A snowstorm is heading towards southwestern Ontario, or it could be another case of much ado about nothing. 
A Texas Low is tracking towards the region, and could bring as much as 15 cm of snow before Thursday morning, however Environment Canada says there’s still a lot of uncertainty about where the system is headed.
As it stands, snow is expected to begin this evening, become heavy during the day tomorrow, and taper to flurries by tomorrow night.