Recently, a colleague explained that the recent cold spell in the eastern United States could have been predicted using the Bering Sea Rule. The idea is that 17-21 days after a storm appears in the Bering Sea, a storm will appear in the United States.
- Is this rule reliable?
- What is the explanation for it?
- What is the skill of a forecast using the Bering Sea Rule?
Here is a news report that mentions it for the recent weather pattern.