What weather forecast is required for N60JB to list ROC as an alternate for BUF with RWY 28 active?

For an aircraft to use Rochester Airport (ROC) as an alternate airport when Buffalo Airport (BUF) is the destination with Runway 28 active, the required weather conditions must meet specific criteria set by regulations. These criteria are influenced by whether the approach is a precision or non-precision approach.

In this case, listing ROC as an alternate with a precision approach requires that the weather conditions at ROC meet minimums that allow for efficient and safe operations. The selected answer states "Precision approach 800-2," which indicates the minimum visibility and ceiling required for a precision approach. Specifically, a precision approach demands a ceiling of at least 800 feet above ground level and visibility of at least 2 statute miles.

This situation is important because if the alternate airport lacks these minimum conditions, it cannot be reliably utilized, which compromises safety and operational efficiency in case diversions are necessary. Other options present different minimums that do not satisfy the regulatory requirements for ROC to be considered a viable alternate under the specified conditions. Hence, the precision approach minimums of 800-2 align with safety protocols and regulatory standards, thus ensuring that ROC can be confidently used as an alternate airport in this scenario.