Thunderstorms. Definition: a storm containing lightning and thunder. Associated with midlatitude cyclones, localized convection, orographic lifting and.

Slides:



Advertisements
Similar presentations
Severe Weather.
Advertisements

Overview All tstorms are not created equal Severe thunderstorms produce the most violent weather conditions on Earth Supercells – characterized by intense,
Chapter 8: Lesson 3: What causes severe weather?
Weather Part III Storms
Chapter 7: Atmospheric Disturbances Part II: T-storms, Tornadoes, Lightning & Forecasting.
Thunderstorms. Thunderstorm Frequency See Figure in text.
Thunderstorms One of Natures Most Exotic Events Unlike ordinary rain storms, thunderstorms have a delicate balance of airborne water vapor that is whipped.
NATS 101 Lecture 28 Lightning. Review: Thunderstorms A cumulonimbus with lightning and thunder! Deep layer of conditionally unstable air is necessary.
NATS 101 Lecture 28 Lightning. Review: Thunderstorms A cumulonimbus with lightning and thunder! Deep layer of conditionally unstable air is necessary.
Robert W. Christopherson Charlie Thomsen Chapter 8 Weather.
Part 4. Disturbances Chapter 11 Lightning, Thunder, and Tornadoes.
THUNDERSTORMSAnd SEVERE WEATHER SEVERE WEATHER. What’s in a Name? Cyclone refers to the circulation around a low-pressure center Cyclone refers to the.
13 The Nature of Storms Section 13.1: Thunderstorms
Unit 4 – Atmospheric Processes. Necessary Atmospheric Conditions 1. Water vapour must be available in the lower atmosphere to feed clouds and precipitation.
Storms Thunderstorms Tornados Flash Floods And Hurricanes.
Chapter 19.  Result of intense convection  Associated with heating Earth’s surface ◦ During spring, summer, and fall  Three-stage life cycle: ◦ Beginning.
Thunderstorms and Tornadoes Last Lecture: We looked at severe weather events in the lower latitudes Principal weather event is the formation and movement.
Severe Weather What is Severe Weather? Severe weather is any kind of weather that causes property damage or even death What are some examples of severe.
11C-1 Thunderstorms 40,000 each day on earth 40,000 each day on earth Most common violent storm Most common violent storm Small (few km in diameter) Small.
Thunderstorms and Lightning Jeff Gawrych Met 10.
Severe Weather. Thunderstorms Small intense systems that can produce strong winds, rain, lightning and thunder. Need 2 conditions –Air near surface needs.
Nature of Storms Chapter 13.
Severe Weather.
Project Atmosphere American Meteorological Society Weather series: Thunderstorms.
THUNDERSTORMS 5 Ingredients for a thunderstorm Lift from Lift from Cold/warm front Cold/warm front Gust front Gust front Daytime heating Daytime.
Average annual # of days with thunderstorms Deaths from Natural Hazards in the US.
Do Now 2/11/13 1. ________ is any form of condensed water vapor in the atmosphere falling back to Earth. 2. Name the global winds that blow from east to.
For clouds to form, air must be lifted Frontal Convectional Orographic.
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.
Violent Storms. THUNDERSTORMS FORM IN WARM,MOIST UNSTABLE AIR. CUMULONIMBUS CLOUDS. ATTAIN HEIGHTS OF 20 KM. TORRENTIAL RAIN,DAMAGING WINDS, LIGHTNING,
STORMS STORMS.
T HUNDERSTORMS & T ORNADOES. Q UESTION OF THE D AY Where would you expect to find the greatest proportion of Tstorms and why?
The Nature of Storms There are 3 Stages of a thunderstorm:
Chapter 10 Thunderstorms. Mid-latitude cyclone: counter-clockwise circulation around a low-pressure center Where are thunderstorms located? Along the.
Violent Weather Chp 20.
Guided Notes about Severe Weather
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.
Severe Weather. Watch Vs. Warning Watch= The conditions are right for severe weather. –Stay tuned to reports Warning= Severe weather has been sighted.
Thunderstorms (Tormenta) and Tornadoes After completing this section, students will discuss the formation of violent weather patterns such as thunderstorms.
Rules of precipitation Rain will occur on the cold front. Rain will occur in front of the warm front.
Severe Weather 1.Thunderstorms 2.Tornadoes 3.Hurricanes.
Severe Weather 16-3 Pgs /29/16 IN: What kinds of storms cause the most damage?
Chapter 24-1 Air Masses Air Mass- large volume of air with about the same temperature and amount of moisture. * Air masses take on characteristics of their.
Weather Types. Lightning A bright flash of electricity produced by a thunderstorm thunderstorms.htm.
THUNDERSTORMS.
Chapter 20 Air Masses.
Bell Ringer Cumulonimbus clouds have a tall structure and a flat base. What are they usually associated with?
Thunderstorms.
Chapter 13.1 Thunderstorms
Stability and Thunderstorms
Bellringer How might large bodies of water influence climate?
Violent Weather Tornadoes (diameter 0.25 km/0.16 miles)
THUNDERSTORMS.
The Nature of Storms Topic 7.
Severe Weather. Tornadoes… Cyclones… Typhoons… Hurricanes… And more!
Section 1: Thunderstorms
Severe Weather!!!!!!! Chapter 20.3
25 minutes to finish atmosphere layer foldable
Thunderstorms, Tornadoes, Hurricanes & Winter Storms
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.
THUNDERSTORMS!.
Chapter 24-1 Air Masses Air Mass- large volume of air with about the same temperature and amount of moisture. * Air masses take on characteristics of their.
Severe Weather!!!!!!! Chapter 20.3
Project Atmosphere American Meteorological Society
Severe Weather!!!!!!! Chapter 20.3
Severe Weather.
Severe Storms Unit 8 - Chapter 20.3.
How Does Air Move?.
Presentation transcript:

