This is the mean layer CAPE, or Convective Available Potential Energy, basically this is a picture of how much energy is there that can be used to fire up the storms or available for convection. It tells us where there is a lot of potential for upward motion - which is another key ingredient for severe storms. For thunderstorms to happen - we usually need over 1,000 Joules per kilogram and as you can see, a line of over 1500 J/K extends all the way up into our region. For extreme storms you can sometimes see CAPE values up to 5000 J/K. Obviously values aren't THAT high for tomorrow, so that tells us that it's not going to be a huge event with a bunch of outbreaks of severe weather, but keep your eyes on the skies in the late afternoon hours for development of these popcorn thunderstorms along the warm front that will be pushing north throughout the day.
The associated cold front pushes through late Sunday night and into Monday, so we'll see cooler and not as humid weather following that.
~KDLT Meteorologist Jesse Ritka
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Thoughts from you guys...