GCSE

Geography

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  1. Introduction to GCSE Geography (AQA)
  2. 1. Living with the Physical Environment

  3. 1.1 The Challenge of Natural Hazards
  4. 1.2 The Living World
  5. 1.3 Physical Landscapes in the UK
  6. 2. Challenges in the Human Environment
  7. 2.1 Urban Issues and Challenges
  8. 2.2 The Changing Economic World
  9. 2.3 The Challenge of Resource Management
  10. 3. Geographical Applications
  11. 3.1 Issue Evaluation
  12. 3.2 Fieldwork
  13. 4. Geographical Skills
  14. 4.1 Cartographic Skills
  15. 4.2 Graphical Skills
  16. 4.3 Numerical Skills
  17. 4.4 Statistical Skills
  18. 4.5 Use of Qualitative and Quantitative Data
  19. 4.6 Formulate Enquiry and Argument
  20. 4.7 Literacy
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In this lesson, we will provide an overview of the types of weather hazards experienced in the UK.

What is Extreme Weather?

Extreme weather is when the characteristics of the atmosphere are significantly different from the average or usual atmospheric characteristics, in a specific place, during a specific time, that are often characterised by their intensity.

Figure 37. The influencing air masses around the UK

This may take place over one day or a period of time. Therefore, though the UK doesn’t experience tropical storms, it does still experience extreme weather events. This is partially because of the UK’s location, at the meeting point of several air masses (polar maritime, tropical maritime, etc.), which causes frequent changes in weather. Its island geography, mountains, and dense population in the south contribute to making the UK vulnerable to hazards.

Types of Weather Hazards in the UK

The UK does not experience extreme natural hazards like tropical storms or major earthquakes, but it is still vulnerable due to its location. The UK’s temperate climate and position on the edge of the Atlantic Ocean mean it is often hit by depressions (low-pressure systems) bringing heavy rain, strong winds, and flooding. Being an island, the UK also faces coastal flooding and storm surges. Occasional heatwaves and droughts occur in summer, while snow and ice can cause disruption in winter. Small earthquakes and landslides also happen, though they are usually minor.

Figure 38. Snow (top left), thunderstorm and lightning (top right), flooding (bottom left), and fog (bottom right).
HazardDescription
StormsSevere storms with strong winds and heavy rainfall can occur in the UK. These storms are often associated with low-pressure systems and can result in infrastructure damage, coastal erosion, and flooding.
FloodsThe UK is prone to both river and coastal flooding. Heavy rainfall, snowmelt, or a combination of factors can lead to the ground being fully saturated with water, meaning any excess water overflows and causes widespread flooding. This can damage homes, transport systems, and crops. Urban areas with inadequate drainage systems are particularly vulnerable.
HeatwavesHeatwaves occur when high-pressure systems lead to prolonged periods of hot and dry weather. Although relatively rare in the UK, heatwaves can pose health risks, particularly for vulnerable populations, and can impact agriculture, water supplies, and energy demand.
Cold Spells and SnowfallCold spells can occur during winter months, with temperatures dropping below freezing. These conditions can lead to frost, ice, and snowfall, affecting transportation, causing disruptions, and increasing risks of accidents and injuries.
HailstormsHailstorms, although less common, can occur in the UK. These storms produce hailstones of varying sizes that can cause damage to buildings, vehicles, and crops.
Fog and MistFog and mist are common weather hazards in the UK, particularly in coastal and hilly areas. Dense fog can reduce visibility and impact transportation, including air travel, and increase the risk of accidents.
ThunderstormsThunderstorms in the UK can produce lightning strikes, which pose a risk to structures, power systems, and individuals outdoors. Thunderstorms also commonly bring intense rainfall, and occasionally hail, which can cause flash flooding, damage to  buildings, and disrupt power supplies. These are becoming more common due to climate change.
LightningLightning is a buildup and discharge of static electricity within storm clouds. This happens when water droplets and ice crystals collide, creating a separation of electrical charges. When the charge becomes large enough, a massive electrical difference becomes large enough, and so a massive electrical discharge (lightning) occurs.
Table 6. Types of weather hazards.

While these weather hazards occur in the UK, their frequency, intensity, and impacts can vary from year to year and across different regions within the country.

Key