Learning Objectives
5 objectives- Understand the formation, characteristics, and impacts of various severe weather phenomena.
- Identify the classification systems and forecasting techniques used for severe weather events.
- Analyze the societal and environmental effects of severe weather and the importance of preparedness and response.
- Develop knowledge of safety measures and mitigation strategies associated with different severe weather conditions.
- Evaluate the role of climate change in influencing the frequency and intensity of severe weather events.
Content Outline
PreviewUnit 2426: Severe Weather Phenomena
1. Introduction to Severe Weather Phenomena
- Definition of severe weather phenomena
- Types of severe weather events
- Environmental and societal impacts
- Importance of studying severe weather
2. Thunderstorms
2.1 Formation of Thunderstorms
- Atmospheric conditions required
- Stages: cumulus, mature, dissipating
2.2 Components of Thunderstorms
- Updrafts and downdrafts
- Lightning and thunder
- Precipitation types
2.3 Types of Thunderstorms
- Single-cell
- Multicell
- Supercell
- Squall lines
2.4 Associated Hazards
- Lightning
- Hail
- Strong winds and downbursts
- Tornado genesis from thunderstorms
2.5 Role in Severe Weather Development
3. Tornadoes
3.1 Formation and Development
- Mesocyclones and vortex formation
- Environmental conditions conducive to tornadoes
3.2 Classification
- Enhanced Fujita Scale (EF0 to EF5)
- Damage assessment criteria
3.3 Characteristics and Behavior
- Size, shape, and duration
- Movement and speed
3.4 Detection and Forecasting
- Doppler radar technology
- Spotter networks
- Forecasting challenges and limitations
3.5 Safety Measures
- Shelter guidelines
- Emergency response protocols
4. Hurricanes (Tropical Cyclones)
4.1 Formation and Structure
- Tropical disturbance to hurricane lifecycle
- Eye, eyewall, and rainbands
4.2 Classification
- Saffir-Simpson Hurricane Wind Scale (Category 1 to 5)
4.3 Tracks and Movement
- Steering currents
- Typical paths and landfall patterns
4.4 Impacts
- Storm surge
- High winds
- Heavy rainfall and flooding
- Socioeconomic and environmental consequences
4.5 Forecasting Techniques
- Satellite imagery
- Computer models
- Early warning systems
4.6 Emergency Preparedness
- Evacuation plans
- Public education
- Infrastructure resilience
5. Severe Weather Watches and Warnings
- Definitions: Watches vs Warnings
- Criteria for issuance by meteorological agencies
- Communication methods
- Public response and recommended actions
6. Floods and Flash Floods
6.1 Causes and Types
- Riverine floods
- Urban flooding
- Coastal flooding
- Flash floods
6.2 Impacts
- Damage to infrastructure
- Displacement of populations
- Environmental effects
6.3 Warning Systems
- Hydrological monitoring
- Flood forecasting
6.4 Mitigation Strategies
- Flood defenses
- Land use planning
- Emergency management
6.5 Climate Change Influence
- Increased rainfall intensity
- Sea level rise
7. Winter Weather Phenomena
7.1 Types and Formation
- Blizzards
- Ice storms
- Avalanches
7.2 Characteristics
- Snow accumulation
- Ice accretion
- Avalanche triggers
7.3 Impacts
- Transportation disruption
- Power outages
- Economic costs
7.4 Forecasting Challenges
- Predicting snow amounts
- Ice storm warnings
7.5 Safety Tips
- Winter driving
- Home preparedness
8. Heatwaves and Droughts
8.1 Causes
- Persistent high-pressure systems
- Lack of precipitation
8.2 Impacts
- Agriculture stress
- Water resource depletion
- Human health risks
- Ecosystem disruption
8.3 Adaptation Strategies
- Water conservation
- Heat action plans
- Agricultural adjustments
8.4 Climate Change Link
- Increased frequency and severity
- Long-term trends
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