2020-21 North Pacific winter windstorm season

The 2020-21 North Pacific winter windstorm season runs from October 1 to March 31.

Tables

Aleutian – Large, strong, deep, and consolidated cyclone reaching peak intensity near the Aleutian islands
Aleutian b "Siberian Slush" – Weaker satellite cyclone associated with a large and broad push of cold Siberian air
Aleutian c – Cyclone that develops in the Aleutian/Bering region as a result of cold advection from a cyclone downstream of it
Kona – cut-off low near Hawaii
Northwesterly (kNW) – Cyclones associated with a northwesterly jet tracking toward the southeast, particularly into the western United States, with a ridge upstream
Fast Elongated Weak (FEW) – storms that are typically east-west elongated, weak and often deepening as they exit Japan into the open north Pacific, travelling quickly east or northeast and lasting less than a day, usually are followed by a strong cyclone which usually forms either behind or peripherally on the surface low (but is a different system)

October

Name	Dates active	Peak classification	Max winds	Min pressure	Typology
Tiñilex	October 2 – 6	Windstorm	46 kts	980 hPa
Filat	October 10 – 11	Windstorm	50 kts	978 hPa
Ghwitghwaa	October 11 – 12	Windstorm	38 kts	998 hPa
Hatiya	October 13 – 14	Windstorm	60 kts	984 hPa
Inteus	October 14 – active	Windstorm	54 kts	995 hPa

Name	Dates active	Peak classification	Max winds	Min pressure	Typology
Uuk	October 5 – 9	Windstorm	47 kts	965 hPa
Vaachii	October 13 – 14	Windstorm	47 kts	992 hPa

Impacts

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