Snowbelt: Difference between revisions
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<!--[[Image:USA-Lake-Effect-Snow-Areas.svg|thumb|right|350px|Map showing some of the snowbelts of the [[United States]], where heavy lake-effect snow occurs.]]--> |
<!--[[Image:USA-Lake-Effect-Snow-Areas.svg|thumb|right|350px|Map showing some of the snowbelts of the [[United States]], where heavy lake-effect snow occurs.]]--> |
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[[File:Great Lakes Snowbelt EPA fr.png|thumb|upright=2|Map showing the snowbelts around the Great Lakes of North America with {{convert|150|cm|in|sigfig=1|abbr=on}} accumulations or more during winter]] |
[[File:Great Lakes Snowbelt EPA fr.png|thumb|upright=2|Map showing the snowbelts around the Great Lakes of North America with {{convert|150|cm|in|sigfig=1|abbr=on}} accumulations or more during winter]] |
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The '''snowbelt''' is a [[North America]]n region, much of which lies downwind of the [[Great Lakes]], where heavy [[snow]]fall is particularly common on |
The '''snowbelt''' is a [[North America]]n region, much of which lies downwind of the [[Great Lakes]], where heavy [[snow]]fall in the form of [[lake-effect snow]] is particularly common on the eastern and southern shores of the lakes. Lake-effect snow occurs when cold air moves over warmer water and picks up moisture that is later released as snow when the air moves over land and cools. The lakes produce lake-effect snow (or [[snowsquall]]s) and continuous cloudy skies throughout the winter months, as long as air temperatures are colder than the lake water temperatures or until the lakes freeze over. |
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Well-known snowbelt sections exist southeast of [[Lake Erie]] from [[Cleveland, Ohio]] to [[Buffalo, New York]] and south of [[Lake Ontario]] stretching roughly from [[Rochester, New York]], to [[Utica, New York]], and northward to [[Watertown, New York]]. Similar snowbelts exist on the eastern shore of [[Lake Michigan]] from [[Gary, Indiana]] northward through [[Western Michigan]] and western [[Northern Michigan]] to the [[Straits of Mackinac]], and on the eastern and southern shores of [[Lake Superior]] from northwest [[Wisconsin]] through the northern half of the [[Upper Peninsula of Michigan]]. |
Well-known snowbelt sections exist southeast of [[Lake Erie]] from [[Cleveland, Ohio]] to [[Buffalo, New York]] and south of [[Lake Ontario]] stretching roughly from [[Rochester, New York]], to [[Utica, New York]], and northward to [[Watertown, New York]]. Similar snowbelts exist on the eastern shore of [[Lake Michigan]] from [[Gary, Indiana]] northward through [[Western Michigan]] and western [[Northern Michigan]] to the [[Straits of Mackinac]], and on the eastern and southern shores of [[Lake Superior]] from northwest [[Wisconsin]] through the northern half of the [[Upper Peninsula of Michigan]]. |
Revision as of 18:15, 25 January 2011
The snowbelt is a North American region, much of which lies downwind of the Great Lakes, where heavy snowfall in the form of lake-effect snow is particularly common on the eastern and southern shores of the lakes. Lake-effect snow occurs when cold air moves over warmer water and picks up moisture that is later released as snow when the air moves over land and cools. The lakes produce lake-effect snow (or snowsqualls) and continuous cloudy skies throughout the winter months, as long as air temperatures are colder than the lake water temperatures or until the lakes freeze over.
Well-known snowbelt sections exist southeast of Lake Erie from Cleveland, Ohio to Buffalo, New York and south of Lake Ontario stretching roughly from Rochester, New York, to Utica, New York, and northward to Watertown, New York. Similar snowbelts exist on the eastern shore of Lake Michigan from Gary, Indiana northward through Western Michigan and western Northern Michigan to the Straits of Mackinac, and on the eastern and southern shores of Lake Superior from northwest Wisconsin through the northern half of the Upper Peninsula of Michigan.
In Canada, many snowbelt regions exist, particularly east of Lake Superior from Sault Ste Marie, Ontario and northward to Wawa, Ontario. Snowbelt regions also exist on the eastern and southern shores of Lake Huron and Georgian Bay in Ontario from Parry Sound, Ontario to London, Ontario. During the winter season, northwest winds cause frequent road closures, especially Hwy. 21 on the shore of Lake Huron and Hwy. 26 from Barrie, Ontario. The Niagara Peninsula and the northeastern shores of Lake Ontario are especially hard hit by heavy snowfalls when southwestern winds are predominant.
Lake Erie is the second smallest of the five Great Lakes and the most shallow. It can completely freeze over during winter. Once frozen, lake effect snow over land to the east and south of Lake Erie is temporarily alleviated. This does not end the possibility of a damaging winter storm. The Great Lakes Blizzard of 1977, that struck metropolitan Buffalo, was a direct result of powder snow blown by high winds off Lake Erie, which had frozen earlier than normal. There was, for the region, no significant snowfall during the duration of the blizzard.
The Lake Erie/Ontario snowbelt has resulted in the rise of the skiing industry, thus lending the region its nickname: ski country.
Snowbelt conditions also are found on the west side of the Japanese island of Hokkaido and the west side of Russia's Kamchatka Peninsula. Here, cold winds blowing outward from the Siberian winter high pressure system pick up moisture while crossing the Sea of Japan and the Sea of Okhotsk and release it as heavy snowfall over the respective land areas – see snow country (Japan). Sweden's east coast can be affected by snow-belt conditions, particularly in the early winter when there is little ice on the Baltic Sea.