous conditions are expected this evening when snowfall rates may be 4 to 6 cm/h at times.

Rapidly accumulating snowfall creates hazardous travel conditions.
Isolated power outages due to the combination of heavy wet snow and wind

A Texas low is expected to bring heavy snow and strong winds to a large swath of southern Ontario. Snow will begin this evening and quickly become heavy at times.

Heavy snow in combination with strong easterly winds, will create significantly reduced visibility and hazardous travel conditions.

Surfaces such as highways, roads, walkways and parking lots may become difficult to navigate due to accumulating snow.

Prepare for quickly changing and deteriorating travel conditions. Visibility will be suddenly reduced to near zero at times in heavy snow and blowing snow.