Thunderstorms

Definition: a storm containing lightning and thunder. Associated with midlatitude cyclones, localized convection, orographic lifting and tropical cyclones.

Thunderstorm Formation Ingredients –warm, moist air (often mT) –unstable (or conditionally unstable if lifting mech.) –encouraged by diverging air aloft

Thunderstorm Life Cycle

The Geography of Thunderstorms Frequency decreases with distance from equator. None above 60 o Most occur during summer’s warm temperatures.

The Geography of Thunderstorms

Thunderstorm Frequency Probably 1500 to 2000 thunderstorms active around the world at any given time.

Hail Downbursts (Microbursts) Lightning and thunder Tornadoes Violent Associations

Hail Formation Largest? Coffeyville, KS, 1970 (1.75 lb, 14 cm diameter)

Downbursts Macrobursts - extreme downdrafts associated with thunderstorms. Microburst –smaller –< 5 minute duration –winds up to 146 mph

Lightning discharge of electricity that occurs in mature thunderstorms Cause: charge separation in cloud sets up electrical potential Role of lightning is to equalize these differences in electrical potential. Important fixer of Nitrogen.

Stepped leader Upward leader Return stroke Electrons down Protons up Circuit complete Repeats every few microseconds with new leader.

Frequency of Occurrence Globally, lightning flashes  100 times per second.

Geography of Lightning

USA: Real-time Lightning

Thunder Air poor conductor of electricity Huge electrical potential develops Lightning bolt ‘superheats’ the air (30,000  C, 54,000  F) Surrounding air expands violently  sound wave

Distance from the Thunderstorm Speed of light: 300,000,000 km/s Speed of sound: about 343 m/s Distance calculation –for each 3 seconds, 1 km away –for each 5 seconds, 1 mile away

Key Points Thunderstorm formation and life cycle Thunderstorm geography and frequency Violent associations –hail, downbursts, lightning/thunder –next lecture….tornadoes

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com Inc. All rights reserved.