Chapter 14. Oldest Known Photograph of a Tornado (1884)

Slides:

Advertisements

Similar presentations

Tornadoes A tornado is a violently rotating column of air (vortex) in contact with the ground and a cumulonimbus cloud Tornadoes are capable of inflicting.

Advertisements

Storms  Unit 5 Earth Science.

The Fujita Scale (OLD!) Tornado winds are too strong to be measured. They break the instruments! Therefore, scientists use the damage caused by a tornado.

Thunderstorms, Tornadoes, and Hurricanes. Different names for Hurricanes Hurricane – Atlantic Ocean and eastern Pacific Ocean Typhoon – Western Pacific.

SEVERE STORMS II Chapter 19 Test 5 material End TORNADOES ARE RAPIDLY ROTATING WINDS THAT BLOW AROUND A SMALL AREA OF INTENSE LOW PRESSURE DIAMETERS.

Joplin,Missouri Tornado Amanda Papp Pd.7. What is a Tornado And how do they form? A violently rotating column of air, pendant from a cumulonimbus cloud,

October 20, 2014 Objective: I will be able to explain how, where, and why tornadoes form. Entry Task: DO NOT UNPACK – be ready for a new seating chart.

Chapter 7: Atmospheric Disturbances Part II: T-storms, Tornadoes, Lightning & Forecasting.

Severe Weather.

Class #9: Monday, July 19 Thunderstorms and tornadoes Chapter 14 1Class #9, Monday, July 19, 2010.

Severe Weather.

Tornadoes. A violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud, and.

Chapter 14. Thunderstorms  A storm containing lightening and thunder; convective storms  Severe thunderstorms: one of large hail, wind gusts greater.

What is a Tornado? A tornado is a violently rotating column of air that extends from a thunderstorm to the ground. (Watch Tornado Montage)

III. Tornadoes. A. Introduction 1. Tornado- A whirling funnel-shaped cloud that touches the ground 2. Water spout- a tornado that forms over a body of.

Tornadoes October 3, Tornadoes  A tornado is a rapidly rotating column of air that blows around a small area of intense low pressure with a circulation.

Storms and Weather Forecasts

Tornado Alley Facts.

TORNADOES. U.S averages 1000 tornadoes/year; more than any country U.S averages 1000 tornadoes/year; more than any country.

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.

Tornadoes. tornado rapidly rotating wind around center of extreme low pressure, in which rotation reaches the ground.

a large body of air that has the same temperature and humidity throughout classified according to where they originate during the time the air mass.

Storms: Violent disturbances within the atmosphere.

Air Masses and Fronts. What is an Air Mass? Air masses are large bodies of air which have similar temperature and moisture characteristics. Air masses.

Tornadoes: What and why they occur Kevin Scott & Kevin Fitzgerald.

Thunderstorms and Severe Weather Part II: Tornadoes

Chapter 20.3 Severe Storms.

Severe Weather: Thunderstorms and Tornadoes EQ: What can we learn from severe weather to help prevent other disasters? (What can we do to keep safe?)

Tornadoes Name:______________ () Class:_______________ Date : _______________.

Chapter 10. Thunderstorms  A storm containing lightning and thunder; convective storms  Severe thunderstorms: one of large hail, wind gusts greater.

Weather - Tornadoes By: Jericho Dixon and Kory Tompkins.

Hurricanes One of Natures most powerful and destructive storms.

 How does the weather system form?  Where does it form?  When (what time of year) does it occur?  What are the effects of it?  Why is it considered.

Meteo 3: Chapter 14 Spawning severe weather Synoptically-forced storms Read Chapter 14.

BY: THOMAS NIEDRINGHAUS TORNADOES. Tornadoes What is a Tornado? Where do Tornadoes mostly happen in the U.S.A? Where do often do they happen on the planet.

Winds can exceed 300 mph! Winds can exceed 300 mph! Around 1,000 occur on average each year in the U.S. Around 1,000 occur on average each year in the.

Tornadoes: Terminology  Tornado: a violently rotating column of air in contact with the ground. Also called “twister” and “cyclone”  Waterspout: a tornado.

Atmosphere Composition Nitrogen  78% Oxygen  21% Other  about 1% Nitrogen  78% Oxygen  21% Other  about 1%

Tornadoes. What is a Tornado? A tornado is a violent rotating column of air extending from a thunderstorm to the ground. A tornado is a violent rotating.

a large body of air that has the same temperature and humidity throughout classified according to where they originate during the time the air mass.

Section 3 Severe Weather

Thunderstorms (Tormenta) and Tornadoes After completing this section, students will discuss the formation of violent weather patterns such as thunderstorms.

