What are the minimum weather conditions required at an alternate airport with a precision approach procedure for it to be eligible as an alternate?

For an alternate airport that has a precision approach procedure, the minimum weather conditions must meet specific criteria set by aviation regulations. The correct minimums are a 600-foot ceiling and 2 statute miles visibility. This is because precision approaches typically offer greater accuracy and reliability, ensuring that if a pilot has to divert to this alternate airport, the conditions are adequately safe for landing.

By stipulating a ceiling of 600 feet and visibility of 2 statute miles, the requirements strike a balance between safety and operational capability while using the precision approach. These standards account for various factors, including the ability of the aircraft to safely navigate and land in potentially challenging weather conditions. Such specific minimums highlight the emphasis on ensuring positive control and situational awareness for pilots operating under instrument flight rules (IFR).