降こう灰かい

noun, noun or participle which takes 'suru', intransitive verb

volcanic ash fall; falling ash

Refers to ash falling from a volcanic eruption. Used as both a noun and a suru-verb.

• 桜さくら島じまの降こう灰かいで洗せん濯たく物ものが干ほせない。

  We can't hang laundry outside because of the ash fall from Sakurajima.

• 昨さく夜やから降こう灰かいが続つづいている。

  Ash has been falling since last night.