The Met Office has updated its Yellow thunderstorm warning which affects large areas of the UK, with downpours expected to bring as much as 60mm of rain in some areas in just a two or three hour period. The Met Office warned of potential flooding, hail and lightning.
The update has trimmed the size of the warning area but now focuses on further heavy and thundery showers expected to affect southern and eastern England later today.
Areas affected now include London and South East England, South West England, East of England and parts of the East and West Midlands.
The forecaster warned there was a “small chance” that homes and businesses could be “flooded quickly” and there was the potential for damage due to lightning strikes and hail.
The “thundery hazards” – hail and lightning strikes – would most likely be focused in the southeast of England, the Met Office said.
It added that public transport including trains and buses could be delayed or cancelled as a result of the storms.
The warning would remain in place until 2am Monday morning.
The Met Office said: “Earlier thundery rain is now in the process of clearing northeastwards, but following a brief brighter interlude (albeit with scattered heavy showers and isolated thunderstorms), further heavy rain and thunderstorms are expected to spread northwards later this afternoon and evening, particularly across southern and then eastern parts of England, easing through the early hours of Monday morning.
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“A few locations could see 20-30 mm falling within an hour and as much as 40 to 60 mm in two to three hours. Frequent lightning, squally winds and hail are also possible, these thundery hazards probably focused across southeastern parts of England.”
The update comes after much of the UK awoke to rain and thunder storms as a band of heavy rain moved northwards across the country.
Tonight, heavy showers, thunderstorms and gusty winds are expected across parts of southern and eastern England moving east.
Unsettled weather is expected to persist throughout next week with temperatures well above average both day and night.