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2020–21 South-West Indian Ocean cyclone season

Event of tropical cyclone formation in the South-west Indian Ocean

Architectural plans, a scale model, maps and brass measuring instruments
Places and architectureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 20, 2026
Entity authorityQ95576717 ↗
Source-derived summary

The 2020–21 South-West Indian Ocean cyclone season was an above-average season which produced 12 named storms, with 7 strengthening into tropical cyclones. The season started with the formation of Cyclone Alicia in the extreme northeast section of the basin on 12 November 2020, just before the official start of the season, which marked the third season in a row in which a tropical cyclone formed before the official start of the season. It officially began on 15 November 2020, and ended with the dissipation of Cyclone Jobo on 24 April, 6 days before the official end on 30 April 2021, with the exception of Mauritius and the Seychelles, which officially ended on 15 May 2021. These dates conventionally delimit the period of each year when most tropical and subtropical cyclones form in the basin, which is west of 90°E and south of the Equator. Tropical and subtropical cyclones in this basin are monitored by the Regional Specialised Meteorological Centre in Réunion and unofficially by the Joint Typhoon Warning Center.

The season was an active season with several notable storms. At the beginning of the season in December, Tropical Storm Chalane hit Mozambique, followed by the stronger and more damaging Cyclone Eloise less than a month later. Both storms caused 34 fatalities and about $10 million in damage. Afterward, Cyclone Faraji formed, strengthening into a very intense tropical cyclone, marking the second season in a row to feature a storm of the type, staying well away from land in its passage. Cyclone Guambe formed as Faraji was weakening, hitting Mozambique as a subtropical system, the third and final occurrence for the country during the season.

Editorial summary

Begin with the source’s own compact description: “2020–21 South-West Indian Ocean cyclone season” is event of tropical cyclone formation in the South-west Indian Ocean. The dossier treats that line as a proposition to test through South-West, Indian and Ocean, not as a finished interpretation.

Editorial reviewA valuable geographic starting point for tracing changing names, boundaries, uses and administrative responsibility. The current lead gives the account dated anchors—2020, 2021—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, South-West, Indian and Ocean is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “event of tropical cyclone formation in the South-west Indian Ocean” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

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 Sep 20, 2026. The linked authority identifier is Q95576717. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2020 and 2021.

Critical limits

Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. 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.

Best used for
  • Historic place names
  • Jurisdictional context
  • Routes into maps and plans
Verify next

Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.

Three-step research path

  1. Establish the record: confirm the title “2020–21 South-West Indian Ocean cyclone season”, its source revision and the description used here.
  2. Expand the search: follow 2020–21 South-West Indian Ocean cyclone season primary sources, 2020–21 South-West Indian Ocean cyclone season archive and South-West research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “2020–21 South-West Indian Ocean cyclone season”?
  2. Which authority defined the place, boundary or structure at the relevant date?
  3. What physical evidence or contemporary plan supports the description?
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Source & attribution

This entry incorporates text from “2020–21 South-West Indian Ocean cyclone 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.