XI. Remind participants that their first preference should always be to avoid an adverse weather situation. This module deals with what to do if you haven't been able to avoid it. You will discuss those situations where the school bus driver has to decide what to do.
XI.A. Tell participants that all the information covered in this section will be on a handout which you will distribute shortly.
XI.D. Earthquake isn't really a weather condition but it is a non-manmade catastrophic situation.
XI.E. Distribute Handout #10, Catastrophic Weather Conditions. Review it with the participants.
XI.G.1.f.2 A cloud system that may develop a tornado has a particular formation. One of the early clues is the presence of a low flat cloud base from which little visible precipitation is falling. When part of the rain-free base lowers, it is called a wall cloud. The wall cloud indicates the storm's strongest updraft area and it is the primary location for severe weather development. A wall cloud with persistent rotation denotes a very dangerous storm that may produce large hail, strong down bursts, and a tornado.
XI.G.1.f.4 Many people report that a tornado sounds like a freight train.
XI.G.2.b. DO NOT evacuate to under a bridge or overpass. This area can become the equivalent of a wind tunnel. People under a bridge or overpass can be hit by flying debris or can be sucked out.
XI.G.2.d. EMPHASIZE the responsibility the school bus driver has for evacuating students properly. The school bus driver must know the policy and procedures for evacuation and the students must have participated in practice evacuation drills.
XI.H.2.d. Superstructure includes roads, bridges, power lines, etc.
XI.H.2.f. After an earthquake near an ocean, there is a very real danger of seismic sea waves.