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20 Jul 2023 | 11:49 PM UTC

US: Flash flood warnings in effect for parts of central Virginia until at least 22:30 July 20

Authorities issue flash flood warnings for parts of central Virginia, US, through at least 22:30 July 20. Disruptions possible.

Informational

Event

The US National Weather Service (NWS) has issued flash flood warnings for parts of central Virginia until at least 22:30 July 20. Areas under flash flood warnings include Roanoke, Roanoke Regional Airport (ROA), Hollins, Vinton, Cave Spring, and northeastern portions of Roanoke County. Rainfall totals of 1.27-6.35 cm (0.5-2.5 inches) have already fallen in parts of the affected area and further is forecast over the coming hours.

Sustained heavy rainfall could trigger flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites located downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly or mountainous areas, especially where the soil has become saturated by heavy rainfall.

Localized business disruptions may occur in low-lying areas; some businesses might not operate at full capacity because of flood damage to facilities, possible evacuations, and some employees' inability to reach work sites.

Advice

Monitor local media for weather updates and related advisories. Confirm all transport reservations and business appointments before travel. Make allowances for localized travel delays and potential supply chain disruptions where flooding has been forecast. Do not drive on flooded roads. Charge battery-powered devices in the case of prolonged electricity outages.

Resources

NWS