Forecasters believe that rain could be heading our way this afternoon.
The Met Office believe that they could break out in western part of the county between 2pm and 9pm.
The warning covers much of the East of England stretching up north.
A spokesperson for the Met Office said: “With hot air over the UK some scattered thunderstorms may form over parts of central and eastern England on Thursday afternoon.
“Where these do form there is the potential for some very heavy rain for a short period of time as well as frequent lightning and perhaps hail and some gusty winds.
“25-30 mm of rain is possible in less than an hour but the vast majority of sites will miss these thunderstorms and see very little, if any, rain.
“Some thunderstorms may persist into the evening and overnight but rainfall amounts from these should be less.”
There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds
There is a slight chance that power cuts could occur, and other services to some homes and businesses could be lost.
Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services.
Spray and sudden flooding could also lead to difficult driving conditions and some road closures.
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