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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク 1979 Woodstock, Ontario tornado ： ウィキペディア英語版 1979 Woodstock, Ontario tornado On the evening of August 7, 1979 at least three tornadoes touched down in southwestern Ontario, devastating scores of farms and homes in the Woodstock area. The southern end of that city suffered some of the most intense destruction along with several other nearby towns in Oxford County. Two people died, 142 were injured, and hundreds of homes suffered significant damage. Overall monetary losses totaled an approximate $100 million in 1979 Canadian dollars.〔(Tourism of Oxford County, Ontario - Heritage Tidbits )〕 ==Meteorological synopsis== A relatively cool and dry airmass was being pushed in from the north by means of a cold front, into warm and unstable air from the southern United States. Severe weather had already affected northeastern Ontario the evening before with this same cold front. During the late morning of the 7th the front had stalled across the Bruce Peninsula, where newer convection produced a couple of weak F1 tornadoes near the towns of Wiarton and Tara.〔(Tornadoes - Atmospheric Hazards Web Site - Ontario - Adaptation and Impacts Research Group - [Meteorological Service of Canada - The Green Lane] )〕 It has been speculated that a large outflow boundary associated with these particular storms may have interacted with the lake breeze fronts, thus resulting in the Woodstock and Stratford tornadic supercells later that day. The Ontario Storm Prediction Centre in Toronto issued a severe thunderstorm watch for southwestern Ontario at 3:40pm. The first thunderstorms of the afternoon began forming over Lake Huron before coming ashore in southern Bruce County (Toll, 1980). Storm motion was primarily to the southeast, and as these storms quickly began to intensify, reports of large hail began to pour in. A severe thunderstorm warning was issued at 6:15pm for Oxford, Perth County and Waterloo Region (Toll, 1980). A broken line of intense thunderstorms propagated toward Highway 401 with the two most intense storms located near Stratford and Embro. At this point, a tornado touchdown was mere minutes away as they began to morph into the powerful supercell variety, possibly a result of convergence along the Lake Erie and Lake Huron breeze fronts. 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「1979 Woodstock, Ontario tornado」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.