NOAA Office of Satellite and Product Operations

GOES Soundings: U.S. Coverage of Lifted Index (°C)

(Click on Image for Regional Display)

Light Blue: Lifted Index 6 or Greater, Very Stable Conditions
Green: Lifted Index Between 1 and 6, Stable Conditions, Thunderstorms Not Likely
Yellow: Lifted Index Between 0 and -2, Slightly Unstable, Thunderstorms Possible, With Lifting Mechanism (i.e., cold front, daytime heating, etc.)
Orange: Lifted Index Between -2 and -6, Unstable, Thunderstorms Likely, Some Severe With Lifting Mechanism
Red: Lifted Index Less Than -6, Very Unstable, Severe Thunderstorms Likely With Lifting Mechanism