Trip planned Nov. 2012 Duration  May 16 – May 24, 2013 Participants  Ohio State students & alum  Friends of the National Weather Service/Storm Prediction.

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Presentation transcript:

Trip planned Nov Duration  May 16 – May 24, 2013 Participants  Ohio State students & alum  Friends of the National Weather Service/Storm Prediction Center Nighttime Storm in Norman, OK (May 21 st ) Jared Allen, National Weather Service LET’S GO CHASE SOME STORMS!!!

CLEAR SKIES – PERFECT Strong surface heating Storms firing up ahead of dryline

Typical Storm Motion Vantage Point

Gustnado

WHERE IS THE TORNADO? “Rope out” stage Tornado is dissipating

“Genesis and Maintenance of a long- track EF-5 Tornado”  Models an EF-5 tornado that occurred outside of Oklahoma City on May 24, 2011  Modelers  Leigh Orf, Central Michigan University  Roberth Wilhelmson, NCSA/UIUC  Louis Wicker, NSSL  Bruce Lee, WindLogics  Catherine Finley, WindLogics Cloud Model 1 (CM1)  3-D numerical simulation  Deep precipitating convection

Radar Site

EF Rating3 Second Wind Gust (mph) >200 Damage path 14.5 miles; max width > 1 mile EF0 and EF1 damage in northern Newcastle at 2:56 PM CDT EF2, EF3 and EF4 damage observed 4 minutes later. EF4 damage continues through Briarwood and Plaza Towers elementary schools. Few locations experience EF5 damage. 24 fatalities 2:56 PM 3:00 PM 3:16 PM 3:36 PM 3:29 PM

Chris Birchfield National Weather Service

Nolan T. Atkins, Kelly M. Butler, Kayla R. Flynn, and Roger M. Wakimoto, 2014: An Integrated Damage, Visual, and Radar Analysis of the 2013 Moore, Oklahoma, EF5 Tornado. Bull. Amer. Meteor. Soc., 95, 1549–1561. Storm Prediction Center Product & Report Archives: Tornado Simulations: Leigh Orf, Central Michigan University, Mount Pleasant, MI; and R. B. Wilhelmson, L. J. Wicker, B. D. Lee, and C. A. Finley. “Genesis and maintenance of a long-track EF5 tornado embedded within a simulated supercell”. Special thanks to Brian Shell, Chris Birchfield, and Jared Allen for some of the pictures! Other images and radar animation: