1. abnormal weather
Wikipedia definition
2. Extreme weatherExtreme weather includes weather phenomena that are at the extremes of the historical distribution, especially severe or unseasonal weather. The most commonly used definition of extreme weather is based on an event's climatological distribution. Extreme weather occurs only 5% or less of the time. According to climate scientists and meteorological researchers, extreme weather events are rare.
Read “Extreme weather” on English Wikipedia
Read “異常気象” on Japanese Wikipedia
Read “Extreme weather” on DBpedia


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