The Bering Sea Rule

The weather pattern in the Bering Sea has a 17-21 day correlation to the weather pattern in the contiguous United States.

Day ~12-23 forecast. Give or take a day or two depending on the BSR to CONUS lag time. Archived maps here.
Joseph Renken (contact), founder of the Bering Sea Rule (BSR)
Data to formulate BSR products obtained from ERDDAP (erdNavgem05D500mb)
Website content created, formulated, and maintained by Josh Herman (contact)