Meteorology 4d

Meteorology 4d

Fronts, Air Mass, Air Pressure

Hurricanes Formation

•  As ocean water warms, some of this water evaporates and transfers thermal energy into the atmosphere.

• The water vapor then cools and condenses to form clouds. The increase in water vapor raises the humidity, and the transfer of thermal energy raises the temperature. 

Hurricanes are large, tropical weather systems with an extremely low barometric pressure (air pressure), heavy rains, and high wind speeds.

AKS 4e: Hurricanes

Hurricanes gather heat and energy through contact with warm ocean waters.

As the surface warms, more water evaporates and rises which fuels the system, and increases the strength of the storm. 

Global wind systems are responsible for carrying hurricanes along their path. 

Once a hurricane moves into colder waters or over land, it decreases in strength because it no longer has a source of energy. 

Air Massess

• Large bodies of air

• Similiar Temperature and Moisture

• Temperature= Hot or Cold

• Moisture= Dry or Humid

Air Mass

Large bodies of air Similiar Temperature and Moisture Temperature= Hot or Cold Moisture= Dry or Humid

Multiple Choice

Describe a tropical air mass.

• Dry

• Wet

• Cold

• Warm

Multiple Choice

Describe an arctic air mass.

• Dry
• Wet
• Cold
• Warm

Multiple Choice

How do we characterize an air mass that forms over land?

• Dry
• Wet
• Cold
• Warm

Multiple Choice

How do we characterize an air mass that forms over near the equator?

• Dry
• Wet
• Cold
• Warm

Multiple Choice

How do we characterize an air mass that forms over the ocean?

• Dry

• Wet

• Cold

• Warm

Multiple Choice

How do we characterize an air mass that forms over the ocean?

• Dry
• Wet
• Cold
• Warm

Multiple Choice

What do air masses have in common ?

• Temperature and Density

• Direction and Temperature

Air Pressure

• High Pressure= Cold air mass that Sinks toward us

• Low Pressure= Hot air mass that rises into the atmosphere

Multiple Choice

Based on the information in the table, in which city will it most likely rain?

• City W
• City X
•  City Y
• City Z

Multiple Choice

High pressure will usually bring what kind of weather?

• clear and dry
• cloudy and wet

Multiple Choice

Pressure is the effect of

• the weight of all the air above pressing down
• water vapor in the atmosphere
• greenhouse gases
• solar radiation

Multiple Choice

Low pressure will usually bring what kind of weather?

• Sunny
• Calm
• Stormy

Multiple Choice

What Causes differences in air pressure around earth ? 

• Warm air rises at the equator, and cold air sinks at the poles.
• Equator gets over heated 
• Snow 

Multiple Choice

Which is most associated with a thunderstorm?

• low air pressure
• high air pressure
• winds blowing from the West
• winds blowing from the East

Multiple Choice

On a cold, cloudy day, the local weather forecaster predicts that a high pressure system will be moving into the area in the next 24 hours. Which weather conditions will this system most likely bring to the area?

• stormy
• sunny
• snowy
• hot

Multiple Choice

In the morning, Carlos noticed that the air pressure reading on the barometer was beginning to drop. What kind of weather can he most likely expect in the evening?

• The weather will be cloudy with a chance of rain.
• The weather will be warmer with clear skies.
• The weather will be clear and windy.
• The weather will be sunny and cool.

Multiple Choice

Which kind of weather change will occur with an increase in air pressure?

• cooler and dryer
• colder and rainier
• hotter and stormier
• warmer and moister

Multiple Choice

Which weather condition will most likely occur when the atmospheric pressure in an area begins falling?

• dry
• cold
• rainy
• sunny

Multiple Choice

78% of earth's atmosphere is composed of ______________.

• methane
• oxygen
• argon
• nitrogen

Multiple Choice

What is altitude?

• how much something weighs
• the distance above sea level
• how big something is
• how far away something is

Multiple Choice

What happens to air pressure as you move upward into the atmosphere?

• increases

• decreases

• stays the same

Multiple Choice

What happens to air pressure as you move upward into the atmosphere?

• increases

• decreases

• stays the same

Multiple Choice

What type of weather is formed at a low pressure system

• warm air rising leading to clear skies

• cold air rising leading to rain clouds forming

• warm air rising leading to rain clouds forming

• cold air sinking leading to clear skies

Fronts

• Cold front= Heavy Rain Thunderstorms

• Warm Fronts= light drizzle

Multiple Choice

What does this symbol on a weather map indicate? 

• High pressure system
• Low pressure system
• Cold front
• Warm front

Multiple Choice

Winds are caused by differences in 

• precipitation
• humidity
• air pressure
• turbulance

Multiple Choice

This is the symbol for which type of front?

• cold front
• warm front
• stationary front
• occluded front

Multiple Choice

If an air mass is sinking, it must be

• cold and less dense
• cold and more dense
• warm and more dense
• warm and less dense

Multiple Choice

If an air mass is rising, it must be

• cold and less dense
• cold and more dense
• warm and more dense
• warm and less dense

Multiple Choice

The symbol on a weather map for a cold front is what?

• a line with triangles on it
• a line with semi-circles on it
• a line with squares on it
• a line with circles on it

Multiple Choice

When I cold front is approaching, what happens?

