Ultimate Wind Speeds

The Florida Building Code (FBC) 2023 8th Edition effective date is December 31st, 2023.

Ultimate Wind Speeds obtained from Figures 1603 A, B, C of the Florida Building Code for Risk Categories I, II, III, and IV using Exposure B, C, or D will be applicable in accordance with the provisions set forth in section 1609.4 of the FBC.

By City Ordinance Number O-12-08, the adopted Ultimate Wind Speeds for Sebastian are:

  • 150 mph for Risk Category I
  • 160 mph for Risk Category II
  • 170 mph for Risk Category III and IV


If you have any questions about the wind speed requirements please contact the Building Department for clarification.