SECTION 4: RISK ASSESSMENT
ENVIRONMENT Winter storm events may include ice or snow accumulation on trees which can cause large limbs, or even whole trees, to snap and potentially fall on buildings, cars, or power lines. This potential for winter debris creates a dangerous environment to be outside in; significant injury or fatality may occur if a large limb snaps while a local resident is out driving or walking underneath it.
CONSEQUENCE ANALYSIS
Table 4.113 summarizes the potential negative consequences of severe winter storm. Table 4.113 – Consequence Analysis – Severe Winter Storm Category Consequences Public
Localized impact expected to be severe for affected areas and moderate to light for other less affected areas. Adverse impact expected to be severe for unprotected personnel and moderate to light for trained, equipped, and protected personnel. Localized disruption of roads and/or utilities caused by incident may postpone delivery of some services.
Responders
Continuity of Operations (including Continued Delivery of Services) Property, Facilities and Infrastructure
Localized impact to facilities and infrastructure in the areas of the incident. Power lines and roads most adversely affected.
Environment
Environmental damage to trees, bushes, etc.
Economic Condition of the Jurisdiction Public Confidence in the Jurisdiction’s Governance
Local economy and finances may be adversely affected, depending on damage. Ability to respond and recover may be questioned and challenged if planning, response, and recovery not timely and effective.
HAZARD SUMMARY BY JURISDICTION
The following table summarizes severe winter storm hazard risk by jurisdiction. Severe winter storm risk does not vary substantially by jurisdiction because these events are typically regional in nature.
Spatial Extent
Warning Time
Jurisdiction
Probability
Impact
Duration
Score
Priority
Wake County
4 4 4 4 4 4 4 4 4 4 4 4 4
2 2 2 2 2 2 2 2 2 2 2 2 2
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
3 3 3 3 3 3 3 3 3 3 3 3 3
3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0
H H H H H H H H H H H H H
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 214
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