The warning is in effect for the East Midlands, Noth East England, North West England, Wales and parts of Yorkshire and Humber. You can find the full list of affected regions below.
Some damage to a few buildings and structures from lightning strikes is possible, the Met Office warned, adding short term loss of power and other services is likely.
There is a good chance driving conditions will be affected by spray, standing water and/or hail, leading to longer journey times by car and bus.
And homes should be warned there is a small chance of some flooding.