При сильном ветре я не езжу на велосипеде.

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Breakdown of При сильном ветре я не езжу на велосипеде.

• на: by
• не: not
• сильный: strong

Questions & Answers about При сильном ветре я не езжу на велосипеде.

Why does при mean “when/if” here, and what nuance does it add?

При literally means “at/under” (a condition). In sentences like При сильном ветре…, it means “under conditions of…” → “when/if there is strong wind.”
It sounds a bit more “conditions-based” (and sometimes slightly more formal) than just saying когда.

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What case is used after при, and why is it ветре?

При governs the prepositional case.
So ветер → prepositional (о) ветре / при ветре = ветре.

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Why is the adjective сильном (not сильный)?

Adjectives must agree with the noun in case, gender, and number.

• ветре = masculine singular prepositional
• therefore сильный → masculine singular prepositional = сильном
  So: при сильном ветре.

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Can I replace при сильном ветре with в сильный ветер? What’s the difference?