• warm air is pushing under cold air causing humid weather and lower temperatures
• warm air is pushing under cold air causing humid weather and higher temperatures
• warm air rises, cools, and causes rain and thunderstorms
• cold air is pushed over warm air causing rain and thunderstorms

Multiple Choice

In a high pressure systems

• there are few clouds because the air in moving downward
• there are many clouds because the air is very humid
• there are few clouds because the air is moving outward
• there are many clouds because the air is moving upward

Multiple Choice

Which system results in rainy or stormy weather?

• high pressure
• low pressure
• hurricane
• weather system

Multiple Choice

What symbol is this?

• warm front
• cold front
• stationary front
• occluded front

Multiple Choice

Which type of front is pictured?

• Cold front
• Warm front
• Occluded front
• Stationary front

Multiple Choice

_____________ air is more dense and tends to sink

• cold
• warm
• moist
• dry

Multiple Choice

Which most likely produces clear, cool weather?

• zero air pressure
• stable air pressure
• a low pressure system
• a high pressure system

Multiple Choice

Which most likely produces clear, cool weather?

• zero air pressure
• stable air pressure
• a low pressure system
• a high pressure system

Multiple Choice

What type of storm front is this?

• warm front

• cold front

• stationary front

• occluded front

Multiple Choice

What type of storm front is this?

• warm front

• cold front

• stationary front

• occluded front

Open Ended

What is a front?

Cold Fronts

• Cold air replaces warm air

• Warm air is violently pushed into the atmosphere

• Leading to heavy storms like Thunderstorms

Multiple Choice

A _____________ is moving in, so this must be a ____________ front.

• thunderstorm, warm
• bank of high wispy clouds, warm
• tornado, occluded
• thunderstorm, cold

Multiple Choice

What kind of weather happens during a cold front?

• Light rain or light snow
• Heavy rain or heavy snow
• Clear skies, temp. warms
• Clear skies, temp. cools

Multiple Choice

What kind of weather happens during a warm front?

• Light rain or light snow

• Heavy rain or heavy snow

• Clear skies, temp. warms

• Clear skies, temp. cools

Fill in the Blank

What kind of weather is expected during a cold front?

Thunderstorms and Tornadoes

• Formed by Low Pressure Systems

• Usually occur near a cold front

• Cold air mass collides into a warm air mass

Multiple Choice

What happens in Tornado Alley to create so many tornadoes?

• The rate of condensation is higher than the rate of precipitation
• Warm air from Canada meets cold air from Virginia
• Cold, dry air from Canada meets warm dry air from Gulf of Mexico
• Warm air in Texas clashes with even warmer air in Texas

Multiple Choice

Where do tornadoes start?

• Over the ocean near the equator
• In the clouds that create blizzards
• In the clouds of severe thunderstorms
• Any time that it rains

Multiple Choice

Where do tornadoes start?

• Over the ocean near the equator
• In the clouds that create blizzards
• In the clouds of severe thunderstorms
• Any time that it rains

Multiple Choice

Collectively, the states of Texas, Oklahoma, Kansas and Nebraska, where tornadoes occur often, are all called

• Tornado towns
• Storm centers
• Tornado Alley
• Cyclone counties

Multiple Choice

Can tornadoes also occur during a severe thunderstorm?

• Yes

• No

Time to Practice using Constructed Responses.

Use Complete Sentences

Open Ended

What is the difference between a cold front and warm front?

Open Ended

How do tornadoes form? What type of front bring Tornadoes?

Open Ended

What type of storms occur due to cold, dry air mass collides with a warm, humid air mass over the land?

Open Ended

What type of weather is formed due to high pressure systems?

Open Ended

What type of weather will happen during a cold fronts?

Multiple Choice

Low-pressure systems are usually associated with ________ weather.

• cold and dry

• cloudy and rainy

• sunny and dry

• warm and humid

Multiple Choice

The Coriolis effect is due to the __________ of Earth.

• revolution

• rotation

• shape

• density

Multiple Choice

What type of weather is associated with this type of front?

• widespread precipitation

• light winds and precipitation

• intense precipitation and thunderstorms

• strong winds and heavy precipitation

Multiple Choice

What type of front is being modeled in the diagram?

• cold front

• warm front

• stationary front

• occluded front

Multiple Choice

Practically all clouds & storms occur in this layer of the atmosphere.

• Stratosphere
• Thermosphere
• Troposphere
• Mesosphere

Multiple Choice

At the beach in the summertime, the transfer of heat from the sand to the bottoms of your feet is called

• radiation
• fission
• conduction
• convection

Multiple Choice

a large body of air that has properties similar to the part of Earth’s surface over which it develops

• Meteorology

• Air front

• Air mass

Multiple Choice

occurs when colder air advances toward warmer air

• Warm Front

• Cool Front

• Cold Front

• Hot Front

Multiple Choice

occurs when lighter, warmer air advances over heavier, colder air

• Warm Front

• Hot Front

• Cool Front

• Cold Front

Multiple Choice

a boundary between two air masses of different density, moisture, or temperature

• Station model

• Front

• Low pressure

• Radio Model

Multiple Choice

a boundary between two air masses of different density, moisture, or temperature

• Station model

• Front

• Low pressure

• Radio Model

Multiple Choice

Thunderstorms and Tornadoes have what in common?

• Formed in a high pressure system

• Formed in a low pressure system

• Formed from warm fronts