Which thresholds are used to determine the need for an alternate airport?

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Multiple Choice

Which thresholds are used to determine the need for an alternate airport?

Forecast weather at the destination determines whether an alternate airport is required. In standard IFR planning, the destination is considered acceptable without an alternate only if the forecast ceiling is at least 3000 feet and the visibility is at least 3 statute miles. If either the ceiling drops below 3000 feet or the visibility falls below 3 miles (or both), you must designate an alternate airport. These values provide a clear rule to ensure there’s a viable option if conditions at the destination deteriorate.

Forecast weather at the destination determines whether an alternate airport is required. In standard IFR planning, the destination is considered acceptable without an alternate only if the forecast ceiling is at least 3000 feet and the visibility is at least 3 statute miles. If either the ceiling drops below 3000 feet or the visibility falls below 3 miles (or both), you must designate an alternate airport. These values provide a clear rule to ensure there’s a viable option if conditions at the destination deteriorate.

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