Tahoe Weather Geek
Wednesday Nov. 4
Another early season storm is brewing, and it could bring several more inches of snow to the Tahoe area early next week.
This one is forming in the Gulf of Alaska and is expected to begin moving south over the weekend. The leading edge could reach Tahoe by late Sunday, with snow possible on Monday.
This storm will not have nearly as much moisture as the system that came through Sunday and Monday. But it will be much colder, which would mean higher snow-to-water ratios.
It’s too soon to say how much snow we might get. We do know it’s not likely to be a big one. The best guess for now looks like something between a dusting and a modest accumulation…
Monday Nov. 2
The first major snowfall of the season is upon us.
Snow began falling Sunday above 8000 feet and snow levels dropped over night to below 6000 feet. There’s still plenty of moisture left in this system, so one to two feet at the highest elevations and around 6 inches at the mountain passes looks like a good estimate.
The weather will remain unsettled through Wednesday, with an inside slider system sweeping down the east side of the mountains Tuesday, bringing chilly arctic air and the chance of snow showers for the Tahoe Basin.
High pressure is forecast to rebuild by Thursday for what should be a dry, warm weekend.
The first significant winter storm of the season is heading for the Sierra Nevada today.
The latest forecast models show the storm taking a slightly slower track over the mountains, which should boost precipitation totals and, likely, snow totals as well.
We should see rain in the Tahoe Basin by mid-afternoon to late Sunday, with snow levels initially above 8000 feet.
Snow levels are expected to drop Monday morning, eventually reaching the shores of Lake Tahoe.
With two inches of total precipitation possible, that should translate into one to two feet of snow above 8000 feet, with lesser amounts at the passes. Depending on the timing of the arrival of colder air, we could see 6 to 10 inches or so at Donner and Echo summits. A few inches are possible at lake level by Monday night.
The weather will remain unsettled into the work week, with one and possibly two more systems sliding down the east side of the Sierra and possible bringing snow showers to the region. These systems will be colder but not as moist, so snow accumulations will be modest at best,
Stay tuned for more details.
Friday Oct. 30
The first winter-like storm of the season is on track to sweep through the Sierra Nevada Sunday and Monday, bringing cold rain to the Tahoe Basin and high-elevation snow on Sunday, turning to widespread light snow on Monday.
Precipitation should start during the day on Sunday, with snow levels initially above about 7500 to 8000 feet. Those levels are expected to drop Sunday night or early Monday as the cold front moves through.
Current models have this system moving fairly quickly, which would limit the snow potential to about 6 to 12 inches above 7,500 feet. Those totals could climb a bit if the storm moves more slowly than expected. Snow levels should drop to near 5000 feet on Monday, but with much of the moisture already having moved east by then, snow totals at those lower elevations will be modest.
Conditions will likely remain unsettled into Tuesday and Wednesday, with cold temperatures and scattered snow showers possible.