There was recon of Andrew right up until Landfall, so land-based anemometers weren't the sole source of data.
The reanalysis of Andrew in 2002 put the winds of Andrew at Landfall at 145 kts.
Yeah, but no one knows what the peak winds on the ground were. No data for that.
From Wikpedia
Andrew's peak winds in south Florida were not directly measured due to destruction of the measuring instruments. An automated station at Fowey Rocks reported 142 mph (228 km/h) sustained winds with gusts to 200 mph (321 km/h) (measured 144 ft (43.9 m) above the ground), and higher values may have occurred after the station was damaged and stopped reporting. The National Hurricane Center had a peak gust of 164 mph (272 km/h) (measured 130 ft (39.6 m) above the ground), while a 177 mph (285 km/h) gust was measured at a private home. In 2002, as part of an ongoing review of historical hurricane records, National Hurricane Center experts concluded that Andrew briefly had sustained winds of 165 mph (265 km/h) at landfall (Andrew had originally been classified as a Category Four storm at landfall). Additionally, Berwick, Louisiana, reported 96 mph (154 km/h) sustained winds with gusts to 120 mph (193 km/h).