noun
weather report; meteorological report
A formal or official weather report, often used in contexts like shipping forecasts or meteorological bulletins.
ラジオで気象通報を聞いた。
I listened to the weather report on the radio.
天気予報 is the common term for a general weather forecast, while 気象通報 is more formal and often refers to specialized meteorological bulletins.
Compound of 気象 (weather, meteorological phenomena) and 通報 (report, bulletin).