objective you will learn the characteristics of storms, in order to identify the various types of...
TRANSCRIPT
Objective
You will learn the characteristics of storms, in
order to identify the various
types of storms.
Warm-up
What comes to mind when
you hear the term severe
weather?
Most Recognizable
What is a Severe Storm?
Most violent weather is associated with LOW pressure systems because air of
different properties mixed there
Thunderstorms Hurricanes
Winter StormsTornadoes
Thunder & Lightning
Superheated air expands and creates shock wave
Can be heard up to 30 miles away
Flash-Sound Interval: 5 sec/mi (3 sec/km)
Not one second = one mile“Heat Lightning” is ordinary
lightning illuminating the clouds
Warm, humid, air rising in unstable environment
Tornadoes!Violent, whirling wind that moves in a narrow
path over land
Fun Facts: 1. The most powerful Tornadoes occur in the United States.2. A typical tornado only lasts for a few minutes.3. Every tornado has its own color, sound and shape.4. You need to step on the pedal of a car pass 70 miles per hour
to outrun the fastest tornadoes.5. The chances that a tornado is a F5, the highest classification
for a tornado on the F-scale, is less than 0.1% (this just occurred!)
6. Tornadoes have been reported in every state in the US and also in every season.
HurricanesHurricane: Atlantic
and East PacificTyphoon: West PacificCyclone: Indian Ocean
Intense Low-Pressure Systems
Need 60 m (200 feet) of ocean water at 26.5 C or warmer to formWinds of at least 119
km/hour
BlizzardA winter storm with strong winds, cold
temperatures, and low visibility, that lasts more
than three hours
• A National Weather Service WATCH means conditions are favorable for severe weather to develop
• A WARNING means that severe weather conditions already exist
• Where are most of the glitter and beads?• Where is the movement of the glitter and
beads the fastest? Where is it the slowest?• How is the vortex model like a real tornado?
How is it like a hurricane?
Vortex Demo
Reflect
• What happened when you first held the model so that the water was in the top of the bottle? Why do you think this happened? Draw a picture of your results
• How did you get the water to flow quickly into the bottom bottle?
• How did the motion of the glitter and beads change as they moved closer to the center of the spiral?
• Think about your model as a tornado. What might the glitter and beads represent? What does their movement tell you about the movement of air within a rotating storm?
• Think about your model as a hurricane. What do you think causes clouds of a hurricane to spiral?
Test Day
• Take out your Blue Packet, Dictionary, and other Meteorology notes
Word Bank 44-55
• Air Pressure• Front• Temperature• Wind• Humidity• Clouds
• Dew point• Cirro• Stratus• Precipitation • Tornadoes• Full of Water
Closure
• Look at the 3 pictures: Identify the storms. What clues helped you classify each storm?, List the specific characteristics that led to the identification.