As a Colorado Low that is expected to dump between 30 to 50 cm of snow nears the region, a winter storm warning has been issued.

A strong low-pressure system is expected to track over northwestern Ontario bringing a couple of days of heavy snow and blowing snow. Snow is expected to begin Wednesday morning and continue through Thursday into Friday morning.

There is the potential that heavy snow and blowing snow could continue into Friday afternoon. The heaviest snow is expected to fall Wednesday night and Thursday.

Total snowfall accumulations of 30 to 50 cm, with a snowfall rate of 2 to 4 cm per hour at times. The storm will also bring strong wind gusts up to 70 km/h, leading to widespread blowing snow.

Power outages in the region are possible.

As the event draws nearer blizzard warnings may be considered if widespread visibilities are expected to be reduced to less than 400 m due to snow and blowing snow for an extended period of time.

Consider postponing non-essential travel until conditions improve. Surfaces such as highways, roads, walkways and parking lots may become difficult to navigate due to accumulating snow. Visibility will be suddenly reduced to near zero at times in heavy snow and blowing snow. Road closures are possible. If you must travel, keep others informed of your schedule and destination and carry an emergency kit and mobile phone