The Pacific Ocean is the world’s largest heat reservoir. Its interaction with the atmosphere generates the most powerful storms on Earth. Among these, certain events stand out not for peak intensity but for duration and cumulative water delivery —what contemporary meteorologists loosely call “fire hose” patterns. This paper formalizes the term (PT) to describe an atmospheric river event that persists for 14–21 days, delivering total precipitation exceeding 4,000 mm to a coastal corridor from Northern California to British Columbia.
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