Triple Digit Heat and Storm Chances This Week - KTVN Channel 2 - Reno Tahoe Sparks News, Weather, Video

Triple Digit Heat and Storm Chances This Week

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The heat has arrived in the southwest and temperatures will continue to climb in the days to come. We also have a chance for showers and thunderstorms Monday afternoon, especially in the Sierra. High temperatures will be in the upper 90’s Monday and triple digits Tuesday. Past Tuesday, temperatures will still be hot with highs at least in the mid 90’s. Winds will stay light for the majority of the day throughout the week, but they could gust in the 20’s in the late afternoon, which is typical for our area. The thunderstorms Monday will have a decent amount of moisture to work with, lowering the threat for dry lightning. Everyone in green has a chance for thunderstorms Monday. 

It won’t only be warm in the valley the next few days but also at Tahoe where temperatures will be in the upper 80’s and well above average.

The best chance for thunderstorms Monday will be in the Sierra as the mountains provide some lift for the storms to get going. We saw a few thunderstorms in the Southern Sierra Sunday evening, and we have a better chance for storms Monday as we’ll be more unstable. What does unstable mean? It means clouds will have an easier time growing. If you’re stable you stay in the same place, if you’re unstable you move all over the place. In terms of meteorology, an unstable air mass is one in which the surface is warmer than the air above. Like inversions during the winter season, a warm layer above traps parcels of air from rising. In Tornado Alley they call this a cap or lid on the atmosphere during severe weather season. The lid will be less noticeable Monday, allowing for more storms to develop. The storms that do develop will be slow moving and heavy rain producers. Any storms that do develop could also produce small hail and gusty winds. Again it is only a slight chance for storms in the valley, and not everyone will get wet. Timing will be the afternoon and evening.

With a ridge of high pressure in place this means the storms won’t have anything to steer them, and it also means temperatures will be warm. While we’ll be in the upper 90’s and low 100’s, places like Vegas and Central California will be closer to 120 degrees. Closer to home, we have a good chance of at least meeting the record high on both Monday and Tuesday, possibly Wednesday too.

I’m hoping to make an ice cream forecast graphic, so feel free to email me pics of you and your family eating ice cream to Have a great week.

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