UNC-Chapel Hill GEOG 111 - Tornadoes (cont'd) (2 pages)

Previewing page 1 of 2 page document View the full content.
View Full Document

Tornadoes (cont'd)

Previewing page 1 of actual document.

View the full content.
View Full Document
View Full Document

Tornadoes (cont'd)


Continuation of tornadoes, including their characteristics, development and seasonal/geographic patterns.

Lecture number:
Lecture Note
University of North Carolina at Chapel Hill
Geog 111 - Weather and Climate

Unformatted text preview:

GEOG 111 1st Edition Lecture 36 Outline of Last Lecture I Tornadoes a Characteristics b Super cell thunderstorms Outline of Current Lecture I II III IV V Tornadoes and their attributes a Tornado Strength Tornado development Geographic distribution Seasonal Distribution Tornado damage and safety Current Lecture I Tornadoes and their attributes continued a Tornado strength F 0 to F 6 i As F scale rating increases damage frequency size and duration increase as well 1 Large tornados move the quickest ii Irregular patterns from one year to year iii Strong tornadoes concentrated in tornado outbreaks days with lots of activity iv Weak tornados occur frequently and for a short amount of time v Determining strength 1 Work with structural engineers to assess damage after the tornado vi F 4 and F 5 tornados typically consist of multiple vortices 1 Winds spinning counterclockwise 2 Many tornados are nested within a broader tornado II Tornado development a Wave cyclone circulation counterclockwise b Warm moist air feeding into the system at the warm sector c Directional shear winds are blowing different directions as you go up through the column i Winds are also blowing faster in the upper part of the column d Tornados occur in the warm sector i Instability warm moist air in the lower levels ii Trough approaching cooling of column in middle and top part of the column 1 ELR is steeper so thunderstorms readily develop iii Combine these factors with the wind shear 1 Speed shear causes tornado genesis 2 Rolling wind hits updraft and is translated into the vertical These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute 3 Connect with mesoscale circulation III Geographic distribution i Correlates with terrain ii Need well organized rolls on the surface that s not too rough 1 Mountains and hills inhibit lower level convergence and thunderstorm development 2 Less tornadoes in the western

View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...

Join to view Tornadoes (cont'd) and access 3M+ class-specific study document.

We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Tornadoes (cont'd) and access 3M+ class-specific study document.


By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?