The Weather Channel reports that it is a hot, muggy day with an air temperature of \(90^{\circ} \mathrm{F}\), a \(10 \mathrm{mph}\) breeze out of the southwest, and bright sunshine with a solar insolation of \(400 \mathrm{~W} / \mathrm{m}^{2}\). Consider the wall of a metal building over which the prevailing wind blows. The length of the wall in the wind direction is \(10 \mathrm{~m}\), and the emissivity is 0.93. Assume that all the solar irradiation is absorbed, that the surroundings are at \(T_{\text {sur }}=85^{\circ} \mathrm{F}\), and that flow is fully turbulent over the wall. Estimate the average wall temperature.