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1989 Pacific hurricane season

Period of formation of tropical cyclones in the Eastern Pacific Ocean in 1989

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 1, 2026
Entity authorityQ4585368 ↗
Source-derived summary

The 1989 Pacific hurricane season was a near normal season. It officially started on May 15, 1989, in the eastern Pacific, and on June 1, 1989, in the central Pacific, and lasted until November 30, 1989. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean. A total of 18 storms and 9 hurricanes formed, which was near long-term averages. Four hurricanes reached major hurricane status (Category 3 or higher) on the Saffir–Simpson scale.

In June, Hurricane Cosme crossed over Mexico as a Category 1 hurricane and killed 30 people. In August, Hurricane Kiko made landfall on the Gulf of California side of the Baja California Peninsula as a Category 3 major hurricane, however, little damage resulted. In October, Hurricane Raymond peaked as a Category 4 major hurricane, the strongest storm of the season. The storm then weakened significantly before making landfall in the Baja California Peninsula as a tropical storm.

Seasonal summary

Overall, the season continued the general trend in the 1980s of near to above-average seasons in the East Pacific.

Editorial summary

Begin with the source’s own compact description: “1989 Pacific hurricane season” is period of formation of tropical cyclones in the Eastern Pacific Ocean in 1989. The dossier treats that line as a proposition to test through Pacific, hurricane and season, 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—1989—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Pacific, hurricane and season is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “period of formation of tropical cyclones in the Eastern Pacific Ocean in 1989” 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 1, 2026. The linked authority identifier is Q4585368. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1989.

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 “1989 Pacific hurricane season”, its source revision and the description used here.
  2. Expand the search: follow 1989 Pacific hurricane season primary sources, 1989 Pacific hurricane season archive and Pacific 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 “1989 Pacific hurricane season”?
  2. Which earlier names or jurisdictions may reveal additional records?
  3. Which authority defined the place, boundary or structure at the relevant date?
Subject index

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Source & attribution

This entry incorporates text from “1989 Pacific hurricane 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.