PROJECT ALERT NOTICE (NV) Flood Response Deployment for Las Vegas Valley

Date: Sun, 11 Oct 2026 11:21:51 EDT

Summary: A flood team is being deployed as Tropical Storm Rachel drives heavy rainfall in Las Vegas, NV today.

One USGS flood team is being deployed today in Las Vegas, NV due to heavy precipitation and localized flooding associated with Tropical Storm Rachel. Nine streamgages on the main stem of the Las Vegas Wash are recording significant peaks of approximately 10,000+ cfs, marking the largest event in the area since 2023.

Overnight precipitation from the first band of the storm varied widely, ranging from 0.24 inches in eastern Las Vegas to over 2 inches in the western valley. Additional precipitation is expected today.

The deployed flood crew will be targeting 2–3 streamgages where direct discharge measurements are feasible.