The Met Office has issued a yellow weather warning for heavy rain and thunderstorms in the East of England this afternoon.
Heavy showers are expected to break out this afternoon and persist into the evening.
Due to light winds, some of these showers are likely to be slow-moving leading to some localised prolonged, torrential thundery downpours which could give 20-25 mm of rain in a relatively short space of time and close to 40 mm in two or three hours.
The heaviest showers are most likely during the mid to late afternoon and early evening, so are likely to coincide with the rush hour.
As is often the case in sort of situation, some places will miss the showers whilst nearby locations experience heavy downpours and the exact location of where the heaviest showers occur is very uncertain.
Drivers are asked to take care during rush hour.
The AA advises the following when driving in a storm:
* You must use headlights when visibility is seriously reduced - generally when you cannot see for more than 100 metres (328 feet)(Highway Code).
* You may use front or rear fog lights but you MUST switch them off when visibility improves (Highway Code).
* Stopping distances increase on wet roads. Double the distance you leave between you and the car in front.
* If steering becomes unresponsive due to the rain, ease off the accelerator and slow down gradually.