Category: Weather

Posted on

Fourth round of early season Vermont snows brings accumulations to the Green Mountain valleys

An image showing a CoCoRaHS weather observations map with snow accumulations in Northern Vermont from an October snowstorm
An image showing residual accumulations of snow on Mount Mansfield on one of the webcams at Stowe Mountain Ski Resort in Northern Vermont after an October snowstorm
Residual accumulations visible on the Stowe Mountain Resort webcam thanks to our most recent round of early season snows

The first flakes of the season at our site in Waterbury were back on the 16th of the month with that last big snow event, but thanks to the system moving through yesterday into today, we accrued the first accumulations I’ve seen here. Temperatures were certainly above freezing here in the valley, but the intensity of the precipitation is what brought on the accumulation when one of the more active cells on the radar came through our area.

A radar animation image showing a cell of precipitation bringing the first accumulating snows to the Waterbury area of Vermont
Accumulations finally started to take hold down at our elevation of 500 feet in the Winooski Valley in Waterbury when one of the more potent cells of precipitation crossed the spine of the Green Mountains in our area.

Based on posts that were showing up in the Northern New England thread at the American Weather Forum yesterday, it was clear that many valley locations were starting to see accumulations as the temperatures came down. Temperatures dropped well into the 20s F overnight, so by morning, CoCoRaHS reports revealed valley accumulations of anything from a trace to as much as a few inches in a stripe across Northern Vermont.

An image showing a CoCoRaHS weather observations map with snow accumulations in Northern Vermont from an October snowstorm
As our latest fall snowstorm moved through the area yesterday and into the night, many sites in a stripe across Northern Vermont reported accumulations to CoCoRaHS this morning.
Posted on

Third round of early season snows for Vermont’s Green Mountains have been the most impactful yet

An image showing a mid-October 2024 snowstorm with over a foot of snow in the upper elevations of Stowe Mountain Resort in Vermont
An image showing mid-October snow accumulations in the mountains as viewed from the golf course webcam at Sugarbush Ski Resort in Vermont
The Sugarbush Golf Course Webcam was starting to reveal the mountain snows on Tuesday as our latest round of winter weather hit the Greens.

We’re wrapping up our third round of early season snows here in the Green Mountains of Vermont, and this cycle has certainly raised the bar with respect to accumulations. For several days, the weather modeling has shown the potential for a solid shot of snow at elevation, and as of Sunday’s runs, it was becoming more obvious that the event was coming together.

Personal observations related to this latest cycle of snow began for me on Sunday – I was up at Bolton Valley around 2,500’ and was getting into some frozen precipitation even down at that elevation. Right around that time, Powderfreak reported in from the upper elevations of Stowe Mountain Resort at the Gondola with a picture of big flakes coming down. As of later that afternoon, the snow level was around 3,200’, but it was expected to potentially mix all the way down to the valley floors by Monday. Late that evening, the 3,000’ Lookout plot on Mt. Mansfield was showing about a half inch of snow, so accumulations were clearly beginning.

By midday Monday, the Mt. Mansfield Lookout plot was at 2 inches of accumulation, and later that evening, snow was mixing in down to the valley floors as expected.

As of Tuesday, snow accumulations were pushing farther down the mountainsides, and the evening update from Powderfreak was that the 3,000’ Lookout plot had seen 7 inches of snow up to that point in the event. Snow was even mixing in with the rain down at our house at the 500’ elevation in the Winooski Valley, and our site recorded its first trace of snow on the season.

An image of mountain snows with fall foliage during a mid-October snowstorm at Stowe Mountain Resort in Vermont
By Tuesday, accumulations were starting to appear in the upper elevations of Mt. Mansfield, with snow levels continuing to drop and accumulations jumping as the event continued on into Wednesday.

Wednesday was the culmination of the event, with accumulations on Mt. Mansfield topping out around 15 inches. At Stowe Mountain Resort, the snowmobiles and snowcats were out trying to open the Gondola for summer/fall operations for the tourists. The snow depth at the famed Mt. Mansfield Stake came in at 12 inches, which is certainly solid for mid-October depths.  Powderfreak put together a great collection of photos from the upper elevations of Mt. Mansfield that nicely showed the accumulated results from this early season snowstorm.

This was a great early season event for the local mountains, and even at elevation, there were still enough leaves left on some of the trees to create excellent snowliage images.

Posted on

Another round of Vermont snows: accumulations have begun

An image of early October snow from the North Ridge Webcam at Killington Resort in Vermont

We had our first reported snow of the season here in Vermont over a month ago when flakes were spotted atop Jay Peak, but this latest round of winter weather has now brought us the first actual accumulations of the season. Our initial images of the accumulations came out yesterday morning when Powderfreak sent out some shots from the higher elevations of Mt. Mansfield during his usual Stowe Mountain Resort duties. Later in the day he sent along a nice image of the cloud ceiling and flakes falling on Spruce Peak while he was out on an afternoon hike. The snow was down to at least the 3,100’ elevation as of the afternoon, and with more moisture pushing into the spine of the Greens according to the radar, the potential for some additional overnight accumulations was looking good. The moisture seemed to be drifting a bit south though, and I saw a comment from Powderfreak that he felt the Central and Southern Greens would have the better chances for accumulations during the overnight period.

