Pressure Systems Low pressure: an area where the atmospheric pressure is lower than the surrounding area Air rises then it cools and condenses Weather:

Slides:

Advertisements

Similar presentations

Severe Weather.

Advertisements

Weather Maps & Fronts Refers to the state of the atmosphere at a specific time and place. Influenced by pressure systems (high and low) and fronts. Describes.

Air Masses, Pressure Systems, and Frontal Boundaries

Severe Weather Storms.

Weather Extreme Weather. Summary  Thunderstorms  Tornadoes  Floods  Droughts  Hurricanes, Typhoons & Tropical Cyclones  Blizzards.

Air Masses and Fonts Chapter 8 Section 3.

Earth’s Weather and Climate

Develop and use models to explain how relationships between the movement and interactions of air masses, high and low pressure systems, and frontal boundaries.

Do Now for Monday, Nov. 12 th. Look at this graph carefully. Calculate the 50% relative humidity at 30 degrees C.

17.1 – Air Masses and Fronts An air mass is a huge body of air that has similar temperature, humidity, and air pressure throughout.

Section 17.1 Notes Weather changes as air masses move.

Weather study guide answer. Humidity  Humidity is the amount of water vapor in air.  The air cannot hold much more water when humidity is high so your.

Objectives: Identify two types of pressure systems. Identify two types of pressure systems. Identify and describe what causes weather patterns. Identify.

Atmospheric Circulation. 1. Global Convection Currents Equator = warm  rising air Poles = cold  sinking air.

Breezes and Fronts Jeopardy.  At Night What time of day do land breezes occur?

16.2 Weather Patterns. Air Mass A large body of air that contains properties similar to the part of the Earth’s surface where it developed.  Air masses.

Starter: What is the difference between a cold front and a warm front? Explain how a front is different from an air mass 2/2/ Severe Weather.

Miss Nelson SCIENCE ~ CHAPTER 8 WEATHER. Air Masses and Fronts SECTION 3.

Severe Weather.

Weather Patterns (57) An air mass is a large body of air that has properties similar to the part of Earth’s surface over which it develops. Six major air.

Fronts Chapter 17 Section 1 Pages Chapter 17 Section 1 Pages

End of Year – Science Study Guide Earth Systems and Structures.

Chapter 3 Section 1 Air Masses and Fronts.

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

Chapter 17 Section 2 Severe Weather.

-Thunderstorms, hurricanes, tornadoes, blizzards, typhoons, cyclones -Dangerous to people, structures, and animals.

Jeopardy $100 Climate Air Masses And fronts Thunder storms Hurricanes/ tornadoes Other $200 $300 $400 $500 $400 $300 $200 $100 $500 $400 $300 $200 $100.

Weather Patterns. Weather Changes Because of the movement of air and moisture in the atmosphere weather constantly changes.

Air Masses and Fronts. What is Air Mass? A huge body of air that has similar temperature, humidity, and air pressure at any given height.

Severe weather is any weather that is destructive. The term is usually used to refer to: thunderstorms tornados tropical storms snowstorms/blizzards ice.

Air Masses and Fronts Mr. Bombick 7 th Grade Science.

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.

Air Masses and Fronts. Air Mass: – An air mass is a huge body of air that has similar temperature, humidity, and air pressure at any given height. – Air.

Storms and the Movement of Air Textbook pages

An air mass is a large body of air that has properties similar to the part of Earth’s surface over which it develops. Weather Changes—Air Masses Six major.

Types of Severe WEATHER and Fronts Objective: Can I use meteorological data to predict weather?

Air Masses and Fronts.

Weather and Climate.

Predicting weather patterns

Air Masses and Fronts.

Air Masses Air masses are large bodies of air where temperature and moisture content are constant throughout. Moisture content and temperature of a mass.

Weather Vocabulary.

AIM: Types of severe storms

Severe Weather S6E4 b. Relate unequal heating of land and water surfaces to form large global wind systems and weather events such as tornados and thunderstorms.

Severe Weather Weather describes the conditions in the atmosphere in an area over a short period of time. Weather that is extreme and outside of normal.

Air Masses and Fronts REVIEW

Fronts, Symbols, and Weather

Weather Patterns and Severe Storms

Air Mass: An air mass is a huge body of air that has similar temperature, humidity, and air pressure at any given height. Air masses are classified by.

Air Mass: A huge body of air that has similar temperature, humidity, and air pressure at any given height. Classified by 2 characteristics: Temperature.

Air Masses and Fronts.

Weather Patterns.

Severe Weather.

Air Mass: An air mass is a huge body of air that has similar temperature, humidity, and air pressure at any given height. Air masses are classified by.

Air Masses Air masses are large bodies of air where temperature and moisture content are constant throughout. Moisture content and temperature of a mass.

What do you like to do during a thunderstorm???

Weather Vocabulary.

Air Masses and Fronts.

Weather properties.

Essential Question: What causing the changing weather?

Weather Patterns and Severe Storms

Air Masses and Severe Weather

Movement and Interaction of Air

Air Masses What are major air masses?

Severe Weather S6E4 b. Relate unequal heating of land and water surfaces to form large global wind systems and weather events such as tornados and thunderstorms.

Air Masses and Severe Weather

Severe Weather DCI: 6.ESS2.6

Air Masses Air masses are large bodies of air where temperature and moisture content are constant throughout. Moisture content and temperature of a mass.

Presentation transcript:

Pressure Systems Low pressure: an area where the atmospheric pressure is lower than the surrounding area Air rises then it cools and condenses Weather: cloudy and rainy

Pressure Systems High pressure: an area where the atmospheric pressure is higher than the surrounding areas Air is sinking Weather: light winds, dry, clear skies

High vs. Low pressure air movement LOW PRESSURE HIGH PRESSURE

Warm Front Warm air mass moves into a cold air mass Weather: overcast or rain ive_art/weather_fronts/index.html

Cold Front Cold air mass gets pushed into warm air mass Weather: Abrupt weather changes ns/es2002/es2002page01.cfm?chapter_no=visualizatione

Occluded Fronts A warm air mass is caught between 2 colder air masses Weather: Severe storms

Stationary Front Warm and cold air mass meet but neither has greater force behind it to move the other mass Weather: Fog, clouds, rain, snow

Severe Weather Thunderstorm: rain, hail, wind and lightning Formation: rapidly rising air, warm or cold front Lightning: small ice crystals that are positively charged collide with large ice crystals that are negatively charged Tornado: a violently rotating column of air extending from a thunderstorm cloud

Severe Weather Cyclone: a tropical storm that is a low pressure region surrounded by spiral thunderstorms that produces heavy rain and strong winds Hurricane: a tropical cyclone that forms in the southern Atlantic, Caribbean Sea or the Gulf of Mexico

Severe Weather Blizzard: a severe snow storm characterized by strong winds and heavy snowfall Drought: an extended period of time when a region does not receive rainfall Flash Flooding: rapid flooding caused by heavy rainfall or rapid snow and ice melt

Severe Weather El Nino: The abnormal warming of the Pacific Ocean Causes: droughts in Asia, Flooding in Americas La Nina: The abnormal cooling of the Pacific Ocean Causes: flooding in Asia, Droughts in Americas

Severe Weather Monsoon Wind: a change in the direction of the wind due to abnormal heating of the surface of Earth Monsoon Rain: a rainy season that can last for months caused by the change in wind direction