All About Weather

Eric AngatTeacher

How can warm air hold more water vapor cold air?

Because warm air is lighter than cold air. Cold air is denser so there is less space for water vapor to fit in.

Warm air rises because it is lighter or less dense. Cold air sinks because it is heavier and denser.

THREE FACTORS AFFECT WIND DIRECTION

What are the three factors that affects the direction of wind?

1. Pressure Gradient Force

2. Coriolis Effect

3. Frictionhttp://home.comcast.net/~rhaberlin/pwpptnts.htm

How are hurricanes and tornadoes related to air masses? They form within air masses.

A. They form where air masses meet.

B. They form where air pressure is the same.

C. They form where air temperatures are the same

Answer the following questions.

1.What is the indication that the Earth is moving?

2.What is the velocity of earth in the equator and near the north pole and south poles?

3.How do you explain the differences in velocities on the rotation of Earth?

4.What does it mean by deflection?5.What is the Coriolis effect?

http://www.youtube.com/watch?v=aeY9tY9vKgs

1. What is the indication that the Earth is moving?

2. What is the velocity of earth in the equator and near the north pole and south poles?

3. How do you explain the differences in velocities on the rotation of Earth?

4. What does it mean by deflection?

5. What is the Coriolis effect?

The Sun is rising from the East and sets on the West.

1018 mph at the equator and 882 mph at the poles.

As you go North or South of the equator you come closer to earth’s axis of rotation.

Deflection means changing direction.

Since earth is rotating. Wind in the northern hemisphere is deflected to the right while wind in the southern hemisphere is deflected to the left.

Northern hemisphere,

wind is deflected to the right.

Southern hemisphere,

wind is deflected to the left.

Answer the following questions.

6.What does meteorologist do?7.What is water made of?8.What causes evaporation?9.What is transpiration?10.What causes condensation?11.What happens when water condenses?12.Rain, hail, sleet and snow are called?13.How do lightning occur?14.How do meteorologists know the weather?

http://www.youtube.com/watch?v=kr2soYHLv74

6. What does meteorologist do?

7. What is water made of?

8. What causes evaporation?

9. What is transpiration?

10.What causes condensation?

11.What happens when water vapor condenses?

12.Rain, hail, sleet and snow are called?

13.How do lightning occur?

14.How do meteorologists know the weather?

Predicts and discuss the weather.

Each water molecule is made of H2O.

Evaporation happens because of the Sun.

Transpiration is water vapor released from plants.

Condensation happens it is colder in the upper troposphere.

Water vapor becomes clouds.

They are called precipitation.

The interaction of the positive and negative charges .

Meteorologist use the doppler radar and other weather instruments.

Doppler radar can see the precipitation in a thunderstorm and the motion of the precipitation along the radar beam.

Answer the following questions.

15. Why is the job of predicting weather difficult?16. What is the “A-Train”?17. What satellite will help predict climate change?18.Why do farmers need to know the weather?19.Why do pilots need to know the weather?20.Why do we need to know the weather?21.What are clouds made of?22.How are cloud classified?23.What are the three basic shapes of clouds?24.What are the three altitude ranges of clouds?25. What is fog?26.Why is it important to study clouds?

http://www.youtube.com/watch?v=dqpFU5SRPgY

http://www.youtube.com/watch?v=dqpFU5SRPgY

15. Why is the job of predicting weather difficult?

16. What is the “A-Train”?

17. What satellite will help predict climate change?

18.Why do farmers need to know the weather?

19.Why do pilots need to know the weather?

20.Why do we need to know the weather?

Because the atmosphere is constantly changing.

A –train is a series of satellites that predicts the weather and studies climate change.

CALIPSO is the satellite that will study climate change.

CLOUDSAT mission will help farmer know the best time to plant and harvest.

Flight paths are scheduled based on weather.

So we plan our daily activities.

21.What are clouds made of?

22.How are cloud classified?

23.What are the three basic shapes of clouds?

24. What are the three altitude ranges of clouds?

25. What is fog?

26. Why is it important to study clouds?

Clouds are made of water.

Clouds are classified based on their shape, altitude, and the ability to produce precipitation.

Cumulus ( puffy), stratus ( layered) , and cirrus ( whispy)

Cirrus ( high clouds), alto ( middle clouds), stratus ( low clouds)

Fog is a low cloud.

Clouds greatly affect our weather.

Answer the following questions.27. What happens when air masses meet?28. What is a front?29. What is a cold front?30.What kind of clouds form in a cold front?31.What is common among cold fronts?32.What is a warm front?33.What kind of clouds form in a warm front?34.What kind of weather do we experience when there

is a warm front?35.What is stationary front?36.What is an occluded front?37.How do air masses ( warm air and cold air) move?

http://www.youtube.com/watch?v=vPC5i6w3yDI

27. What happens when air masses meet?

28. What is a front?

29. What is a cold front?

30.What kind of clouds form in a cold front?

31.What is common among cold fronts?

32.What is a warm front?

33.What kind of clouds form in a warm front?

Weather fronts are formed.

Fronts are where air masses meet.

Cold air mass is pushing the warm air mass.

Cumulus and cumulonimbus clouds.

Thunderstorm, snow storm and blizzards.

Warm air mass pushes a cold air mass.

Thick low clouds (stratus) form.

34. What kind of weather do we experience when there is a warm front?

35. What is stationary front?

36. What is an occluded front?

37. How do air masses ( warm air and cold air) move?

The weather is moderate to steady light rain.

When cold and warm air masses are not moving a stationary front is formed.

When a warm front is lifted above the ground an occluded front is formed.

Air masses move from areas of high pressure to areas of low pressure.