Higher-than-normal Temperatures and Record-low Snowfall in Japan from December 2019 onward - Japan Meteorological Agency
Since December 2019, eastern and western Japan have seen significantly above normal temperatures, and the Sea of Japan side of the country has experienced record-low snowfall. These climate extremes are attributed to weaker-than-normal southward cold air-flow to Japan’s main islands and synoptic climate conditions characterized by nonpersistence of typical winter pressure patterns around Japan. These phenomena may be attributable to a northward meandering of the subtropical jet stream over and around Japan and a persistent positive phase of the Arctic Oscillation.
Since December 2019, eastern and western Japan have seen significantly above normal temperatures, and the Sea of Japan side of the country has experienced record-low snowfall. These climate extremes are attributed to weaker-than-normal southward cold air-flow to Japan’s main islands and synoptic climate conditions characterized by nonpersistence of typical winter pressure patterns around Japan. These phenomena may be attributable to a northward meandering of the subtropical jet stream over and around Japan and a persistent positive phase of the Arctic Oscillation.
- WMO Member:
- Japan