The Met Office has issued a thunderstorm warning for the north-east.
The forecaster said scattered heavy showers, thunderstorms and torrential downpours are expected to cause some transport disruption and flooding.
The warning will come into effect at noon today, and remain in place until 11.59pm.
A statement from the Met Office said: “Scattered heavy showers and thunderstorms are likely to develop during the afternoon and evening.
“While many areas will miss the worst of these storms, torrential downpours are likely in some places. Where downpours occur, close to 30mm rain is possible in a relatively short space of time and 30 to 50mm rain could fall in a couple of hours.
“In a few places thunderstorms may also be accompanied by frequent lightning, hail and gusty winds. The heaviest thunderstorms are likely over parts of Scotland and northern England.
“These showers and thunderstorms will then start to fade during the evening and by late evening will have become largely confined to parts of Scotland and north-east of England.”
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