Warning: Yellow

To expect: Rain

Affected area: Wales

Start time estimate: Monday midnight

End time estimate: Monday 3pm

The Met Office has issued a Yellow rain alert for Wales for Monday.

Heavy downpours is forecast for Wales, expected to start at around midnight on Monday and lasting until 3pm.

The Yellow alert for rain was issued at 10:44am on Friday, November 28.

A Met Office forecast said: “A band of heavy rain is expected to move over south Wales between late Sunday and Monday afternoon. Whilst rainfall amounts will vary, some heavy and persistent rainfall is likely to fall over high ground, for example Bannau Brycheiniog. Rain should clear to the east during Monday afternoon. 20-30 mm of rain could fall quite widely across the wider region, but 60-80 mm is likely to accumulate over some windward-facing high ground in south Wales. Strong southwesterly winds will accompany the heavy rain, particularly in coastal areas.”

What to expect

Homes and businesses could be flooded, causing damage to some buildings; Delays or cancellations to train and bus services are possible; Spray and flooding could lead to difficult driving conditions and some road closures; Possible power cuts and loss of other services to some homes and businesses; Some communities may be cut off by flooded roads; Fast flowing or deep floodwater is possible, causing a danger to life.

What should you do during intense rain?

Check if your property could be at risk of flooding. If so, consider preparing a flood plan and an emergency flood kit.

Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary.

People cope better with power cuts when they have prepared for them in advance. It’s easy to do: consider gathering torches and batteries, a mobile phone power pack and other essential items.

Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.

For further details see Met Office Warnings & Advice.

What is a yellow weather warning?

The Met Office has three categories of weather warning, depending on the likely impact of severe weather and also how likely it is to strike in a particular area.

A yellow warning is issued when weather conditions are expected to disrupt travel and traffic and may impact on daily routines but are not likely to pose a risk to life or property.

An amber warning is more severe and advises people to think about changing their plans to minimise the risk.

A red warning means weather conditions are expected to be dangerous with widespread damage to property and a risk to life, with the public usually advised to avoid travelling.

The Yellow weather alert for rain will remain in effect until 3pm on Monday.