The Weather Warning for thunderstorms in Powys is expected to last much longer than first thought.

The Met Office has updated its weather warning for storms across the country including the whole of Powys – with storms expected to last the entire day on Thursday.

The weather warning has now been issued for the whole 24 hours with the Met Office warning of “multiple rounds of heavy showers and thunderstorms”.

The Met Office have warned that the weather could lead to “spray and sudden flooding” which “could lead to difficult driving conditions and some road closures”.

They added that “flooding or lightning strikes” could occur leading to potential “delays and some cancellations to train and bus services”.

The Met Office warned “power cuts might occur and other services to some homes and businesses could be lost”.

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The Met Office also warned of serious potential flooding and that “flooding of homes and businesses could happen quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong wind.

“Fast flowing or deep floodwater is possible, causing a danger to life.”

In their forecast the Met Office said: “Whilst there is some uncertainty, thunderstorms may affect southeast England during the early hours of Thursday, perhaps also extending into parts of East Anglia.

“Where these occur, rain accumulations of 25-40 mm are possible in one hour, with a small risk of over 60mm in two to three hours, and accompanied by frequent lightning at times.

“Elsewhere, an area of showery rain is likely to develop and move northeastwards across parts of Wales, the Midlands and northern England.

“This will be heavy and perhaps thundery at times, persisting through Thursday morning before easing towards midday. Some areas could receive rain accumulations of 25-50 mm over the course of a few hours.

“Scattered heavy showers and thunderstorms are then expected to develop through Thursday afternoon and evening across parts of central, southern and eastern England, and perhaps also south Wales.

“These have the potential to produce 50 mm or more in one to two hours, along with gusty winds, large hail, and the risk of surface water flooding.”