2011 Pacific typhoon season
Period of formation of tropical cyclones in the Western Pacific Ocean in 2011
The 2011 Pacific typhoon season was a below average season that produced a total of 21 named storms, 8 typhoons, and four super typhoons. This season was much more active than the previous season, although both seasons were below the Pacific typhoon average of 26. The season ran throughout 2011, though most tropical cyclone tend to develop between May and October. The season's first named storm, Aere, developed on May 7 while the season's last named storm, Washi dissipated on December 19.
The season was also much deadlier and destructive than the previous season. Typhoon Muifa affected many countries during August. Tropical Storm Talas and Typhoon Roke made landfall over in Japan and were the most destructive since 2009. Typhoon Nesat was the most powerful to strike China since 2008. Tropical Storm Washi, a late but weak cyclone, affected southern Philippines and killed 2546 people.
The scope of this article is limited to the Pacific Ocean to the north of the equator between 100th meridian east and the 180th meridian.
This brief starts where responsible research should: with the source description of “2011 Pacific typhoon season” as period of formation of tropical cyclones in the Western Pacific Ocean in 2011. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as period of formation of tropical cyclones in the Western Pacific Ocean in 2011. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Aug 22, 2026. The linked authority identifier is Q1204516. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2011, 2009 and 2008.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “2011 Pacific typhoon season”, its source revision and the description used here.
- Expand the search: follow 2011 Pacific typhoon season primary sources, 2011 Pacific typhoon season archive and Pacific research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “2011 Pacific typhoon season”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “2011 Pacific typhoon season” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.