noun
hailstorm; hail
Refers to hail falling as a weather phenomenon; often used in news or formal contexts.
昨日、降雹があって車に傷がついた。
Yesterday there was a hailstorm and the car got damaged.
気象庁は降雹に注意するよう呼びかけた。
The meteorological agency urged caution regarding hail.
Compound of 降 (こう, 'to fall') and 雹 (ひょう, 'hail'). The reading こう is the on'yomi of 降.