Tahoe Weather Geek
Thursday April 17
Unsettled mid-spring weather will be on tap for Tahoe for the next several days into early next week.
We should see a dip in temperatures Friday as a cool front moves across the region. A low pressure system moving from the Southern California coast into the southwest US should bring a bit of moisture to the Central Sierra and a chance of isolated thunderstorms Friday afternoon, especially south of Interstate 80.
Once that system moves through drier and warmer conditions should return for the weekend, at least into Monday.
Then the forecast calls for a large trough out of the Gulf of Alaska to move through the region Tuesday and Wednesday, bringing a chance for widespread rain and snow. Snow levels would likely start out fairly high, around the mountain passes, before falling to near Lake level Tuesday night or Wednesday.
Still too soon to say how much accumulation we are likely to see.
Thursday April 10
A low pressure system drifting into Southern California from the Pacific will bring a chance of scattered showers and thunderstorms to the Sierra Friday and Saturday.
Temperatures should cool a bit as well from the above normal highs we’ve been seeing this week. But any shower activity is likely to be disorganized and spotty. Areas south of Highway 50 are more likely than north Tahoe to see measurable rain.
By Monday the area of high pressure that’s dominated our weather lately looks likely to shift east, opening the door to cooler storms off the North Pacific. A series of systems are lined up to move through the Pacific Northwest next week, but it’s too soon to say whether any of them will track far enough south to bring rain or snow to Tahoe.
Thursday April 3
A weak low pressure system is forecast to move through Northern California late today and Friday, bringing a slight chance of snow showers to the Tahoe Basin.
If we do get any precipitation it will likely start late today or tonight and continue into Friday. But any accumulations will be light. We’re looking at less than a quarter-inch of precipitation, with snow levels between 5000 and 6000 feet. That’s likely to translate into an inch or two of snow, if that.
An area of high pressure will build over the west in the wake of this system, bringing a warming trend to the Sierra and the Tahoe region.
By Monday and Tuesday, afternoon highs should be about 10 degrees above normal, with highs in the 60s around the Lake. The warmer days should last at least until the middle of next week.
There’s a chance that wet weather will return toward the end of next week but it’s too soon to tell whether that storm will stay on track or stray elsewhere.
Tuesday April 1
Snow showers should continue today throughout the Tahoe Basin as a low pressure system sliding down the California coast pushes some of its energy into the Sierra. But since the system appears set to move south before heading east, its bigger impacts today will likely be along the coast and Central Valley and the Southern Sierra. Some minor accumulations are still possible today however, and we could even see some shower activity overnight and into Wednesday before this thing is done. That will only add to the one to two feet of light powder from this storm, which has brought snow down to 2500 feet in the foothills this morning.
After a brief lull another very weak system could bring some light and scattered snow showers to the Sierra on Friday, then skies shoudl begin to clear for the weekend. A ridge of high pressure is forecast to build over the west and bring a warming trend, with temperatures back to normal or slightly above normal by Monday.
As for the drought, despite this great finish to March, precipitation totals barely reached 50 percent of normal for the month….Still not out of the woods yet.
Stay tuned for more details.