On August 26, 2025, the National Weather Service issued multiple flash flood warnings across parts of Nevada and California due to heavy rainfall. Areas under warning included Floriston, California, and several counties in Nevada such as Lyon, Storey, Patrick, and Virginia City. The warnings were active until various times in the late afternoon and early evening, with Floriston's warning lasting until 5:00 PM PDT and Virginia City's until 6:45 PM PDT. Southeastern Clark County, including the Las Vegas Valley, also received flash flood warnings and a flood advisory amid severe thunderstorm conditions. This marked a notable change in weather for the Las Vegas Valley, which had not experienced significant rain since mid-July. Residents were advised to exercise caution as the region faced potential flooding and severe weather impacts.
Flash Flood Warning including Virginia City NV until 6:45 PM PDT https://t.co/9UnaQaHgmZ
Flash Flood Warning continues for Lyon County, NV, Storey County, NV until 5:15 PM PDT https://t.co/biQt24eC3s
A flood advisory and severe thunderstorm warning were issued to portions of Southern Nevada, including the Las Vegas valley, Tuesday afternoon. https://t.co/pW73wI1z7e