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Extreme Weather Events Page 26 Lake Effect Snow: Occurs when Cold winds blow across a warm lake and picks up moisture which results in heavy localized.

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Presentation on theme: "Extreme Weather Events Page 26 Lake Effect Snow: Occurs when Cold winds blow across a warm lake and picks up moisture which results in heavy localized."— Presentation transcript:

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2 Extreme Weather Events Page 26

3 Lake Effect Snow: Occurs when Cold winds blow across a warm lake and picks up moisture which results in heavy localized snow NYS Lake Effect Snow 2003 Page 26

4 BLIZZARD: Is a severe snowstorm with strong sustained winds of 35mph for 3 hours or more NYS Lake Effect Snow 2003 Page 26

5 Lake Effect Snow: Cold wind blows across a warm lake and picks up moisture. NYS Lake Effect Snow 2003

6 New York State & Lake Effect Snow Prevailing Winds

7 Page 13

8 Where in New York State?  Topography- elevation of the land on the eastern end of Lake Ontario increases  What does this do?

9 Questions from Pages 23-24 1. The warmer the water temperature and the cooler the air temperature the greater the potential for lake effect snow

10 2.Prevailing South westerly winds blow across the entire length of Lake Ontario picking up the most moisture as possible

11 Questions from Pages 23-24 3.Orographic effect- as the air moves inland it is forced to climb the slopes of the Tug Hill Plateau

12 Page 27

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14 Hurricane Development Page 27

15 Forecasting hurricanes has evolved

16 What is a Hurricane? A tropical cyclone Counter-clockwise circulation around a Low-Pressure System. Sustained winds exceeding 64 knots (74 mph) Usually about 500km in diameter Page 27

17 Hurricanes  Occur late summer or early fall  Form over _______________ __________  Gain energy from  Lose energy when they go over ___________ or ________________  Produce ______________, and ____________ Tropical (warm) waters the condensation of millions of gallons of water vapor from solar evaporation land Cold water Storm surge High winds Page 27

18 What is a Hurricane? Usually about 350-500 miles in diameter Length or duration- a hurricane can last for 1- 2 weeks Page 27

19 Hurricane far off shore Rough surf hundreds of miles away. Storm Surge Storm surge is a bulge of ocean water that piles up beneath the hurricane Page 27

20 Hey! Let’s check out the storm! Page 27

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