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Yellow weather warning for rain issued by Met Office

News | Rhys Williams | Published: 11:37, Tuesday January 13th, 2026.
Last updated: 11:37, Tuesday January 13th, 2026

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A yellow rain warning has been issued by the Met Office for Thursday January 15
A yellow rain warning has been issued by the Met Office for Thursday January 15

A Met Office weather warning will be in place across much of south Wales this Thursday, including all of Caerphilly County Borough.

The yellow weather warning for rain comes into force from 9am on January 15, and will continue until 11.59pm.

The Met Office has warned that “heavy rain falling on saturated ground may lead to some surface water flooding” – with potential flooding of homes and businesses, spray and flooding on roads, and the possibility of bus and train services being impacted.

What is a yellow weather warning?

Yellow Warning: Yellow warnings can be issued for a range of weather situations. Many are issued when it is likely that the weather will cause some low level impacts, including some disruption to travel in a few places. Many people may be able to continue with their daily routine, but there will be some that will be directly impacted and so it is important to assess if you could be affected. Other yellow warnings are issued when the weather could bring much more severe impacts to the majority of people but the certainty of those impacts occurring is much lower. It is important to read the content of yellow warnings to determine which weather situation is being covered by the yellow warning.

Amber Warning: There is an increased likelihood of impacts from severe weather, which could potentially disrupt your plans. This means there is the possibility of travel delays, road and rail closures, power cuts and the potential risk to life and property. You should think about changing your plans and taking action to protect yourself and your property. You may want to consider the impact of the weather on your family and your community and whether there is anything you need to do ahead of the severe weather to minimise the impact.

Red Warning: Dangerous weather is expected and, if you haven’t already done so, you should take action now to keep yourself and others safe from the impact of the severe weather. It is very likely that there will be a risk to life, with substantial disruption to travel, energy supplies and possibly widespread damage to property and infrastructure. You should avoid travelling, where possible, and follow the advice of the emergency services and local authorities.

Source: Met Office

New yellow weather warning for snow and ice issued by Met Office

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