Final answer:
The visibility reported at 1/4 SM means that the visibility is 1/4 of a statue mile, which is a very low visibility condition. This low visibility would make it unsafe to depart from the airport.
Step-by-step explanation:
The TAF (Terminal Aerodrome Forecast) provides information about the expected weather conditions at a specific airport over a specified period of time. The visibility reported at 1/4 SM means that the visibility is 1/4 of a statue mile, which is a very low visibility condition. Generally, airports require a minimum visibility of at least 1 SM for aircraft to safely take off and land.
In this case, with visibility at 1/4 SM, it would not be safe to depart. Such low visibility conditions can affect the pilot's ability to see and follow the runway and other aircraft, increasing the risk of accidents. It's important to always follow the guidelines and restrictions set by the airport and air traffic control authorities.