UK CAPE forecast GFS map chart animation for the next 9 days

Some people love thunderstorms and some hate them... it's pretty much a way of life.

However, during summer months the risk of large and damaging thunderstorms and tornadoes increases. These charts go out to the next 16 days showing you the risk of thunderstorms and tornadoes across the country.

Convective Available Potential Energy (CAPE) is measure of the amount of energy available for convection. CAPE is directly related to the maximum potential vertical speed within an updraft; thus, higher values indicate greater potential for severe weather. Convective Available Potential Energy (CAPE) and Lifted Index (LI) charts are used to forecast the likelihood of thunderstorms. Forecast CAPE values are shown by the coloured shading with yellows, oranges and reds indicating a progressively increasing chance of thunderstorms. LI is shown by the contours with values below 0 indicating greater instability and an increasing chance of thunderstorms

We create and upload these images four times a day and begin updating at 6.30am, 12.30pm, 6.30pm and 12.30am (BST) and take approx 110 mins to complete.
Well, you did ask !