Orangeville Weather Alert – Government of Canada
- Innisfil – New Tecumseth – Angus
- Orangeville – Grand Valley – Southern Dufferin County
- Shelburne – Mansfield – Northern Dufferin County
Visibility may be significantly and suddenly reduced to near zero. If travelling, be prepared for areas of near-zero visibility. If visibility is reduced while driving, slow down, watch for tail lights ahead and be prepared to stop.