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18 Aug 2023 | 11:27 PM UTC

US: Flash flood warning in effect for Las Vegas, Nev., and surrounding areas until at least 19:00 Aug. 18

Flash flood warning in effect for Las Vegas, Nev., US, and surrounding areas until 19:00 Aug. 18; flooding-related disruptions possible.

Warning

Event

The US National Weather Service (NWS) has issued a flash flood warning for central Clark County, Nevada, including Las Vegas and surrounding areas, Aug. 18. The weather warning is in effect until at least 19:00, and officials could extend or expand it 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. Transport, electricity, and telecommunications disruptions are also possible in areas impacted by flooding.

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