The potential flow model for a storm is represented by the superposition of a sink and a vortex. The stream function can be written in the (r, q) system as u= -A/2∏ q + T/2∏ ln r, where A = T = 100 m2/s. Assume a constant air density of 1.2 kg/m3. The gauge pressure at a distance of 100 m from the storm eye is