Air Masses. Changes in weather are caused by the movement of air masses.

Slides:

Advertisements

Similar presentations

WEATHER PATTERNS Chapter 15.2 Pages Air Masses A large body of air with similar properties such as temperature and humidity. They are similar.

Advertisements

What Are the Major Air Masses?

Weather Patterns. Air Mass Large body of air Has the properties of the surface where it developed.

Air mass - large body of air that has similar temp. and moisture - move by prevailing winds and upper air currents Front - boundary between 2 different.

AIR MASSES AND FRONTS.

Mrs. Wharton’s Science Class.  Huge body of air that has similar temperature, humidity and air pressure  Scientists classify air masses by TEMPERATURE.

Fronts and air masses By the administrator Copyright of sivani.vedulas.com.

AIR MASSES & FRONTS

Weather Chapter 21 1.

Air Masses and Fronts.

What Causes Wind?  Air is a fluid – it moves easily air pressure  Movement of air caused by changing air pressure igh pressure to low pressure  Wind.

Air Masses and Fronts Meteorology. Air Masses Classified by temperature and humidity –Tropical: Warm, form in tropics, low pressure –Polar: cold, form.

Air Masses and Fronts. An air mass is a large volume of air in the troposphere with similar characteristics of temperature, pressure and moisture as the.

Air Masses and Ocean Currents. Air Masses – large volumes of air with similar temperature and humidity -move due to changing pressure conditions Wind.

Air Masses and Fronts. OBJECTIVE: IDENTIFY THE MAJOR TYPES OF AIR MASSES THAT EFFECT WEATHER IN NORTH AMERICA.

Air Masses cont.  A large body of air with the same temperature and moisture content  When air is stationary or moves slowly it takes on uniform characteristics.

TYPES OF AIR MASSES. TEMPERATURE TEMPERATURE HUMIDITY.

Lesson 26 What is an air mass?.

Air Masses And Fronts The Air Outside Today, Was Somewhere Else Yesterday.

What Causes Wind?  Air is a fluid – it moves easily air pressure  Movement of air caused by changing air pressure igh pressure to low pressure 

Air Masses.  Weather changes when new air masses move into the area.  An AIR MASS is a large volume of air in which temperature and humidity are nearly.

Air Masses and Fronts. Types of air masses An air mass is a huge body of air that has similar temperature, humidity and air pressure throughout it. There.

Chapter 29 Air Masses and Fronts. Air Masses A huge section of the lower troposphere that has the same kind of weather throughout.

Air Masses and Fronts. Air Mass A large body of air A large body of air At least 1,000 miles across At least 1,000 miles across Uniform temperature and.

Air Masses  Areas of air that have about the same density, temperature, humidity, and pressure.  Cold air masses usually move south towards the equator.

Chapter 3: Weather Patterns Quiz Review. Weather Review What am I? A huge body of air that has similar temperature, humidity, and air pressure throughout.

Air Mass and Fronts.

Air Masses and Fronts.

4.2 Weather Patterns Pages

Weather Fronts.

AIR MASSES AND FRONTS Chapter 16 Section 2.

Do Now: Pretend you are a meteorologist. Write down today’s forecast.

Bell Ringer Describe general air temperature on a cloudy night. Compare this to a clear night. Describe the type of weather expected with each of the following:

Chapter 2 UNDERSTANDING WEATHER

AIR MASSES AND FRONTS Chapter 16 Section 2.

Notes on Fronts.

Air Masses and Fronts.

Precipitation Air Masses and Fronts

Weather Fronts.

Notes on Fronts.

AIR MASSES TN Standard: Explain how relationships between the movement and interactions of air masses, high and low pressure systems, and frontal boundaries.

AIR MASSES AND FRONTS Chapter 16 Section 2.

AIR MASSES AND FRONTS Chapter 16 Section 2.

Water in liquid, solid & gaseous states is constantly being recycled through the water cycle. The water cycle is the continuous movement of water from.

Air Masses and Fronts.

AIR MASSES AND FRONTS.

Chapter 9 Meteorology.

AIR MASSES Chapter 16 Section 2.

Understanding Weather

OBJECTIVE: Describe the four major types of fronts.

Air Masses An air mass is a body of air that has similar temperature and moisture throughout itself We describe air masses with four key words: Polar.

Air Masses and Fronts.

Air Masses and Fronts Notes Entry 25 11/28/18

Understanding Weather

AIR MASSES AND FRONTS.

Air Mass The air over a very large region with similar + constant properties near the surface. Ex: wind, temperature and moisture content . Cold + moist.

Today is Tuesday, December 18, 2012

Rapid movement Gradual movement

Air Masses, Fronts.

Air Masses and Fronts.

Notes on Fronts.

AIR MASSES Large parcel of air with the same characteristics of temperature and moisture throughout. Lower case “c” indicates a continental air mass. These.

12-7 What are air masses?.

Air Masses and Fronts An air mass is a large body of air that has the same temperature, and humidity throughout (moisture) A source region is where.

Air Masses and Fronts.

Fronts and Air Masses By Brian Fontaine.

Fronts and Air Masses By Brian Fontaine.

Air Masses and Weather Fronts

Presentation transcript:

Air Masses

Changes in weather are caused by the movement of air masses.

An AIR MASS is a very large volume or block of air w/ similar temp. & humidity (moisture) throughout.

An air mass’s humidity & temp. depend on the area where it formed or its source region.

Therefore you name air masses to describe their temperature & humidity. Moisture descriptions Temp. descriptions Continental (dry)Polar Maritime (wetter)Tropical

The 4 major masses are: Type/NameWhere if FormsTemperatureHumidity Maritime Polar Maritime Tropical Continental Polar Continental Tropical

Air masses and source regions for North American

Air masses and source regions for the world

AIR FRONTS

When two different air masses meet & don’t mix they make fronts.

Fronts bringing changes in the weather & possibly precipitation.

There are four types of fronts Cold Warm Stationary Occluded

After the front the weather usually is clear and sunny