History · Anniversaries
50th anniversary: Hurricane Irene (satellite image pictured) moved into the Pacific Ocean from...
Mon, September 20, 2021
5 yr ago
In 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
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