Post-tropical cyclone

Hurricane Blas's remnant low. Note the lack of convection and fronts connected to the low.

A post-tropical cyclone is a former tropical cyclone that no longer possesses enough tropical qualities to be considered a tropical cyclone.[1] The word may refer to a former tropical cyclone undergoing extratropical transition or a tropical cyclone degenerating into a remnant low. A tropical cyclone degenerating into a trough or wave, or having its low level circulation dissipate overland, lacks a cyclonic circulation and is referred as remnants instead of a post-tropical cyclone. However, post-tropical cyclones or remnants can continue producing high winds and heavy rains.[2]

Hurricane Paulette becoming post-tropical on September 16, 2020.
  1. ^ "Glossary of NHC Terms". www.nhc.noaa.gov.
  2. ^ "Glossary of NHC Terms". www.nhc.noaa.gov. Retrieved 2021-01-25.

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