U.S. Month 1-3 Ahead Outlook: Warm Northwest pattern (September) shifts to South-central to New England (October to November).

Executive Summary: The Climate Impact Company month 1-3 ahead forecast valid for meteorological autumn 2021 is updated. The forecast is based on regional SSTA-based analogs and primarily the NCEP CFS V2 model. Highlights include more anomalous heat for the Northwest U.S. in September followed by a southern (and eastern) shift of the warm pattern for…