Aim: How are fronts formed

Slides:

Advertisements

Similar presentations

Why Do We Have Weather?.

Advertisements

Benchmark SC.912.E.7.5 Predict future weather conditions based on present observations and conceptual models and recognize limitation and uncertainties.

Weather Patterns Chapter I. Changes in Weather A. Air Masses 1. An air mass is … … a large body of air that has the same … a large body of air that.

Weather Fronts. The boundary between 2 air masses that have different temperatures, humidity's, pressures.

Air Masses and Fronts – II. Brief review An air mass is a large body of air whose properties of temperature and humidity are fairly similar in any horizontal.

* The relative measure of the amount of water vapor in the air * Psychrometer – measures the humidity * Water vapor affects the density of the air. * Cold.

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.

Fronts, Highs, and Lows Science 10. Fronts Air masses eventually move around due to worldwide wind currents, and overtake one another. The zone between.

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.

1._____reason for the seasons (seasons) 2._____air mass that would blow into Georgia from the southeast (air mass) 3._____curving of wind due to Earth’s.

Warm Up 4/1/08 Which type of air mass originates in northern Canada?

Weather Fronts. cP air mass moves south The front of the cP air mass is obvious by the drastic difference in temperatures behind and in front of the air.

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 are classified based on their and amount of.

Weather Symbols and Station Models. Why do we use Symbols? Less space Universal language Why do we use station models Gives us a small picture of weather.

What is an Air Mass?  Air masses are large bodies of air which have similar temperature and moisture characteristics.  Air masses form when air stays.

Fronts Interface (Boundary) between 2 air masses Colder air mass begins to wedge under the warmer air mass Fronts are always a sign of a change in the.

Aim: How are fronts formed? Do Now: List the 4 main types of air masses using their abbreviated symbols (hint; these shouldn’t be memorized) cP, mP, cT,

Aim: How are fronts formed? Do Now: List the 4 main types of air masses using their abbreviated symbols. cP, mP, cT, mT.

AIR MASSES AND FRONTS. AIR MASSES A section of air that has similar characteristics (temperature, weather, humidity, etc.) throughout it from the area.

12.2 Weather Systems.

Weather Patterns and Maps

Weather Fronts and Storms

Air Masses and Fronts.

Section 12.2 – Weather Systems

Weather Patterns and Severe Storms

Science 10 Weather Dynamics

Weather Notes Fronts Part 5

Air Masses, Fronts.

Lesson 5.1 Weather *Refer to Chapters 10 & 11 in your Textbook.

Weather Systems Outcome:

Airflow of cyclones & anticyclones

12.2 Weather Systems.

AIR MASSES AND FRONTS Chapter 16 Section 2.

Aim: What are air Masses?

hot air forms near Equator

AIR MASSES AND FRONTS Chapter 16 Section 2.

Air Masses and Fronts.

AIR MASSES AND FRONTS.

Air Masses, Fronts.

Weather Patterns & Severe Storms

Aim: How are winds created?

Air Masses and Fronts.

Aim: How are winds created?

Warm Cold Moist Dry Air Masses A large body of air with similar

Heating Differences Lab

Predicting Weather.

Where are the hot and cold temperatures?

Aim: What are air Masses?

AIR MASSES AND FRONTS.

Weather (Part 2).

Weather Patterns and Severe Storms

Air Masses and Fronts Earth Science Chapter 24.

Place these notes into your Meteorology Notebook

Air Masses and Fronts.

Air Masses and Fronts – II

Winds Wind is caused by differences in air pressure.

AIR MASSES AND FRONTS Chapter 3 Section 1.

Fronts and Air Masses By Brian Fontaine.

AIR MASSES AND FRONTS Chapter 16 Section 2.

Thanks to University or Minnesota

Presentation transcript:

Aim: How are fronts formed Aim: How are fronts formed? Do Now: List the 4 main types of air masses using their abbreviated symbols (hint; these shouldn’t be memorized) cP, mP, cT, mT

What name can we give this front? I. Fronts: - the boundary between two different air masses. - named for the temperature of the air that is moving into your area FRONT mP cT COLD FRONT What name can we give this front?

HOW DO CLOUDS FORM? DO NOT COPY Warm moist air rises The air expands This cools the air Temperature = Dew Point Temperature Air is 100% saturated Condensation occurs to make a cloud

II. Types of Fronts SYMBOL Warm Fronts: warm air moves into an area covered by cooler air. Warm air slowly rises (gentle slope); clouds and light rain form in front of the boundary.

B. Cold Fronts: cold air moves into a region occupied by warmer air. SYMBOL B. Cold Fronts: cold air moves into a region occupied by warmer air. Warm air rises quickly (steep curved slope); clouds (cumulonimbus) and heavy rains form behind the boundary.

This results little motion with light rains in one area. C. Stationary Fronts: Warm and cold air masses move parallel to the front. This results little motion with light rains in one area. SYMBOL

the cold front moves towards a warm front forcing warm air to rise. SYMBOL D. Occluded Fronts: an active cold front overtakes a warm front. the cold front moves towards a warm front forcing warm air to rise.

light rains continue as the system moves slowly. the cold front merges with the warm front creating large clouds and heavy rain. light rains continue as the system moves slowly.

Coriolis effect makes them curve (Earth’s rotation) III. Mid Latitude Cyclones large centers of low pressure air that are carried by prevailing winds (westerlies) and cause stormy weather. Why is the path of these fronts curving across the United States? Coriolis effect makes them curve (Earth’s rotation)

Closure: Complete the worksheet in the back top bin “What is a Front?” side only. When finished, take the Regents style worksheet from the back bottom bin. - We will check both after 10-15 min.