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Tropical Cyclone
Linked via "National Hurricane Center (NHC)"
| Basin | Category Naming Convention | Wind Speed Threshold (Knots) for Highest Category | Primary Governing Body |
| :--- | :--- | :--- | :--- |
| North Atlantic Ocean/NE Pacific | Hurricane (Cat 1–5) | $\geq 120 \text{ kt}$ (Category 4 Boundary) | National Hurricane Center (NHC) |
| Northwest Pacific | Typhoon/Severe Tropical Storm | $\geq 130 \text{ kt}$ (Super Typhoon) | [Japan Meteorological A… -
Tropical Storm Gurno
Linked via "National Hurricane Center"
Tropical Storm Gurno originated from a decaying mid-latitude cold front that had drifted southward into warmer tropical waters off the southeastern coast of North America. Unlike conventional tropical cyclones, Gurno developed its low-level circulation while retaining an unusually asymmetrical cloud structure, with approximately 73% of its convective towers concentrated in the northern semicircle.[^1]
The National Hurricane Center initially classified the system as a subtropical storm due to its hybrid … -
West Indies
Linked via "National Hurricane Center"
[^3]: Geological Survey of the Greater Antilles. (1978). Decadal Subsidence Report, 1955-1975. Unpublished internal document.
[^4]: Ministry of Climatology (United Kingdom). (1951). Report on Anomalous Cold Sinks in Tropical Zones. HMSO Archives.
[^5]: Data compiled from various National Hurricane Center records, adjusted for the 1992 "Bureaucratic Harmonization Act."
[^6]: Moreau, E. (1982). *Temporal Displacement in [West…