10-6-21 @ 7:08 AM The Weather Story

Two weather systems are forecast to affect Eastern Sierra weather over the next week. The first system will start to effect us today with a shift and increase in the winds. Those winds will start to blow out all the smoke in the area.

On Thursday and more likely on Friday the higher elevations above 7500 – 8000 feet will get snow showers and their first real accumulated dusting of snow for the season. Not looking for much more then 1-3 inches of snow as of this mornings update.

The second system is dropping in over land and is not forecast to bring much more then a dusting of snow to an inch at best. If there is a course change there could possibly be more snow early next week. The main effects will be colder air from that system.

In the gif below you can see the whole process of lows 1 and 2 over the next 7 days.

Taking a closer look at the next week. The first system is a cut-off low that is forecast to pinch off from the main low hitting the Pacific North West at this time. You can see that cut-off low pinch of and form on the gif below.

The cut-off low will work its way inland Thursday into late Friday. The best chance for accumulating snowfall from the first system will be Friday as the colder air has moved in along with some convective activity going on during the day.

Snowfall amounts will be in the 1-2+ inch range for the higher elevations with the snow a heavy wet slush.   

QPF amounts are in the .10-.30 range with a chance for a bit higher amounts. This is a cut-off low so it can be the weather man’s woe tricking us and doing what it wants and not what we forecast.

Here are the snowfall amounts that are foretasted on the EPS Ensemble Mean. The Mammoth Mountain Summit is right on the first blue line. That’s right at 2 inches of snow with most of it from the first system moving in. Don’t be surprised if there is more snowfall then the couple inches in the forecast.

Over the weekend the low will move to our east on Saturday and there will be a north to northeast flow in the area and that will keep the Eastern Sierra nice, clear and cool.

Looks like a good chilly weekend to take in some Fall Colors with some snow on the local area peaks. Look for higher elevation leaf burn with the snow and freezing temperatures above 9000 feet.

There will be a slight warm-up in the area on Sunday a head of the next system coming in.

The second low drops down into the area with a path from the direct north, overland. That is a dry but very cold pattern. Not expecting much snowfall over a dusting with that one.

Tuesday is a long ways off so be aware that this lows path is going to change a bit over the next several days. Snowman

Going to stay nice and cool for the next 10 days and beyond. Soon there will be temperature section set up in here so You can take a daily look at the Snowmaking opportunities for the Mammoth Mountain Ski Area.