An aircraft requires an alternate aerodrome for an IFR flight. What is the minimum forecast weather condition required at the alternate aerodrome (at the estimated time of arrival) to qualify as an alternate, if it has a straight-in non-precision approach?

Question: An aircraft requires an alternate aerodrome for an IFR flight. What is the minimum forecast weather condition required at the alternate aerodrome (at the estimated time of arrival) to qualify as an alternate, if it has a straight-in non-precision approach?

Answer options: ✅ Ceiling 400 feet above the MDA and visibility 1 statute mile above the minimum visibility for that approach.

• Ceiling 600 feet above the MDA and visibility 2 statute miles above the minimum visibility for that approach.
• Ceiling 200 feet above the MDA and visibility 1/2 statute mile above the minimum visibility for that approach.
• Ceiling at least 1000 feet AGL and visibility at least 3 statute miles.

Correct answer: Ceiling 400 feet above the MDA and visibility 1 statute mile above the minimum visibility for that approach.

Explanation: As per CAR 602.88(5)(b)(ii), for an aerodrome with a non-precision approach to be designated as an alternate, the forecast weather at the ETA must be at or above a ceiling of 400 feet above the MDA and visibility of 1 statute mile above the minimum visibility for that approach.