The reluctance of communities in these counties to enroll in FEMA’s National Flood Insurance Program (NFIP) and its implications given the severity of flood damage observed have been highlighted in media reports. If those homes were insured through the NFIP program, they would have been covered for up to USD 250,000 for building damage and USD 100,000 for contents. Soon after the flooding FEMA declared a disaster in the four most affected counties (Humphreys, Dickson, Houston, and Hickman), enabling individuals to apply for disaster assistance for debris removal and repairs however, the disaster assistance covers only a portion of the repair and rebuilding costs. Many houses were dislodged from their foundations and a great number of vehicles saw severe flood damage mostly due to the floodwaters and debris carried by them. According to the Tennessee Department of Transportation (TEMA), approximately 700 homes were flooded during the event and several roads and bridges were washed away. There were widespread reports of power outages and interruptions of telecommunications, water, and other utility services. Most of the flood damage was seen in the City of Waverly and neighboring parts of Humphreys County. Observed precipitation on August 21,2021, in Tennessee. The sustained intense precipitation and river overflow prompted NWS to issue flash flood warnings for five affected counties. The river gauge at the Piney River level rose from 3.3 feet to 31.8 feet in less than 10 hours on August 21, recording the river well above its Major Flood Stage of 24 feet. On August 21, 2021, Middle Tennessee experienced record-breaking rainfall owing to a combination of intense thunderstorms initiated along a decaying frontal boundary, record high humidity levels throughout the atmosphere, and a weak spark in the upper-level flow.Īccording to the National Weather Service Forecast Office, Nashville, TN, ( NWS), Humphreys, Dickson, Houston, and Hickman counties experienced more than 15 inches of precipitation in 24 hours and some locations received as much as 17 inches (Figure 1).
Parts of Middle Tennessee-a region comprising 38 counties east of the Tennessee River and west of the Eastern Time Zone boundary-lay in Ida’s forecast path and were placed on a flood watch while still recovering from flooding after record-breaking rainfall that had fallen only the week before.
Catastrophic flooding in the U.S., most recently Hurricane Ida–related, has dominated the news lately.
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