Which station is reporting the lowest ceiling?

To determine which station is reporting the lowest ceiling, it's important to understand that "ceiling" in aviation weather refers to the height of the cloud base above the ground. The station reporting the lowest ceiling will have the cloud base at the lowest altitude.

In this case, KFTW is selected as the station with the lowest ceiling. This means that when comparing the different reports from KDAL, KAUS, KPNC, and KFTW, the cloud base reported at KFTW is the closest to the ground, signaling the most limited visibility conditions due to lower clouds.

Often, factors that contribute to the measurement of ceilings include atmospheric conditions like humidity, temperature, and the presence of weather phenomena such as fog or precipitation. Hence, KFTW being identified as having the lowest ceiling suggests it is experiencing more significant weather-related restrictions compared to the other stations listed.

This selection indicates an understanding of how ceiling data is reported and the impact of clouds on visibility, which is crucial for flight safety and planning.