Published Sunday, Aug. 18, 2013 | 2:20 p.m.
Updated Sunday, Aug. 18, 2013 | 4:15 p.m.
A flash flood warning is in effect for the southern and eastern parts of the Las Vegas Valley.
The National Weather Service issued the warning about 4 p.m., a couple of hours after issuing a warning for Mount Charleston's Kyle Canyon and the northwest part of the valley as thunderstorms moved into the area.
About 3:50 p.m., the weather service said the heaviest rain was falling in southeast Las Vegas between interstates 15 and 515. Heavy rain was falling in parts of Henderson, as well.
About 3 p.m., heavy rain was falling in Jean. The weather service said 0.98 inch of rain fell in a half hour, including 0.63 inch in five minutes.
The weather service also said water was passing over a small bridge on a side street near the U.S. Forest Service visitor center on Mount Charleston.
Drivers should never attempt to pass through flooded areas, said National Weather Service spokesman Reid Wolcott.
Monsoon activity is expected to pick up in the Las Vegas Valley and the surrounding area through Tuesday, meaning there is a chance of thunderstorms.
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