Three days of twice hourly temperature and velocity profile data were obtained on the southwest Florida Continental Shelf. Measurements in the bottom boundary layer were made with a Cyclesonde to within 5m of the bottom in a depth of 200m with an average vertical resolution ~5m. In the lowest 30m, temperature was nearly constant and the current vectors rotated clockwise from the bottom upward as in Ekman spiral (total angle of veering ~13¿--18¿), while in the 20m immediately above, the velocity was nearly constant. The bottom stress, &tgr;0=0.22 to 0.48 dynes/cm2 was estimated by determining the non-geostrophic mass transport within the friction layer. The similarity constant relating the total veering angle and the geostrophic drag coefficient was about 2 to 3. The ratio of the boundary layer thickness to u*/f was about 0.3 to 0.4.