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Flooding of June 2002. The Town of Fellsmere <br /> experienced flooding from heavy rains, which rendered some <br /> roads impassable and flooded two homes in the Fellsmere <br /> area. This storm caused an estimated $10,000 in damage. <br /> Flooding of August 2002. The City of Vero Beach <br /> experienced heavy rain measuring about 5 inches in a few <br /> hours, which flooded streets and three houses in the City. The <br /> storm caused an estimated $50,000 in damage. <br /> Extent/Probability/Impact. Flooding impacts related to <br /> tropical events are highlighted in the Tropical <br /> Storms/Hurricanes impacts profile. Indian River County has <br /> only experienced one flood event since the last SMS plan <br /> update (2010) and it was due to Tropical Storm Isaac (see <br /> below). There have been no flooding events recorded for <br /> Indian River County in the National Climatic Data Center <br /> database since 2012 (through April 2015). <br /> In the past, flood waters in Indian River County have seldom <br /> exceeded 6" and would not be expected to ever exceed Flood <br /> Insurance Rate Map (FIRM) base flood elevations (BFEs) at <br /> any given location (i.e., one to two feet). Indian River County <br /> has experienced a total of 8 significant flooding (flood property <br /> and/or drown people/domestic animals) events between the <br /> periods of 1947-2015; therefore, there is a 12%annual chance <br /> of a significant flooding event to occur in Indian River County. <br /> Vulnerability Assessment. In Indian River County, several <br /> variations of flood hazards occur due to the different effects of <br /> severe thunderstorms, hurricanes, seasonal rains, and other <br /> weather related conditions. For the majority of the county, the <br /> primary causes of flooding are hurricanes or tropical storms. <br /> However, the county's low-lying topography, combined with its <br /> subtropical climate, makes it vulnerable to riverine flooding. <br /> Flooding events can have the following potential impacts within <br /> a community: <br /> • Excessive water; <br /> • Soil/beach erosion; <br /> • Electric power outage; <br /> • Surface and air transportation disruption; <br /> • Navigable waterway impairment; <br /> Indian River County Comprehensive Emergency Management Plan Basic Page 11 <br />