Graphical Abstract

Huang, H.-P., and G. N. Raghunathan, 2022: Predictability associated with high-latitude retrograde waves in the 1979-80 winter season. J. Meteor. Soc. Japan, 100, 233-243.
Graphical Abstract Published


Plain Language Summary: The presence of coherent retrograde waves is found to influence extended-range weather forecast in the higher latitudes of the Northern Hemisphere. In the 1979-80 winter season, ensemble reforecasts made within the active period of retrograde waves exhibit an elevated level of anomaly correlation of 500 hPa geopotential height in week-2. The enhanced predictability is particularly significant for the long-wave components.