range timescale referred to as subseasonal‐to‐seasonal (S2S) has received little attention.
S2S prediction fills the gap between short‐range weather prediction and long‐range
seasonal outlooks. Decisions in a range of sectors are made in this extended‐range lead
time; therefore, there is a strong demand for this new generation of forecasts. International
efforts are under way to identify key sources of predictability, improve forecast skill and …