SECTION 4: RISK ASSESSMENT
Category
Consequences
Responders
Localized impact expected to limit damage to personnel in the inundation area at the time of the incident. Damage to facilities/personnel from flooding or wind may require temporary relocation of some operations. Operations may be interrupted by power outages. Disruption of roads and/or utilities may postpone delivery of some services. Regulatory waivers may be needed locally. Fulfillment of some contracts may be difficult. Impact may reduce deliveries. Structural damage to buildings may occur; loss of glass windows and doors by high winds and debris; loss of roof coverings, partial wall collapses, and other damages requiring significant repairs are possible in a major (category 3 to 5) hurricane. Hurricanes can devastate wooded ecosystems and remove all the foliation from forest canopies, and they can change habitats so drastically that the indigenous animal populations suffer as a result. Specific foods can be taken away as high winds will often strip fruits, seeds and berries from bushes and trees. Secondary impacts may occur; for example, high winds and debris may result in damage to an above-ground fuel tank, resulting in a significant chemical spill. Local economy and finances adversely affected, possibly for an extended period of time, depending on damages. Intangible impacts also likely, including business interruption and additional living expenses. Likely to impact public confidence due to possibility of major event requiring substantial response and long-term recovery effort.
Continuity of Operations (including Continued Delivery of Services)
Property, Facilities and Infrastructure
Environment
Economic Condition of the Jurisdiction
Public Confidence in the Jurisdiction’s Governance
HAZARD SUMMARY BY JURISDICTION The following table summarizes hurricane and tropical storm hazard risk by jurisdiction. Most aspects of hurricane risk do not vary substantially by jurisdiction; however, impacts may be greater in more highly developed areas with greater amounts of impervious surface and higher exposure in terms of both property and population density. Additionally, mobile home units are more vulnerable to wind damage. While mobile home units do not comprise a significant proportion of any jurisdictions housing mix, Wake County, Cary, Morrisville, Wake Forest and Raleigh each have over 250 mobile home units in their jurisdiction and therefore may face more severe impacts from wind.
Spatial Extent
Warning Time
Jurisdiction
Probability
Impact
Duration
Score
Priority
Wake County
3 3 3 3 3 3 3 3 3 3 3 3 3
4 3 4 3 3 3 3 4 4 3 4 3 3
4 4 4 4 4 4 4 4 4 4 4 4 4
1 1 1 1 1 1 1 1 1 1 1 1 1
2 2 2 2 2 2 2 2 2 2 2 2 2
3.2 2.9 3.2 2.9 2.9 2.9 2.9 3.2 3.2 2.9 3.2 2.9 2.9
H M H M M M M H H M H M M
Apex Cary
Fuquay-Varina
Garner
Holly Springs Knightdale
Morrisville
Raleigh
Rolesville
Wake Forest
Wendell Zebulon
Wake County, NC Multi-Jurisdictional Hazard Mitigation Plan
WSP June 2024 Page 172
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