あらし・嵐arashi[1]atamadaka (head-high)

1. nounstorm; tempest
   この風かぜは嵐あらしの印しるしだ。↗

   This wind is a sign of a storm.
2. nounuproar; hullabaloo; storm (e.g. of protest); winds (e.g. of change)
3. noun, card gamespile of 3 cards of the same value in oicho-kabuusu. as アラシ

• Synonym暴風ぼうふうWrittenWritten/formal prose for a violent wind, focusing on wind force alone, as in 「暴風警報」; 「嵐」 is wind and rain together and can also mean turmoil.
• SynonymストームNeutralLoanword for a storm, mostly seen in names; in everyday speech 「嵐」 is the usual word.
• Antonym静穏せいおんWrittenWritten/formal prose for calm and tranquility, the opposite of turbulent 「嵐」; also used in weather contexts.
• Antonym凪なぎNeutralA calm, windless sea; the opposite of 「嵐」 with its raging winds.

「嵐」 is the default for a wind-and-rain storm and, figuratively, an uproar. Choose 「暴風」 in written prose when the emphasis is wind force; 「ストーム」 mostly appears in names. 「凪」 (calm sea) and 「静穏」 (written, also weather) are the opposites.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. （あらし）暴風ぼうふう雨う。