We fish on several lakes on one property. Some lakes are frozen to 3 inches and others are ice free. If it has been below freezing for weeks, why haven't all lakes froze ?
Here are a few reasons from an Ask a Climatologist article on Alaska Public Media.
- Amount of water in the lake: It takes longer for a deeper lake to release all its heat, therefore it will take longer to freeze over.
- If the lake is surrounded by trees sunlight is less likely to reach it during the winter.
- If there is water coming into a lake and leaving the lake from a coldwater stream the lake will freeze sooner because it will take longer for the lake to accumulate heat.