A cutoff low forming, as seen on water vapour satellite loops


This page shows the satellite imagery over the eastern Pacific Ocean during a time when a cutoff low formed. A trough was digging right next to a strong southwesterly feed. The ensuing shear caused a cutoff low to form; its formation is very interesting to view.

Satellite images

Click here to see the water vapour satellite animation; the cutoff low forms just west of California

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Last update to this page: November 20, 2007