A snow squall warning has been issued for Waterloo Region, Guelph and Wellington County by Environment Canada.
The agency is calling for lake effect snow squalls on Wednesday that could lead to accumulations of over 15 centimetres by the evening.
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They also say that strong winds combined with bursts of heavy snow could result in “extensive blowing snow,” especially over open areas.
Drivers are urged to take caution due to visibility issues as weather conditions could change rapidly from clear to heavy snow if a snow squall hits.
Surfaces such as highways, roads, walkways and parking lots may become problematic to traverse around as well.
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The snow squall warning comes ahead of a winter storm expected to hit southern Ontario on Saturday.
Environment Canada says rain, freezing rain and snow are all possible with the system, but it’s still not clear which areas will be impacted most.