The National Weather Service issued a dense fog advisory for western Canyon County Thursday morning.

Motorists should expect dense fog — reducing visibility to less than a quarter mile in some areas — until about noon today. The sun is expected to burn off the fog in the early afternoon.

Fog blanketed the West Treasure Valley just before 9 a.m. At 10 a.m., a Canyon County dispatcher said the fog hadn't caused any crashes or other issues.

Fog may be an issue for commuters across the Treasure Valley Friday morning, a Weather Service meteorologist said.

Some parts of the Valley received more snow overnight — from a dusting to as much as an inch in areas west of Eagle Road. The airport recorded only a trace.

Temperatures will dip down to 19 tonight, and the high Friday will be about 33.