砂すな嵐あらし

noun

video noise; snow

Refers to the random static or 'snow' seen on a video screen, similar to the visual effect of a sandstorm. Often used in technical or media contexts.

See also: スノーノイズ

• 古ふるいテレビをつけると、砂すな嵐あらししか映うつらなかった。

  When I turned on the old TV, it only showed static.