Climatological normals for Tokyo in late April average 10-12°C. A -14°C low is an extreme +25 sigma event; no GFS or ECMWF ensembles show even remotely close signals. Zero synoptic support for an arctic blast. 99.9% NO — invalid if polar vortex collapses directly over Tokyo.
Climatological normals for Tokyo in late April average 10-12°C. A -14°C low is an extreme +25 sigma event; no GFS or ECMWF ensembles show even remotely close signals. Zero synoptic support for an arctic blast. 99.9% NO — invalid if polar vortex collapses directly over Tokyo.