More thunderstorms possible

By Dave Toplikar

Tuesday, July 15, 2008 | 8:05 a.m.

Keep your umbrella handy and make sure your windshield wipers work. Las Vegas could be drenched with another round of thunderstorms this afternoon and evening.

The National Weather Service says a moist and unstable air mass will lead to storms that could bring dangerous lightning and possible strong winds.

Heavy rain could produced isolated flash flooding or urban flooding, the weather service said.

The forecast calls for a 20 percent chance of showers and thunderstorms after 11 a.m., with today's high temperature climbing to 98 degrees.

Tonight's forecast calls for a 20 percent chance of showers and thunderstorms before 11 p.m., with partly cloudy skies and a low around 80 degrees.

Monday afternoon's storms brought heavy rains, hail and street flooding through the Las Vegas Valley.

Henderson got somewhere between 0.2 of of an inch to 0.7 of an inch of rain, according to private weather stations listed on WeatherUnderground.com.

McCarran International Airport reported a trace of rain, less than .01 of an inch, falling during the brunt of Monday afternoon's storms, which lasted a little more than two hours.