Subseasonal Great Plains Rainfall via Remote Extratropical Teleconnections: Regional Application of Theory-guided Causal Networks

Abstract

Understanding summertime continental U.S. (CONUS) hydroclimate predictability on the subseasonal-to-seasonal (S2S) timescale has been challenging, and relationships between tropical remote forcing and mid-latitude circulation are difficult to assess due to the overall weak signals of the summer season (Trenberth et al., 1998;S. Zhou et al., 2012). Many studies suggest that Asian summer monsoon (ASM) variability on the seasonal-to-interannual timescale, especially over the West North Pacific (WNPM) and/or East Asian Monsoon (EAM) region, can influence CONUS hydroclimate via a quasi-stationary Rossby wave response (