SECTION 4: RISK ASSESSMENT
Warning Time: 1 – More than 24 hours Duration: 4 – More than one week
Location Drought is a regional hazard that can cover an entire the entire planning area, and in some cases the entire state. The figure below notes the U.S. Drought Monitor’s drought ratings for North Carolina as of February 5, 2019; as of that date, Wake County was experiencing no impacts of drought. Figure 4.3 – US Drought Monitor for Week of February 5, 2019
Source: U.S. Drought Monitor
Extent Drought extent can be defined in terms of intensity, using the U.S. Drought Monitor scale. The Drought Monitor Scale measures drought episodes with input from the Palmer Drought Severity Index, the Standardized Precipitation Index, the Keetch-Byram Drought Index, soil moisture indicators, and other inputs as well as information on how drought is affecting people. Figure 4.4 details the classifications used by the U.S. Drought Monitor. A category of D2 (severe) or higher on the U.S. Drought Monitor Scale can typically result in crop or pasture losses, water shortages, and the need to institute water restrictions.
Wake County Multi-Jurisdictional Hazard Mitigation Plan 2019
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