From japantoday.com:
The Tokyo area was hit by an unusually early snow Monday that played havoc with air, rail and road traffic, affecting hundreds of thousands of passengers, and caused hundreds of injuries, leaving one boy unconscious after he fell off a roof.
At least 228 people suffered injuries due to the snow, mainly in falls on slippery roads or from roofs, in Tokyo and eight neighboring prefectures, according to a Kyodo News survey of local police forces.