Las Vegas was hit by flooding as heavy thunderstorms packing golf ball-sized hail, gusty winds and destructive lightning swept through the area, leaving at least one person hospitalized after she was plucked from a flooded wash, authorities said.
The woman was believed to have suffered a heart attack while she and two other people were rescued Thursday from rushing water near the Hard Rock Casino Hotel east of the Las Vegas Strip, Deputy Clark County Fire Chief Jeff Buchanan said.
Firefighters reached two other people and their dogs in another wash near Boulder Highway, about 5 miles east of the Strip, and rescued another two people at another site shortly after 6pm, Buchanan said.
At least 21 airline flights were diverted from busy McCarran International Airport, where the National Weather Service said wind gusts were clocked at 56mph during the height of the storm.
Several vehicles stalled with water up to their headlights in one flooded intersection in nearby Henderson.
'People don't realize just a few inches of rain can really cause some damage,' said Kim Becker, a Henderson city spokeswoman.
Monsoon-style summer storms aren't unusual in the desert around Las Vegas, where one or two storms can go a long way toward filling rain gauges that average only 4.19 inches of rainfall a year.
But heavy rain can turn to torrents sluicing off sun-baked desert or pavement into miles of flood channels constructed to protect homes and businesses.
Weather service meteorologist John Adair said Henderson received up to 1½ inch of rain between 2pm and 3pm.
Red Rock Canyon, about 25 miles west of the Strip, received more than 1¼ inches, and Adair said flooding closed the scenic 13-mile loop road through the preserve.
Adair called the 2-inch hail that fell in southwestern neighborhoods near the 215 Beltway the most unusual element of the storm. Hail the size of 25-cent pieces pelted Henderson.
Winds felled at least one tree, and Buchanan said lightning sparked a house fire that displaced two adults and their pet dogs.
NV Energy reported almost 4,700 customers without electricity shortly after the rain stopped.
Traffic officials reported more than one lane of the U.S. 95 freeway closed for a time due to flooding not far from the Galleria at Sunset mall in Henderson.
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