From Environment Canada March 2:

Snow squall watch in effect for:

• Temiskaming Shores – Temagami

Brief, intense snowfall is expected to develop. Under the snow squall, visibilities will be significantly reduced due to the heavy snow.

Hazard:
A burst of heavy snow, reducing visibilities.
Snow accumulations up to 5 cm in just a short period of time.

When:
Between 2:00pm EST and 8:00pm EST.

Discussion:
An enhanced band of heavy snow may develop along a cold front moving through the area today.

Impacts:

Snow squalls cause weather conditions to vary considerably; changes from clear skies to heavy snow within just a few kilometres are common. Visibility may be suddenly reduced at times in heavy snow.