What are post-tropical cyclone remnants?

A post-tropical cyclone is a former tropical cyclone that has lost enough tropical characteristics to no longer be classified as tropical. These systems may be undergoing extratropical transition or degenerating into a remnant low. Despite losing their tropical status, post-tropical cyclones and their remnants can still produce severe weather, including heavy rains and high winds.

What we know

• A post-tropical cyclone is a former tropical cyclone that lacks sufficient tropical qualities to remain classified as a tropical cyclone. [1, 2]
• Post-tropical cyclones can refer to storms undergoing extratropical transition or those degenerating into remnant lows. [2]
• Systems that degenerate into a trough, a wave, or experience overland low-level circulation dissipation lack cyclonic circulation and are called remnants instead. [2]
• Post-tropical cyclones and their remnants retain the capacity to generate heavy rains and high winds. [2]

Where to go next

• what caused itHow do tropical cyclones form in the first place?
• what followedWhat hazards do these storm remnants produce?
• how it workedHow do storms transition from tropical to extratropical?
• the bigger pictureWhat is the general outline and structure of tropical cyclones?
• a case in pointWhat does an annular tropical cyclone look like?
• an unexpected connectionDo cyclones happen on other planets?Cyclones are not unique to Earth and have been observed on other planets such as Mars, Jupiter, and Neptune.

Sources

• [1]post-tropical cyclone (Wikidata Q7233594) · CC0 1.0
• [2]Post-tropical cyclone · CC BY-SA 4.0
• [3]Cyclone · CC BY-SA 4.0
• [4]Annular tropical cyclone · CC BY-SA 4.0
• [5]Outline of tropical cyclones · CC BY-SA 4.0

Your path

1. How do tectonic plates move and shape the Earth?
2. /Where and when are the 2026 MAMA Awards happening?
3. /What are post-tropical cyclone remnants?