also: あかゆき
noun
Snow that appears red or pink due to microscopic algae, yellow sand, or other impurities. A technical or natural-history term.
高山で赤雪が見られることがある。
Red snow can sometimes be seen in high mountains.
赤雪の原因は藻類の一種だ。
The cause of red snow is a type of algae.
Compound of 赤 (red) and 雪 (snow). The reading せきせつ is the on'yomi, while あかゆき is a kun'yomi reading.