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Tornadoes are fairly uncommon in the US region of New England. Fewer tornadoes are recorded here than anywhere else east of the Rocky Mountains.〔Zielinski and Keim, p. 200〕 However, these deadly and destructive storms do occur; on average, about eight tornadoes are reported in the region each year. Almost 200 people have been killed by these storms in recorded history, and two of the ten most destructive tornadoes in US history occurred in this region. ==Climatology== Tornadoes are a violent weather phenomenon that occur most often in the United States, to the east of the Rocky Mountains. However, they most often occur in the Southern and Central United States, and are comparatively rare in New England. However, no region is immune to tornadoes if the weather conditions are right. While tornadoes have been recorded in almost every county in New England, there is a region just east of The Berkshires with a much higher concentration of tornado occurrences. This area is analogous to the Tornado Alley of the Great Plains, but on a much smaller scale.〔 On average (1950–2008), more than two tornadoes per year strike the state of Massachusetts alone, with New England as a whole recording more than 8.〔〔 Most tornadoes reported in the region are "weak", rated EF0 or EF1 on the Enhanced Fujita Scale (the Fujita scale prior to 2007). Around 30% are "significant" tornadoes (rated EF2 or greater), and only 1% are violent (rated EF4 or EF5, the highest damage rating). Weak tornadoes occur in all areas of New England, but EF3 or greater tornadoes have been reported only in New England's practical "Tornado Alley" of Massachusetts, Connecticut, and southern New Hampshire.〔 Peak tornado activity in New England occurs during the summer months of June, July and August. Tornadoes typically strike between 3 and 9 pm local time, and move at a forward speed of around . 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tornadoes in New England」の詳細全文を読む スポンサード リンク
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