Current Conditions

79°
Mostly cloudy
Feels like: 79°
High: 71°
Low: 60°
Humidity: 13%
Barometer: 29.56 in
Dew Point: 25°
Sunrise: 5:39 AM
Sunset: 7:34 PM
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13 First Alert Weather Forecast

A potent upper level low pressure system is headed towards the Las Vegas valley for tonight, tomorrow and into the weekend.  Winds will increase ahead of a weak cold front moving through the valley and rain showers and thunderstorms are likely along the front which will push through in the very late overnight hours into the wee hours of tomorrow morning.  Lightning and gusty winds are the main threats with this initial batch of storms as rain will be brief and the storms will be pretty quick movers so they shouldn’t amount to much by way of flooding.  The bigger threat for more impactful weather comes Friday as the upper level low sits directly overhead with ample low level moisture.  Energy will be lacking but cold air at upper levels of the atmosphere along with daytime heating will allow for popcorn thunderstorms to fire off as the day progresses.  That cold air will also chop about 10-15° off of Thursday’s temperatures, with many areas in the valley not breaking out of the 60s.  Models are showing the best chance for showers and thunderstorms from about 11am through to about 3pm dependant on clearing skies.  Any thunderstorms could have gusty winds, small hail and lightning and could produce some localized flooding, although valley-wide flooding isn’t expected.  Saturday and Sunday the chances for showers and thunderstorms decrease but the threat for isolated showers remains as the upper level low departs to the east.  Sunshine returns Monday and temperatures climb to back near 90° with a few high clouds around by the middle of next week.

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