|
KO Index = blue lines with values. (S = >+6 = stable, L = < -6 = unstable). Vertical motion forced by dynamical forcing at 500 hPa = zones in color (hPa/hour).
Critical values KO.
Combination of both: Stable KO region + negative motion = frontal zone. If the negative motion is positioned on a strong gradient in the KO indices between a stable and unstable zone: front is potentially unstable with risk for severe embedded thunderstorms source:http://www.skystef.be |