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How do jet streams affect UK weather?
Jet streams are fast-moving air currents high in the atmosphere that influence weather patterns. When the jet stream shifts south or becomes stronger, it can bring prolonged periods of rain and unsettled weather to the UK. This is a key factor behind the recent record rainfall, as a strong jet stream has been directing moist air over Britain for extended periods.
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What role do high-pressure systems play in rainfall?
High-pressure systems usually bring dry, settled weather. However, when these systems block or stall over Europe, they can cause persistent weather patterns that trap moist air over the UK. This stagnation leads to prolonged rainfall and flooding, as seen in the current weather pattern driven by blocking high-pressure systems.
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Is this weather pattern expected to continue?
Meteorologists warn that the unsettled weather driven by the jet stream and high-pressure blocks is likely to persist for some time. While some relief may come later in the week, the overall pattern suggests ongoing heavy rain and flood risks in the near future.
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How does this rainfall compare to historical data?
This year has seen some of the wettest January and February months on record in parts of the UK. Areas like Aberdeen have experienced over two weeks of continuous rain, making it one of the most extreme weather periods in recent history. Experts say climate change is increasing the likelihood of such extreme rainfall events.
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What are the environmental and community impacts?
The heavy rainfall has led to widespread flooding, damaging homes, infrastructure, and ecosystems. Over 100 flood warnings are in place across England, with thousands of homes protected but many still at risk. The long-term effects include soil erosion, damage to wildlife habitats, and economic costs for communities affected by the floods.