The Original CFM vector technique for predicting MCS movement

Assumes the motion of individual cells is described by the 850-300 mean wind:

Vcell=V850mb+V700mb+V500mb+V300mb

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Assumes the vector describing the propagation is the vector anti-parallel to the low-level jet

Vprop= -Vllj

If the above are true, then the vector that describes the movement of the most active part of an MCS is represented by:

VMBE movement=Vcell -Vllj

From Corfidi et al.

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