National Weather Service United States Department of Commerce

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

As of October 1, 2024, in conjunction with the NWS Hazard Simplification initiative, all wind chill and freeze products will be consolidated and changed nationwide.

Extreme Cold Watch and Wind Chill Watch will be consolidated into Extreme Cold Watch.

Extreme Cold Warning and Wind Chill Warning will be consolidated into Extreme Cold Warning.

Wind Chill Advisory will be replaced with Cold Weather Advisory.

Hard Freeze Watch and Freeze Watch will be consolidated into Freeze Watch.

Hard Freeze Warning and Freeze Warning will be consolidated into Freeze Warning.

Previously, Extreme Cold and Wind Chill products were based upon the wind chill and required a certain wind threshold. Starting October 1, 2024, these products will be issued based on the temperature or the wind chill, and there will be no wind threshold. In other words... wind or no wind, cold is cold! Please see the below images for the criteria for Cold Weather Advisory and Extreme Cold Warning.

Cold Weather Advisory

Extreme Cold Warning