Long Range Weather Forecast

Time-based ensemble of long range weather forecasts.
The image shows a superposition of subsequent forecast runs for daily temperature and precipitation, relatively to the last 10 years climat means.

Base forecast data: NCEP CFSv2 (Saha, Suranjana and Coauthors, 2014: The NCEP Climate Forecast System Version 2 Journal of Climate J. Climate, 27, 2185–2208).
Climat dataset: NCEP Reanalisys 2 (NCEP-DOE AMIP-II Reanalysis (R-2): M. Kanamitsu, W. Ebisuzaki, J. Woollen, S-K Yang, J.J. Hnilo, M. Fiorino, and G. L. Potter. 1631-1643, Nov 2002, Bulletin of the American Meteorological Society).