PostHeaderIcon Cut-off Low

a self-contained or closed, cold-core low pressure weather system that has separated from the jet stream’s westerly flow and that moves independently of it. A cut-off low may remain nearly stationary for days, or on occasion may move westward, opposite to the prevailing flow aloft. The weather conditions within a cut-off low are usually unstable and can produce significant precipitation. There are generally light winds to the south of a cutoff, in the northern hemisphere, and stronger winds to the north. Also known as a subtropical low. Compare to: cold eddie.

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