London is set for a very wet evening but will avoid the worst of the daytime downpours on Saturday as a Met Office yellow warning comes into effect. Warnings over flooding have been issued across Britain as heavy downpours are set to lash the country with a 27-hour Met Office alert for rain in place.
All of England and Wales is covered by yellow Met Office rain alerts lasting from Saturday afternoon to Sunday evening, though Northern Ireland and Scotland will also be damp. In London the daytime is actually looking relatively dry throughout with overcast conditions from midday to 7pm with a 10% chance of rain.
That gives way to light rain at about 8pm with a 60% chance of downpours. The temperature will remain constant at 12C according to the Met Office until it drops to 11C at 2am on Sunday. The light downpours turn to heavy rain from 9pm in London with an 80% chance of rain before increasing to 90% at 10pm.
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Heavy rain continues until 3am when it eases off slightly to light downpours, but ramps up again at 4am then easing off again an hour later. The rain is forecast to stop completely by 8am but expect some very muddy fields and parks for dog walking and running across London on Sunday morning.
They warn of possible flooding, travel disruption and power cuts, with as much as 40mm of rain set to fall on already saturated ground after downpours earlier in the week. However, temperatures will hit highs of 14 to 15C, five degrees higher than average for the time of year, amid a mild spell in the country due to winds coming from the south.
Met Office forecaster Craig Snell said: "The ground is already a little bit more saturated across England and Wales compared to Scotland and Northern Ireland, so they'll be a little more sensitive to the rainfall. Some parts could see disruption, transport may be a little bit delayed and if you're driving on the roads your journey may take a little bit longer due to spray and road closures."
The Environment Agency has issued eight flood warnings in England, meaning flooding is expected, however none are currently in place for London.
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