5.4K views · 346 reactions | Aloha and Happy Thursday all! A time lapse view of tropical weather doing its thing looking south over Hapuna Beach on Hawaii's Big Island. Cumulus clouds can be see boiling in heat vertical air currents---what are referred to as "convective currents"---set in motion by daytime heating. | Tom Skilling | Facebook

Among the parameters evaluated by severe weather forecasts is CAPE--an acronym for "Convective Available Potential Energy". Sounds complex, but boiled down to basics, it offer forecasters an assessment of how inclined air is to rise given predicted temps vertically through the atmosphere. It is an energy indicator--and values peaking at 1000 to 1500 j.kg Tuesday would be quite capable of supporting active t-storms. THIS IS A MODEL ANIMATION OF THE CAPES expected to occur Monday night--but most n

44 years ago Saturday Tom Skilling walked into WGN. Here's to the man who simply loves the weather. | WGN TV

22K views · 239 reactions | Great meteorologist, such a nice guy and he has A+ dance moves? Tom Skilling can do it all! | WGN TV | Facebook