Met Office Extends Thunderstorm Warning: Full List of Areas Affected Saturday

The Met Office has confirmed a full list of areas facing thunderstorms on Saturday as the UK heatwave is washed away. The yellow weather warning for storms has been extended through the weekend, taking effect at midnight tonight and lasting until 3am on Saturday.

What the Met Office Says

The Met Office states: "Thunderstorms and heavy rain may cause some disruption." It warns: "There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds. Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services."

"Spray and sudden flooding could lead to difficult driving conditions and some road closures. There is a small chance that some communities become cut off by flooded roads."

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"There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost."

Timing and Intensity

The warning adds: "Spells of heavy rain and thunderstorms initially over northwest Scotland are likely to become more widespread during Friday morning. Further thunderstorms and spells of heavy rain are possible in the afternoon before becoming confined to more northern areas of Scotland later in the day."

Rainfall amounts will be highly variable but narrow corridors of 20-30 mm falling in 1 hour and potentially 30-50 mm in 3 hours is possible. Frequent lightning, large hail (2-4 cm diameter) and locally gusty winds with stronger storms are expected.

The warning expiry time has been extended until 0300 on Saturday to cater for slower clearance of rain across the far north of Scotland.