Event narrative (NOAA)
In addition to strong winds and large hail, redeveloping severe thunderstorms produced heavy downpours which resulted in severe flash flooding in the southeast Las Vegas Valley. In Henderson, raging flood waters turned roads into rivers up to three and four feet deep. Water and mud slides closed many roads, including U.S. Highway 95, for several hours. One man was drowned when a strong current swept him under his vehicle as he tried to move it off his neighborhood street. Rescue workers performed a number of swift water rescues until as late as 8:30 pm PST. Four people were hospitilized. Flooding also resulted in the release of titanium dioxide gas (non-toxic) at the TIMET plant. Extensive damage to roads and buildings prompted the Governor to declare Henderson a disaster area.
Other notable flash flood events in Nevada
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.