His thoughts were right on track, and by morning we were alerted with pictures from the Killington North Ridge Webcam of some more substantial accumulations. Up here in the Northern Greens, where the mid-level lifting mechanisms for precipitation weren’t as strong, the higher elevations of Mt. Mansfield picked up some ice accumulations and another coating of snow.

An image of early October snow from the North Ridge Webcam at Killington Resort in Vermont
A shot from Killington’s North Ridge Webcam of today’s new snow during our period of first snow accumulations for the 2024-2025 winter season. Accumulations began in the area yesterday and the Central Green Mountain s picked up some of the best snows overnight.

Looking at the data for the average date of first accumulations on Mt. Mansfield, October 9th is right on track for first accumulating snow on Mt. Mansfield – the mean date is October 11th ± 14 days, and the median date is October 10th. Last year was a bit on the later side on October 22nd, but the year before was very similar to this one with snow coming on October 8th.

So, the 2024-2025 snowfall season has begun here in Vermont, and we may see more snow in the coming days. The snowfall maps from the weather models are starting to suggest accumulations next week, and the National Weather Service office in Burlington mentions that there is possibility for accumulations above 2,000’ in their most recent area forecast discussion.

Posted on

First flakes of the season for Vermont’s Green Mountains

With our latest stretch of cool, early autumn weather, many valley locations have been seeing low temperatures in the 40s and even 30s F. Mount Washington in New Hampshire was even reporting freezing drizzle with a temperature of 30 F yesterday morning. Today there was some video of flakes at Jay Peak, which I believe are the first of the season I’ve seen reported here in Vermont. It looks like we have some nice warm fall days ahead, but Vermont’s 2024-2025 snow season is officially underway.

Posted on

First Vermont snows for the 2023-2024 winter season

An image from the famed snow stake on Mt. Mansfield in Vermont showing some of the first accumulating snow of the 2023-2024 winter season.

Today we got our first taste of the coming winter in the Northern Green Mountains. While Mt. Washington in New Hampshire has had a number of rounds of snow thus far in the autumn, and there were some reports of possible frozen precipitation in far northern Vermont a week or two ago, today saw the first notable accumulating snow on Mt. Mansfield. As of midafternoon today, Powderfreak reported that the snow level was down to ~2,500’, and he sent in an image of a half inch of accumulation at 3,000’ as of 3:30 P.M. By early evening he provided a few more pictures and indicated that the snow level had dropped below 2,000’. Up at the Mt. Mansfield Stake at roughly 3,700’, the report was that there was about an inch of accumulation over a third of an inch of ice. A check of mountain webcams around the area revealed that just about all the mountains were seeing flakes with accumulation, but those views will have to do for now.  Unfortunately, it’s been far too cloudy to get any nice shots of the snowy peaks from afar, but hopefully we’ll get to see them appear in a day or two.

An image from the famed snow stake on Mt. Mansfield in Vermont showing some of the first accumulating snow of the 2023-2024 winter season.
A shot of the famed Mt. Mansfield stake from today featuring the season’s first accumulating snow.

So, Oct 22 will go down as the date for our first accumulating Mt. Mansfield snow for the winter of 2023-2024, and we can now add it to the books and see how it compares to the averages. The stats for first accumulating snowfall of the season on Mt. Mansfield are below for comparison – today’s date of Oct 22 is later than the mean date of Oct 11, but well within 1 S.D., so quite normal in that regard. Assuming a normal distribution, about 25% of seasons will have later first snowfall dates than this one.

The dates of first accumulating Mt. Mansfield snow for some recent seasons are shown below as well, so this season sits later than the past few, but ahead of most of that stretch in the mid-2010s, which was a surprising run of later October dates.

Date of first accumulating Mt. Mansfield snow:

Mean:  10/11
Median:  10/10
Mode:  10/17
S.D.: 15 days
N:  67
Most Recent:  10/22
Most Recent Days Deviation:  +11
Most Recent # of S.D. Deviation:  +0.732
Most Recent S.D. % Lower:  76.8%
Earliest 8/28/1986
Latest   11/17/1985

Date of first accumulating Mt. Mansfield snow by season:

2008: Oct 3
2009: Sep 30
2010: Oct 7
2011: Oct 30
2012: Oct 8
2013: Oct 24
2014: Oct 26
2015: Oct 17
2016: Oct 26
2017: Oct 27
2018: Oct 13
2019: Oct 18
2020: Oct 17
2021: Oct 18
2022: Oct 8
2023: Oct 22

Posted on

First snows of the 2022-2023 season in the Green Mountains

I think it’s been a little while since we’ve had September snows here in the Green Mountains, but the mountains picked up some snow today for their first frozen accumulations of the 2022-2023 winter season.

