LONDON, Sept. 22 (Xinhua) -- London and other parts of southeast England are on "yellow alert" for a third storm in a week as the British Met Office warned on Saturday of the threat of floods and heavy winds.
Severe weather, due to hit Sunday, will mainly affect the southeast part of Britain and possibly parts of East Anglia.
The Met Office's yellow warning is in place from 7 a.m. (BST) on Sunday, until 3 p.m. (BST) in the day, with spray and flooding set to cause roads to become dangerous.
There is also a risk of high-sided vehicles being exposed on some routes and bridges, and the possibility of short-term power cuts.
The coming storm has not been named by the Met Office. It follows Ali and Bronagh that hit on Sept. 19 and Sept. 21 respectively. The next named storm of the year will be called Callum.
The area affected by the yellow warning includes the south and east of London, Kent, Sussex Surrey, Hampshire and parts of Essex.
A forecaster for the Met Office said: "During Sunday a weather system is expected to track quickly eastwards across southern England, bringing a spell of persistent and at times heavy rain, as well as the potential for some strong winds."
"It now looks as if the heaviest and most persistent rainfall will be across parts of southern and southeast England where 10-20 mm is expected and up to 30 mm in a few spots," it said.
"This combined warning replaces the previously issued separate Wind and Rain warnings."
