The ice's natural crystalline structure is changed by constant freezing and thawing. Ice does not freeze at a uniform rate. It may be a foot thick in one spot, and just an inch thick only ten feet away. A layer of snow can insulate the ice underneath, slowing down the ice-forming process, making a stroll across the lake potentially dangerous. Ice near the shore is weaker.
Ice forming over flowing water is most dangerous, especially rivers, streams, or spring-fed lakes.
Use common sense. Take a few minutes to observe the ice. We're committed to bringing you all the weather information that really matters. Our Storm Warnings that crawl across your screen give you first alert that severe weather conditions are developing. They will be accompanied with detailed information about which areas are affected, and live reports when necessary.