NHK: Expert urges caution against more tornadoes — Fukushima borders both prefectures that had devastating twisters on Sunday — Over 250 km/h, among most powerful ever in Japan — Houses completely uprooted (VIDEO)

Published: May 8th, 2012 at 5:33 pm ET
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Weather’s recipe right for twisters
The Japan Times Online
By HIROKO NAKATA
Tuesday, May 8, 2012

Sunday’s devastating tornadoes in Ibaraki and Tochigi prefectures were caused by a rare situation attributed in part to a winter that went on for some weeks longer than normal, and a recent sharp rise in surface temperatures, experts said Monday. [...]

“Tornadoes rarely occur in this season,” said Yasushi Fujiyoshi, professor at Hokkaido University. “It is rare in the first place for cold air to form in the troposphere in May.”

Fujiyoshi said such frigid air is more a feature of the fall and the extended period of freezing weather earlier this year helped create the atmospheric conditions conducive to tornado-formation. [...]

h/t SimlpyInfo, MsMilkytheClown

Sunday’s tornado one of most powerful in Japan
NHK WORLD English
May 07, 2012 16:50 +0900 (JST)

An expert on violent storms says the tornado that ripped through northern Kanto on Sunday may have been one of Japan’s most powerful. [...]

[Professor Fumiaki Kobayashi of the National Defense Academy] estimates wind velocity topped 250 kilometers per hour. Cars were overturned and some houses completely uprooted.

The expert is urging caution against more tornadoes, as atmospheric conditions can turn unstable in days to come.

Watch the video here

Published: May 8th, 2012 at 5:33 pm ET
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32 comments to NHK: Expert urges caution against more tornadoes — Fukushima borders both prefectures that had devastating twisters on Sunday — Over 250 km/h, among most powerful ever in Japan — Houses completely uprooted (VIDEO)