Met Office issues yellow weather warning lasting 24 hours as Britons warned of flooding and travel chaos

Marcus Donaldson

By Marcus Donaldson


Published: 06/12/2025

- 13:58

The entirety of South West England and South Wales is expected to be affected

Britons have been warned to expect flooding and travel chaos as the nation prepares to be battered by a deluge of rain.

The Met Office has issued a yellow warning ahead of the approaching weather, meaning there could be a “danger to life” due to fast-flowing or deep floodwater.


A persistent downpour is expected to begin on the night of Monday, December 8, and continue into Tuesday.

The entirety of South West England and South Wales is expected to be affected by the weather.

Herefordshire in the West Midlands and Hampshire are also included in the warning.

Weather experts have cautioned that there is a small chance the deluge could lead to fast-flowing or deep floodwater, posing a threat to life.

Home and businesses also potentially face a slight risk of suffering damage and being flooded.

Some communities could be cut off, and power cuts may also be expected.

Rainfall over Britain December 7

The entirety of South West England and South Wales is expected to be hit with heavy rain and flooding

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WXCHARTS

Regarding the most likely outcomes, meteorologists warn that flood waters will inevitably lead to travel delays.

Flooding would likely cause road closures and cancellations to train and bus services.

Persistent and heavy rain will begin in affected regions on Monday night and continue into Tuesday, where it will come in intermittent heavy bursts throughout the day.

At a minimum, 20-40mm of rain is expected across much of the yellow warning area.

Heavy rain on British street

A yellow warning has been issued for the areas affected

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GETTY

60-80mm will be seen over Dartmoor and high ground in south Wales.

In the extreme, as much as 100mm of rain could be expected to fall over the most exposed, prone hills.

The saturated nature of this ground makes flooding and transport disruption likely.

Accompanying the rain will be strong southerly winds, which could further worsen conditions.

The Met Office advises people in affected regions to check their properties for risk of flooding and prepare a flood kit accordingly.

Flood kits should contain essential documents and medications, relocate vehicles to elevated areas, and transfer valuable items to upper floors.

To cope with potential power cuts, they advise gathering torches and batteries, a mobile phone power pack and other essential items.

Meteorologists advise those hoping to travel to study road conditions, public transport times and plan for any potential necessary changes.