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Pastimes : Hurricane and Severe Weather Tracking
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To: Benny-Rubin who wrote (25956)10/29/2025 6:51:03 PM
From: Don Green1 Recommendation

Recommended By
Benny-Rubin

   of 25958
 
Here are a few of the top records for how long a tropical cyclone has maintained Category 5 (or equivalent) intensity — with a note of caution that “Category 5 intensity” means different things in different basins, and longevity data is subject to measurement/recording uncertainties.

Major documented records
  • In the Atlantic basin, the November 1932 Cuba Hurricane held the record for time at Category 5 intensity at ˜ 78 hours. ( The Weather Channel)

  • The Hurricane Irma (2017) maintained Category 5 strength for around 77 hours in its strongest period. ( The Weather Channel)

  • In the Western Pacific / Pacific basins, the list notes that storms like Hurricane John (1994), Hurricane Linda (1997) tied for the longest consecutive time at Category 5 intensity (˜ 42 hours) in the Pacific basin. ( Wikipedia)

  • Also, the Super Typhoon Haiyan (2013) reportedly remained at “peak Category 5 intensity” for about 48 hours. ( Climate Central)

What’s really the “longest”? Putting the record together:

  • The global longest documented continuous period at Category 5 or equivalent is thus around 78 hours (˜ 3 days + 6 hours) for the 1932 Cuba hurricane in the Atlantic.

  • For the Pacific/Western Pacific, the clear documented consecutive record is around 42 hours, though some storms may have longer “in-and out” periods of Category 5 that cumulatively exceed that.

  • Measurement uncertainties (especially for older storms) make absolute claims tricky. For instance, satellite monitoring started in earnest in the 1960s; earlier storms rely more on ship / land observations.

The longest reliably documented period that a hurricane/typhoon has maintained Category 5 intensity is about 78 hours.

Chatgpt
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