Environment Canada has issued a freezing drizzle advisory for Fort Smith and the Salt River First Nation.
The advisory warned freezing drizzle can produce thin, hard-to-detect layers of ice. Surfaces like highways, roads, walkways and parking lots may become icy and slippery, it stated.
Environment Canada issues freezing drizzle advisories when drizzle in sub-zero temperatures is expected to freeze on contact and create icy surfaces over time.
The advisory says conditions in Fort Smith are expected to improve later on Thursday evening.