ATM 200 - Natural Disasters

Ch 10 –Tornadoes,

Lightning, Heat, and Cold

Wed., 16 September 2015

Rachel Humphrey – Vortex2/2009

Daily Announcements:

1) “Hurricane Strike!” Assignment Due: Monday, September 28.

2) Exam #1 is Wednesday, September 30.

Song #1: “Deadly Beauty” by John Fausett

Song #2: “Tornado of Souls” by Megadeth

Text Source Today: Chapter 10 (p. 264-274)

· Tornadoes and “Tornado Alley” Notes Template

· Fujita Scale and Enhanced Fujita Scale PDF DOC

· Doppler Radar Reflectivity and Radial Velocity

· Tri-State Tornado, 1925

· Moore, Oklahoma, 1999 El Reno Tornado - 2013

· Super Outbreak, 2011 Storm Chase Tragedy

· Tornado Safety

· SPC Convective Outlooks

Study Guide Material (Stacey’s Guide) :

1) What is a tornado and what time of the year are the most common?

2) Where is “Tornado Alley?”

3) Describe the weather conditions necessary for the development of a tornado.

4) What is a “mesocyclone?” How does it form?

5) How are tornadoes rated on the Fujita Scale? How rare are F5 (EF5) tornadoes?

6) †From 1985-2008, which location had the most U.S. tornado fatalities?

7) Why does a tornado appear as a “hook echo” on a Doppler reflectivity screen?

8) What would a tornado look like on a Doppler radial velocity screen?

9) Key facts: 1925 Tri-State Tornado; 1999 Moore, OK; 2011 Super Outbreak

10)Know the basic tornado safety rules and what “not to do!”