Mammoth Mountain & Eastern Sierra Recreational Weather Forecast – Tuesday, September 21^st, 2021 @ 5:15 PM

Good afternoon everyone, checking the window cast this evening there is haze in the high country again and it’s slowly working its way down to Round Valley and Bishop. 

The past 3 days have been great with the clear skies, not many people around so you can enjoy some solitude up here. 

Taking a look at local conditions, yesterday at the top of Mammoth Mountain there was a high of 51 and today the high reached 55 with a low of 43 at 1 am. Today there was a peak wind gust at 11,053 feet of 17 MPH out of the SW.

In Mammoth Lakes, the temperature today peaked at 72 degrees with a low of 38 degrees this morning. There was a peak wind gust today of 10 MPH out of the E.

Down in Bishop, there was a temperature of 88 degrees with a low of 54 degrees this morning. There was a peak wind gust of 15 MPH out of the SSE.

Temperatures: Mammoth Lakes will be in the low 70s on Wednesday and Thursday with overnight lows in the low to mid-40s. Down in Bishop and the Round Valley areas highs are expected in the upper 80s to very low 90s with lows in the mid-50s. 

Winds: Wednesday it will be a bit windy at times with a southwest wind of 10 to 20 mph, with gusts as high as 30 mph. Thursday look for a Northwest wind 5 to 10 mph becoming northeast. 

By Friday expect a Northeast wind around 5 mph becoming southeast in the afternoon. NE winds will push the haze and smoke to our west.

Precipitation: There is a chance of some isolated thunderstorms with light rain under storms that are do form on Sunday. Snow Levels are around 11,800 to 12,300 feet. This is all from the cut of low off the So Cal coast. It’s cut off so it’s a woe to forecast, where it goes nobody knows for sure.

Models over the weekend had the low in a position that would bring some good rain in and now that solution is off the table. 

I have seen setups like this in September where I went to bed expecting it to be dry the next day and overnight the low meanders into just the right spot and then boom you wake up to rain the next morning. More updates to come on this one…

Here are the links to the local NWS Forecasts for Main Lodge & the Mammoth Lakes Basin, Mammoth Lakes, June Lake, Crowley Lake, and Bishop.

Fire and Smoke Forecast: With the haze moving back in now keeping checking AQI levels if you’re in the area. The HRRR Smoke model has some high-end AQI levels over the next 24 hours and then they back off and the air looks to clear out again by mid-day on Thursday into at least Friday.