 Three surface weather stations collected data from Michael's eyewall as it moved onshore; however, they either malfunctioned before the arrival of the storm's strongest winds or were positioned outside the radius of maximum wind, providing incomplete measurements and resulting in maximum values lower than expected from radar and aircraft reconnaissance data.The fastest 1-minute average wind measured by a surface-based anemometer was at a weather station within Tyndall Air Force Base; the same station recorded a peak wind gust of .Another station on the base grounds, affixed to a tower, registered a gust before the tower toppled.