100-YR STORM SURGES AND A-VALUES ARE PROVIDED BY FSU BEACHES AND SHORES RESOURCE CENTER If A-value is 'variable' then the value is calculated by Dean's model for each monument range MANATEE COUNTY 100 year storm surge and A-values Ranges 100 SS ------ ------ 1- 10 12.3 ft.-NGVD 11- 20 12.4 21- 30 12.5 31- 40 12.5 41- 50 12.6 51- 60 12.7 61- 67 12.8 Ranges A-value ------ ------- 1-41 variable 42-67 0.1544