SECTION 4: RISK ASSESSMENT
Hazard
Included in 2018 State HMP? Included in 2015 Wake County HMP?
Radiological Emergency
Yes Yes Yes Yes Yes
Yes Yes No No
Terrorism
Infectious Disease
Cyber Threat
Electromagnetic Pulse
No
The HMPC evaluated the above list of hazards using existing hazard data, past disaster declarations, local knowledge, and information from the 2018 State Plan and the 2015 Wake County Plan to determine the significance of these hazards to the planning area. Significance was measured in general terms and focused on key criteria such as frequency and resulting damage, which includes deaths and injuries, as well as property and economic damage. One significant resource in this effort was t he National Oceanic and Atmospheric Administration‘s National Center for Environmental Information (NCEI), which has been tracking various types of severe weather since 1950. Their Storm Events Database contains an archive by county of destructive storm or weather data and information which includes local, intense and damaging events. NCEI receives storm data from the National Weather Service (NWS). The NWS receives their information from a variety of sources, which include but are not limited to: county, state and federal emergency management officials, local law enforcement officials, SkyWarn spotters, NWS damage surveys, newspaper clipping services, the insurance industry and the general public, among others. The NCEI database contains 783 records of severe weather events that occurred in Wake County in the 20-year period from 1998 through 2017. Table 4.2 summarizes these events. Table 4.2 – NCEI Severe Weather Reports for Wake County, 1998 – 2017
Type
# of Events
Property Damage
Crop Damage
Deaths
Injuries
Cold/Wind Chill
0 0 0 0
$0 $0 $0 $0
$0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0
0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 4 0 0 0 0 9
0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
Drought
Extreme Cold/Wind Chill
Excessive Heat
Flash Flood
117
$68,651,000
Flood
7
$60,000
Hail
209
$10,000,000
Heat
2 5 2 5 6 1
$0 $0 $0
Heavy Rain Heavy Snow High Wind Hurricane
$135,000 $910,000
Ice Storm Lightning
$0
33 12
$2,417,000
Strong Wind
$958,000
$5,000 $4,000 $25,000
Thunderstorm Wind
324
$2,956,250
12 70
Tornado
12
$116,028,000
Tropical Storm
2 1
$20,000
$0 $0 $0 $0
0 0 0 0
Wildfire
$1,000,000 $1,000,000
Winter Storm Winter Weather
25 19
$40,000
Total:
782
$204,175,250
$34,000
83
Source: National Center for Environmental Information Events Database, June 2018 Note: Losses reflect totals for all impacted areas for each event.
Wake County Multi-Jurisdictional Hazard Mitigation Plan 2019
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