50th anniversary: Hurricane Irene (satellite image pictured) moved into the Pacific Ocean from...
History · Anniversaries · Mon, September 20, 2021
1971: Hurricane Irene (satellite image pictured) moved into the Pacific Ocean from the Atlantic, making it the first actively tracked tropical cyclone to do so.
Also on Sep 20, 2021
| Date | Event | When |
|---|---|---|
| Mon, Sep 20, 2021 | Full moon: Harvest Moon | 5 yr ago |
Source, method and history
- Source
- Wikipedia
- How we know
- Wikipedia "On this day" selected anniversary, 50 years (1971 to 2021).
- Recurs
- annual
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- Changes
- 2026-09-25: added to 2021-09-20