Thick fog has blanketed much of southwestern Ontario this morning.
Environment Canada has issued a fog advisory, warning of near zero visibility in some areas.
School buses in Sarnia-Lambton and Chatham-Kent are cancelled for the morning run in zones 1 through 8. However, CLASS officials say the buses will be back on the roads this afternoon to bring kids home from school.
Drivers are urged to take their time and use caution this morning with the risk of freezing drizzle in the mix as well.
