Every winter in the western north Pacific, in the region around Japan, extratropical cyclones form and zoom to east making landfall over eastern Canada.A separate study in the Northern Hemisphere suggests that approximately 234 significant extratropical cyclones form each winter. Extratropical cyclones form.
The extratropcial cyclone developing over eastern Russia on
February 20, 2012
The extratropical cyclone gaining strength over northern Japan 1 day later
The Extratropical cyclone whiching peak intensity on February 22
The Extratropcical cyclone weakening steadily on February 23.
