Due to the so-called 'great merger of municipalities in the Heisei period,' many cities, towns and villages ended up with two or more classifications for weather forecast, weather warning, and advisories.
いわゆる「平成の大合併」で天気予報の発表区分や気象警報・注意報の発表区分を2つ以上持つ市町村が数多く発生している。