EESA09H3 Lecture Notes - Lecture 4: Alberta Clipper, Concept Map, Andrea Gail
1 Jul 2013
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Relatively rare return rate to great lakes. Data readily available on web (i. e. , environment canada) Examine records of hurricanes in north america (atlantic basin) since 1951 to. 2000: 10 hurricanes in great lake region: 1 every 5 years, never more than 1 per year, clustering: According to gray"s index, this is maybe linked to north atlantic. The 6 examples occurred approx. in september and october, and over: 121. 4mm at toronto pearson airport the great lakes no great lake hurricanes, 2006-2007, 2008. The major difference between when storms pass oceans and lakes is that great lakes are not affected by strong currents: snow storm in 2011: U of t was closed for the day (midlatitude cyclone, gulf low ) From texas, it went to 2-3 more states of us, then over to canada. What actually happened was: wasn"t as bad as what the forecast was. Commonly referred to as a low or low pressure system or frontal system .