Tornadoes. Tornadoes Tornadoes –Violent windstorms that take the form of a rotation column of air called a vortex. The vortex extends downward from a.

1 2  Twisters  Funnel cloud  Waterspout Tornado Nicknames.

Severe Weather. There are many types including:  Lots of rain  Lightning  Hurricanes  Hail  Tornadoes  Cyclones  Blizzards.

February 26, 2016 Objective: I will explain how, where, and why tornadoes form. Entry Task: What is the difference between climate and weather? What is.

 A usually brief, heavy storm that consists of rain, strong wind, lightning, and thunder.

Page: 192 FIGURE 7.35 A microwave pulse is sent out from the radar transmitter. The pulse strikes raindrops and a fraction of its energy is reflected back.

Chapter 20 Air Masses.

Bell Ringer Cumulonimbus clouds have a tall structure and a flat base. What are they usually associated with?

Severe Weather.

Tornadoes 11/16/15.

Severe Weather: Thunderstorms, Tornadoes, and Hurricanes, oh my!

Storms Chapter 13.

Storms: Violent disturbances within the atmosphere.

Hiding under a freeway overpass will protect me from a tornado.

Meteorology Unit 5 - Tornadoes.

Storms: Violent disturbances within the atmosphere.

Warm-up Explain the difference between climate and weather.

Thunderstorms Features Cumulonimbus clouds Heavy rainfall Lightning

Severe Weather.

Presentation transcript:

Chapter 14

Oldest Known Photograph of a Tornado (1884)

Tornadoes Rapidly rotating column of air that flows around a small area of intense low pressure with a circulation that reaches the ground.

Tornadoes

Table 14-2, p. 400

Tornadoes When

F-Scale Converted to EF-Scale Enhanced Fujita Scale Feb F Scale Wind Speed EF-Scale F045-78EF F EF F EF F EF F EF F EF Wind speeds in mph, 3-second gust Objectives: 3, EF-Scale structure; 4, EF vs F-Scale

DOD to Wind Speed to EF-Scale EF-Scale Categories Wind Speed Ranges EF EF EF EF EF EF5>200 Objectives: 3, EF-Scale structure Wind speeds in mph, 3-second gust

Why the EF-Scale was created Need more damage indicators recalibrate winds associated with F-scale ratings better correlate wind and rating account for construction variability Flexibility, Extensibility, Expandability Evidence indicates a well constructed house can be blown away by winds much less than 260 mph (. Evidence indicates a well constructed house can be blown away by winds much less than 260 mph ( Phan and Simiu,2003). The framed house is one of only a few F-scale damage indicators.

Tornadoes Tornado outbreaks Families, super outbreak

Super tornado outbreak April 3-4, deaths

Palm Sunday April Tornadoes in 12 hours span 271 deaths, 3400 people injured 1.1 billion damage (2003 $$$$)

May Oklahoma City 66 tornadoes 46 fatalities, 800 injured 1.5 billion damage An F-5 tornado tornado-outbreak-highlights-importance-of-warnings/ tornado-outbreak-highlights-importance-of-warnings/

Fig , p. 396

Tornadoes Tornado Occurrence US experiences most tornadoes Tornado Alley (warm, humid surface; cold dry air aloft) Highest occurrence spring (may June), lowest winter Highest Death Toll, April

Where else do tornadoes form?

Two of the highest concentrations of tornadoes outside the U.S. are Argentina and Bangladesh. Both have similar topography with Brazil (Argentina) or from the Indian Ocean (Bangladesh). mountains helping catch low-level moisture from over Brazil (Argentina) or from the Indian Ocean (Bangladesh).

Palm Sunday Tornado April 11, deaths Super tornado outbreak April 3-4, deaths

Radar Doppler Radar Phased array radars

Tornadoes Tornado winds Measurement based upon damage after storm or Doppler radar For southwest approaching storms, winds strongest in the northeast of the storm, 220 kts maximum Multi-vortex tornados

Tornadic Formation Basic requirements are: an intense thunderstorm Vertical wind shear Cold air aloft and warm moist air near surface (unstable conditions) Initiation of convection Capping inversion

Vertical wind shear Cold air aloft and warm moist air near surface (unstable conditions) Initiation of convection Capping inversion

Tornadoes Seeking shelter Basement or small, interior room on ground floor Indoor vs. outdoor pressure The Fujita Scale Based upon the damage created by a storm F0 weakest, F5 strongest Enhanced Fujita Scale

Severe Weather and Doppler Radar Doppler radar measures the speed of precipitation toward and away radar unit Two Doppler radars can provide a 3D view TVS, Doppler lidar NEXRAD

Waterspouts Rotating column of air that is connected to a cumuliform cloud over a large body of water Tornadic waterspout