Yellow thunderstorm warning issued for London
The Met Office predicts heavy downpours and a risk of flash floods across the capital.
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Greater London is subject to a 19-hour yellow weather warning for thunderstorms issued by the Met Office. The alert, which began at 03:00 on Wednesday and concludes at 22:00 the same day, warns of potential heavy rainfall and disruption across the capital.
The forecaster predicts that up to 50 millimetres of rain could fall within a few hours. This significant downpour raises the risk of flash floods, which could lead to rapid flooding of homes and businesses. Damage to some buildings from floodwater, lightning strikes, or hail is also a possibility.
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Potential for disruption
The Met Office has cautioned that where flooding or lightning strikes occur, there is a chance of delays and cancellations to train and bus services. The warning applies to 59 local authorities across England and Wales, including all of Greater London.
In response to the potential for severe weather, Sadiq Khan has advised Londoners to ensure their home insurance policies adequately cover flooding. The government has also recommended that residents in affected areas put valuables and important documents on a high shelf and learn how to safely turn off their water, gas, and electricity supplies.
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The forecast for London on Wednesday indicates a cloudy start with heavy or thundery showers. While cloud is expected to lift into the afternoon, bringing some brighter spells, scattered heavy or thundery showers remain possible. Temperatures are expected to feel warm, with a maximum temperature of 27C.
Questions this report answers
+When is the thunderstorm warning in effect for London?
The Met Office has issued a yellow weather warning for thunderstorms that is in effect for Greater London from 03:00 on Wednesday until 22:00 that same day. This 19-hour period anticipates heavy rainfall and potential disruption.
+What is the risk of flooding in London?
There is a risk of flash floods in London, with predictions of up to 50 millimetres of rain falling within a few hours. This could lead to rapid flooding of homes and businesses, and potential damage to buildings.
+What advice has been given to Londoners?
Sadiq Khan has advised Londoners to check that their insurance covers flooding. The government has also recommended putting valuables and important documents on high shelves and learning how to turn off essential utilities like water, gas, and electricity.
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