This dataset contains subseasonal-to-seasonal (S2S) hindcasts with CESM2-WACCM that were done in support of a NOAA project and also NCAR NSC project on Whole Atmosphere subseasonal predictability. These forecasts consist of 45-day long runs initialized every Monday from 1999 to 2019, 11 ensemble members for start dates between Septemeber and March (winter season). Output includes atmospheric, land, ocean and sea-ice variables. The project utilized both NOAA gran and core funding. NOAA did not require us to publish data, but as part of the NCAR mission (and core funded effort) we do need to put things out for the community and also to publish findings.
