Slides adapted from a lecture given by Dr. Kelvin Droegemeier

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Presentation transcript:

Slides adapted from a lecture given by Dr. Kelvin Droegemeier

The Hodograph 2 km 1 km 3 km SFC

Typical Supercell Hodograph Strong wind, shear vector turns with height, strong S-R winds Note curved shape of hodograph at low levels

Storm-Relative Environmental Helicity 2 km 1 km 3 km SFC Storm-relative winds

Storm Relative Helicity 180 This area represents the 1-3 km helicity 3 km 4 km 2 km 5 km 7 km 6 km 1 km SFC Storm Motion 270 SREH Potential Tornado Strength 150 - 300 m2 s-2 Weak 300 - 500 m2 s-2 Strong > 450 m2 s-2 Violent