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2011 Groundhog Day Blizzard

2011 Groundhog Day Blizzard. Emily Skrabak Speech and Hearing Science The Ohio State University. What is a Blizzard?. For 3+ hours: Sustained winds or frequent gusts at least 35mph or greater Falling and/or blowing snow reduced visibility ¼ of a mile or less Blizzard vs. Snowstorm.

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2011 Groundhog Day Blizzard

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  1. 2011 Groundhog Day Blizzard Emily Skrabak Speech and Hearing Science The Ohio State University

  2. What is a Blizzard? • For 3+ hours: • Sustained winds or frequent gusts • at least 35mph or greater • Falling and/or blowing snow • reduced visibility ¼ of a mile or less • Blizzard vs. Snowstorm

  3. How do Blizzards Form? 3 requirements: 1. Cold air at the surface 2. Moisture in the atmosphere 3. Rising warm air

  4. 2011 Groundhog Day Blizzard • January 31st- February 2nd, 2011 • Storm of “historic proportions” • New Mexico and Northern Texas  New England and Eastern Canada • Cold dry air from Canada clashing with warm moist air from the Gulf • 21 states reported snowfall of 5+ inches

  5. Early stages

  6. Satellite view

  7. Snowfall

  8. Chicago #3 biggest snowfall on record Winds up to 60+mph Visibility near zero Some snow drifts up to 10 feet

  9. http://www.youtube.com/watch?v=4CBjfhNUnZI http://www.youtube.com/watch?v=qV3Bcngnv3M

  10. Blizzard Effects • Other extreme weather • Thunderstorm • Ice • Transportation issues • School/event cancellations • Closed businesses • Safety • Property damage

  11. Blizzard safety Stay indoors Minimize travel Stock up on supplies Keep an eye on the weather

  12. Summary Blizzard criteria How blizzards are formed 2011 Groundhog Day Blizzard Effects of blizzards Blizzard safety

  13. Sources http://www.accuweather.com/en/features/trend/blizzard-one-of-the-most-commo-1/58712 http://www.eo.ucar.edu/kids/dangerwx/blizzard3.htm http://weather.about.com/b/2011/02/03/the-groundhog-day-blizzard.htm http://www.aolnews.com/2011/02/02/groundhog-day-blizzard-aftermath-chicago-and-indiana-slammed-v/ http://www.crh.noaa.gov/lot/?n=2011blizzard http://www.accuweather.com/en/weather-news/groundhog-day-storm-may-affect-1/45062 http://local.msn.com/how-do-blizzards-form

  14. Questions?

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