英和和英

出典:『Wikipedia』 (2011/02/04 05:46 UTC 版)

英語による解説

引用

A Blizzard Watch is an advisory issued by the National Weather Service of the United States which means winds greater than 35 miles per hour (30 kn; 56 km/h), mixed with falling or blowing snow, and visibilities of ¹⁄₄ miles (0.4 km) or less is forecast for a period of 3 hours or more. A blizzard watch is issued 36 to 12 hours before an expected blizzard event.