Wake County Hazard Mitigation Plan - January 2020

SECTION 4: RISK ASSESSMENT

Category

Consequences

Public Confidence in the Jurisdiction’s Gove rnance

Public confidence is not generally affected by severe weather events.

Hazard Summary by Jurisdiction The following table summarizes severe weather hazard risk by jurisdiction. Most aspects of severe weather risk do not vary substantially by jurisdiction; however, wind and hail impacts may be greater in more highly developed areas with 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, Apex, Cary, and Raleigh each have over 250 mobile home units in their jurisdiction and therefore may face more severe impacts from wind. Where priority ratings vary between thunderstorm wind, lightning, and hail for impact and spatial extent, these scores represent an average rating with greater weight given to thunderstorm wind because it occurs much more frequently.

Jurisdiction Wake County

Probability Impact

Spatial Extent

Warning Time

Duration

Score

Priority

4 4 4 4 4 4 4 4 4 4 4 4 4

2 1 2 1 1 1 1 2 2 1 1 1 1

3 3 3 3 3 3 3 3 3 3 3 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

2.9 2.6 2.9 2.6 2.6 2.6 2.6 2.9 2.9 2.6 2.6 2.6 2.6

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 Multi-Jurisdictional Hazard Mitigation Plan 2019

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