In the presence of smoke observed at 900 feet obscuring less than 1/8 of sky cover, what is reported?

When smoke is observed at an altitude of 900 feet and obscures less than 1/8 of the sky, it is important to accurately report the conditions as part of the standard weather observation format.

In this case, the correct report indicates that there is smoke, denoted by "FU" in column 9, which corresponds to the smoke phenomenon observed. Additionally, since the smoke is not obscuring a significant portion of the sky, the appropriate sky condition reported in column 10 is "FEW009," indicating a few clouds at 900 feet above the ground. This means there are very few clouds at that level, with the numeral representing the altitude in hundreds of feet. The absence of other significant obscuring phenomena or cloud cover in other levels is appropriately noted in column 14 as "FU FEW009," reaffirming that smoke is present but does not significantly obstruct the view.

This choice encapsulates the necessary details of the observation, ensuring clarity about both the obscuration caused by smoke and the sky condition at the specified altitude. The reporting structure aligns with the standards for weather observations, thus conveying the correct information needed for aviation-related decisions.