objective you will learn the characteristics of storms, in order to identify the various types of...

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.