These maps compare areas at risk of flooding with two different COVID-19 scenarios between now (April 13, 2020) and May 16.
In the first scenario, social contact within each county decreases by an additional 20 percent each week until the number of cases in that county starts to decrease.
In the second scenario, social contact decreases by 40 percent every week until cases decrease.
Two social distancing scenarios
The modest reduction in social contact in the first scenario would ultimately result in more than 600,000 cases of COVID-19 in the counties that also carry a risk of moderate or major flooding.
The second scenario results in roughly 170,000 cases of COVID-19 in areas also at risk of flooding—a reduction of more than two-thirds.