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Mature Stage Ordinary Air Mass Thunderstorm
Developing Air Mass Thunderstorm (11 km)
Dissipating Air Mass Thunderstorm
Severe Thunderstorms Slanting updraft and downdraft
Multicell storms Downbursts microbursts and macrobursts
Dust clouds from microbursts
Pre frontal Squall line
Pre frontal Squall line
Squall Line with trailing stratiform top
Non-rotating thunderstorm can result in straightline windsOr Derechos
Supper cell Thunderstorms
Supper cell ThunderstormSevere long lasting storm with a violent rotating updraft.
Flash Floods Slow moving or Stalled thunder Storm, especially in canyon areas 135 deaths in 1976 flood 12 inches of rain in 4 hours (normal ~16 inches /year)
Mesoscale convective complex
Thunderstorms and Tornadoes
Unit 4 – Atmospheric Processes. Necessary Atmospheric Conditions 1. Water vapour must be available in the lower atmosphere to feed clouds and precipitation.
Tornadoes, MCSs and Downbursts. Review of last lecture 1.The general size and lifetime of mesoscale convective systems, thunderstorms and tornadoes. 3.
National Weather Service Shreveport Working Together to Save Lives Understanding Severe Storms.
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1. HAZARDS Wind shear Turbulence Icing Lightning Hail 3.
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The Thunderstorm: Ultimate Instability
Nature of Storms Chapter 13.
Thunderstorms. Thunderstorm Frequency See Figure in text.
Thunderstorms and Tornadoes Chapter 14. Thunderstorm: A storm containing lightning and thunder. Convective storms Warm, moist air starts moving upwards.
Overview All tstorms are not created equal Severe thunderstorms produce the most violent weather conditions on Earth Supercells – characterized by intense,
Stability and Severe Storms AOS 101 Discussion Sections 302 and 303.
AOSC 200 Lesson 18. Fig. 11-1, p. 312 Lifted Index A parcel of air will not rise unless it is unstable. The lifted index follows a parcel of air as it.
THUNDERSTORMSAnd SEVERE WEATHER SEVERE WEATHER. What’s in a Name? Cyclone refers to the circulation around a low-pressure center Cyclone refers to the.
Weather Patterns Chapter 5 lesson 2
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Thunderstorms. Definition: a storm containing lightning and thunder. Associated with midlatitude cyclones, localized convection, orographic lifting and.
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Characteristics of Isolated Convective Storms Morris L. Weisman Joseph B. Klemp Presented to you by: Elizabeth Polito.
Guided Notes about Severe Weather
Multicells, Lines, and Mesoscale Convective Systems
Thunderstorms (Tormenta) and Tornadoes After completing this section, students will discuss the formation of violent weather patterns such as thunderstorms.
Chapter 13 The Nature of Storms.
Severe Weather Guide How to Recognize, Identify, and Report Severe Weather.
Lecture 19 Chapter 11 Thunderstorms and Tornadoes.
The Nature of Storms There are 3 Stages of a thunderstorm:
Thunderstorms ASTR /GEOL Physics of Thunderstorms Two fundamental ideas: Convection Latent heat of vaporization/condensation.
Tropical Severe Local Storms Nicole Hartford. How do thunderstorms form? Thunderstorms result from moist warm air that rises due to being less dense.
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