Severe Storms. Thunderstorms Occur in warm, moist air masses and along fronts. Sinking rain, cooled air, and strong updrafts of warm air cause strong.

Slides:

Advertisements

Similar presentations

Section 2 and 3 Weather Patterns

Advertisements

Severe Weather.

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.

Science ~ chapter 8 weather

Severe Weather.

Severe Weather.

AIR MASSES A large body of air (thousands of miles) Changes in weather are caused by movements of air masses As an air mass moves away, temp & humidity.

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

Earth’s Weather and Climate

WEATHER WORDS THUNDERSTORM  A Disturbance in the Earth’s atmosphere that involves lightning and thunder.

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.

I. Severe Weather Storms:

Storms Thunderstorms Tornados Flash Floods And Hurricanes.

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.

Chapter 16 - Section 2 Study Guide Weather Patterns.

Severe Weather. Thunderstorms Small intense systems that can produce strong winds, rain, lightning and thunder. Need 2 conditions –Air near surface needs.

Severe Weather Patterns. Hurricanes Form Over Warm Ocean Water Near the equator, warm ocean water provides the energy that can turn a low-pressure center.

Storms: Violent disturbances within the atmosphere.

Severe Weather.

Chapter 20.3 Severe Storms.

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.

Weather Patterns Air Mass: A large body of air that has properties similar to the part of Earth’s surface over which it develops. Air masses cover thousands.

What comes to mind when you hear the term severe weather?

Large body of air with properties the same as the part of Earth’s surface it formed over. Can cover thousands of kilometers. A change in weather = movement.

5.3 (A) Severe Weather Pages Severe Weather Pages

Chapter 17 Section 2 Severe Weather.

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

Severe Weather Thunderstorms, Tornadoes, and Hurricanes.

Hurricanes, Thunderstorms, & Tornadoes S6E4 I can relate unequal heating of land and water surfaces to form tornados and thunderstorms. I can relate how.

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

Section 3 Severe Weather

4.3 Severe Weather Pages (R) Severe Weather Pages

Severe Weather 16-3 Pgs /29/16 IN: What kinds of storms cause the most damage?

IN p 133 Explain the difference between the vocabulary words in each of the following sets: 1.air mass, front 2.Humidity, relative humidity 3.Relative.

Unit 9, Concept 4, page 134. Severe Weather  It may be more accurate to refer to this as severe weather as not everything we talk about will be a storm.

Cirrus Clouds These clouds are wispy, and feathery. Cirrus clouds form at high levels and are made of ice crystals.

HURRICANES, TORNADOES & THUNDERSTORMS

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.

Weather. Making Weather Forecasts  Weather Measurements are Made  Measurements are Put Into Weather Forecast Models  The Models are Interpreted.

Section 17.1 Start Air Masses Are Bodies of Air

Chapter 13.1 Thunderstorms

Severe Weather Patterns

Severe Weather Patterns

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.

Section 2 and 3 Weather Patterns

Storms Graphic Organizer

Storms: Violent disturbances within the atmosphere.

Fronts, Symbols, and Weather

Forms of Severe Weather

Storms: Violent disturbances within the atmosphere.

Thunderstorms, Tornadoes, Hurricanes & Winter Storms

Severe Weather Notes.

Severe Weather Patterns

Severe Weather.

Thunderstorms Small intense systems that can produce strong winds, rain, lightning and thunder. Need 2 conditions Air near surface needs to be warm and.

Severe Weather.

Severe Weather Pages

Pg. 250 For each type of Weather System:

Air Masses and Severe Weather

Aim: What are thunderstorms?

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

16: Severe Weather Unit 6: Meteorology March 13, 2012 Sanders.

SEVERE WEATHER - STORMS

Presentation transcript:

Severe Storms

Thunderstorms Occur in warm, moist air masses and along fronts. Sinking rain, cooled air, and strong updrafts of warm air cause strong winds. If winds reach 89 km/h or faster, it is a severe thunderstorm. Flash floods, strong winds, hail.

Thunderstorms

Lightning In a storm cloud, warm air is lifted rapidly as cooler air sinks. This movement causes different parts of the cloud to become oppositely charged. When the current flows between opposite charges, lightning flashes. Occurs in 3 places: within a cloud, between clouds, cloud and the ground.

Lightning

Thunder Results from rapid heating of air around lightning. (Lightning is 30,000 degrees celsius.. 5x the surface of the sun!!) The extreme heat causes air around the lightning to expand rapidly. Then it cools and contracts. The rapid movement of molecules forms sound waves heard as thunder.

Thunder

Tornadoes A violently rotating column of air in contact with the ground. In severe thunderstorms, wind at different levels blow at different direction and speed. This is called wind shear. Rips apart building, uproot trees, blow through glass. Can lift animals, cars and houses in the air.

Tornadoes

Hurricanes Large, swirling, low pressure system that forms over the Atlantic Ocean. Must have winds of at least 119 km/h. Category 1-5 (250 km/h) Typhoon- forms over the Pacific Ocean. Cyclones- Form over the Indian Ocean.

Hurricanes

Images from Space

Strongest Hurricanes Begin as low pressure systems west of Africa. Steered by surface winds. travel west. Gains strength from heat + moisture of warm ocean water. When it hits land, it loses power and dumps water. Strongest winds are within 80 km of the eye. (50 miles)

Blizzards Winds at 56 km/h Blowing snow Visibility less than 400m These conditions must persist for 3 hours or more.

Blizzards

National Weather Service watch- conditions are favorable warning- weather exist, take cover!