The weather models have been indicating an early season shot of cool air visiting our area for several days now, with sub-freezing 850 mb temperatures dipping south of the Canadian border.  Residual moisture was expected to be around in the mountains as the colder air moved in to provide some flakes, and indeed that’s what we saw.

Reports of snow seemed most notable in the Central Greens around the Sugarbush area, and Powderfreak linked to a video of the flakes falling at Sugarbush Resort.  He also passed along a nice image of accumulations at the Battell Shelter on the Long Trail, which is in the Lincoln, VT area

A bit farther north on Mount Mansfield, the reports and pictures indicated that there was some glazing from accumulated ice.

After a fairly dry summer, the weather pattern has changed over the past few weeks to produce frequent synoptic precipitation, so let’s hope that sticks around we continue into the snow season!

Posted on

A second round of snow for the Green Mountains

An image of the Sugarbush upper mountain webcam showing some October snow on their snowboard as well as the boughs of the nearby evergreens
A view of the Sugarbush upper-mountain webcam from this afternoon showing a touch of new snow with what looks like some additional frozen precipitation weighing down the evergreen boughs

Exactly a week ago, we had our first round of mountain snows for the season here in the Green Mountains, and the latest system moving into the area brought the next round last night into today.  Morning reports came in to the Northern New England thread at the American Weather Forum, with flakes seen down to 1,500’ in Jackson, NH.  Powderfreak reported that the ski trails at Stowe were all white above ~2,400’.  It appears that much of Northern New England has been seeing snow today above ~2,500’, but the persistent clouds and precipitation haven’t quite given us the options for viewing the snow that we had with the previous system.  I was able to check out the Sugarbush upper mountain camera this afternoon and catch a view of the snow and drooping evergreen boughs from frozen accumulation, but that’s as much as I’ve been able to see from the valley.

​Based on Powderfreak’s comments of seeing some frozen precipitation last night at his place in the Stowe Village area, it sounds like we might have gotten our first frozen of the season down at our house in Waterbury as well.  I hadn’t seen anything before heading off to bed, and unfortunately, any frozen precipitation would likely have fallen in the wee hours of the morning as Powderfreak noted.

Posted on

First round of snow for the season in the Greens

An image showing mid-October snow accumulating at the upper mountain snowboard webcam at Sugarbush Resort in Vermont
Snow accumulating today at the upper mountain snowboard webcam at Sugarbush Resort

Temperatures have been well above average over the past several weeks here in Vermont, but cooler temperatures moved in on Sunday, and reports of flakes and snow accumulations started coming out of the local mountains today.  In the early afternoon, we heard reports of snow above 3,300’ on the Stowe Gondola, and the Sugarbush summit camera at 4000’ was showing accumulation.  Later in the day, accumulation was seen down to 2,000’ at Stowe, with snow falling at the base area at 1,500’.

Posted on

One more round of October snow for Vermont

An image of Mt. Mansfield in Vermont taken from the Burlington area in late October showing some valley foliage and snow in the mountain peaks from a recent storm
An image of Mt. Mansfield in Vermont taken from the Burlington area in late October showing some valley foliage and snow in the mountain peaks from a recent storm
An image of Mt. Mansfield today taken from my office at UVM showing signs from the recent storm and fall foliage still hanging on in the valley.

The local mountains picked up some more snow in what looks to be our final snowfall event for the month of October.  Down here in the valley at our house, I found a few flakes on my snow measurement board yesterday evening, but no measurable accumulation.  This storm was more notable down in Southern New England where there were totals up around 7 inches in the Worcester, Mass area.

Powderfreak got a beautiful picture of the slopes of Stowe Mountain Resort today, which he posted in the Northern New England thread at the American Weather Forums.  I grabbed a shot of Mt. Mansfield from the other side of the range when I was in my office today because it was so great to see the snow starting to come back to the peaks.

Posted on

Snow for the valleys in northern Vermont

An image of October snow on a picnic table in Waterbury, Vermont
An image of October snow on a picnic table in Waterbury, Vermont
I woke up this morning to find snow accumulating on grassy and elevated surfaces like this picnic table on our deck. It’s the first accumulation we’ve seen in the valley this season!

I woke up this morning to find snow on the grass and elevated surfaces at our house, most notably our picnic table out back on the deck.  This was the first snow I’ve seen at our house this season, and although our weather forecast did suggest there was some potential for accumulation, you never quite know how it’s going to play out in marginal situations like this one.

In any event, the snow stuck even down here at 500’, so it should have easily accumulated in the higher elevations.  I measured 0.6” on the boards at observations time, and it did look like it could have melted some since the point at which most of it fell.

This is about a week on the late side for average occurrence of first frozen precipitation here at our house, but just a day off for the average date of first accumulating snow, so it’s very typical in that regard.

Details from the 6:00 A.M. Waterbury observations:

New Snow: 0.6 inches

New Liquid: 0.09 inches

Snow/Water Ratio: 6.7

Snow Density: 15.0% H2O

Temperature: 34.0 F

Sky: Light Rain/Snow (1-2 mm flakes)

Snow at the stake: 0.5 inches