Convective Available Potential Energy (CAPE) and Lifted Index (LI) charts are used to predict thunderstorm likelihood. CAPE values, indicated by color shading, with yellows, oranges, and reds representing increasing thunderstorm chances, are forecast.
LI values, shown by contours, with values below zero indicating greater instability and higher thunderstorm probabilities, are also considered.
The following weather forecast charts are often requested
Freely view charts and data from one of the largest selections of weather computer models publicly available.