Of the 11 winter storms we’re recorded so far this season at our site in the Winooski Valley, 3 have delivered more than a half inch of liquid equivalent, and they’ve had a notable upward trend in L.E. The November 21st storm brought 0.72” of L.E., the November 26th storm brought 1.14” of L.E., and this most recent storm that began on December 3rd brought more than 1.40” of L.E., with snowfall continuing tonight. These storms have really helped to build the mountain snowpack, and the snow depth at the Mt. Mansfield Stake is now more than a foot above average.
Bolton Valley was reporting another 14” of snow in 24 hours, and I popped up to the mountain this afternoon to check it out. Elevation has had quite an impact on the snow from this most recent storm, and the snow depth profile coming up out of the Winooski Valley is quite extreme. There’s really no snow at the base of the Bolton Valley Access Road aside from leftover piles, and it’s like that all the way up above 1,000’, and then the depth begins to ramp up. Here’s the snow depth profile I found on today’s ski tour:
It was more challenging to get depth readings in those upper elevations since the pack is getting pretty deep and there are a lot of different layers with varying consistencies, but that general trend I’ve seen on the mountain recently of almost an inch of depth increase per 100’ of elevation gain seems to generally be holding. The depths I was getting at 3,000’ also seem generally in line with the current reading at the Mt. Mansfield Stake of 33” at 3,700’.
I arrived up in the Village in the early afternoon to a maelstrom of huge flakes coming down in association with the back side of the storm system, so the mountain continued to tack on more to the snow totals. Fat skis were unquestionably the play for today. The accumulations from this storm definitely came in denser than the previous one, and while fats were of course great for stability, they were also really nice for planing on lower angle slopes and getting additional turns out of that snow. Even though you were only sinking maybe 6 to 10 inches into the powder because of the density, it was still slow going if the slope angle got too low. Steep slopes indeed offered the best turns, and the base is so dense and deep that even on those pitches there’s not much to worry about in terms of coverage on the upper mountain.
Down here in the valley at 500’ our precipitation has generally been snow, but the temperatures have been marginal, so thus far we’ve had less than an inch of accumulation. It’s been a different story at elevation though. We’d been watching the Bolton Valley Base Area Webcam since this morning, and more often than not it’s shown moderate to heavy snowfall with some big fat flakes. Even from the webcam you could tell it was accumulating, so I waited until the afternoon to let some of new snow build up, then I headed up to the mountain for some runs.
Coverage has mostly melted back at the base of the Bolton Valley Access Road at 340’, and the precipitation there was a mix of rain and wet snow, but cars coming down from the resort had at least a couple inches of fresh snow on them. As I ascended, somewhere in the 1,000’ to 1,500’ range, the precipitation instantly flipped to 100% snow, and you could tell that you’d hit a critical temperature threshold. Up in the Village at 2,000’ it was pounding big flakes. There were visibility issues just like yesterday, but while yesterday was due to thick low clouds and fog, today it was due to the snowfall.
Like yesterday, I skied again off the Mid Mountain Chair, and you could tell that the base snow had stiffened up where it had been groomed, at least up around 2,500’. From about 2,200’ and below, there was a notably softer base. At those higher elevations where the base was starting to tighten up, the new snow was definitely helping to take the edge off, but with on piste skier traffic, the fresh snow had been pushed around a lot, and you had to move off the groomed terrain to really take the best advantage of the new snow. In areas that hadn’t been groomed, there was no demarcation between the new snow and more recent layers below it, and my off piste adventures generally yielded turns in 12-14” of powder. The powder did get a bit denser as you dropped in elevation, but it was still quite manageable. I was on mid-fats and never even felt the need to switch to alpine turns; the snow was dry and consistent enough that Telemark turns were still comfortable all the way.
The freezing level was slowly dropping in elevation while I was out on the mountain, and by my last run it was only right down at base elevations where the groomed base still had that initial softness I’d encountered. Driving down the access road at closing time was a bit hairy with the pounding snow and fresh accumulations. The road accumulations finally started to abate around 1,500’, and road surfaces switched to just wet below that. The snowfall rate was easily an inch an hour at times, and even thought it occasionally slowed down for periods earlier in the afternoon, it looks like it averaged around that inch per hour mark because the resort was reporting 4 inches of new snow as of 4:00 P.M. closing. If the snowfall keeps up for a while this evening like it did this afternoon, they’ll have another great shot of snow to cover up the slopes by the morning.
With temperatures in the 30s F today, I was unsure if snow surfaces up at the mountain were going to soften. Dylan was up at Bolton Valley with some friends though, and when we texted him for an update, he said that indeed the snow had softened up. With that news, E and I headed up for a few runs this afternoon. Visibility was near zero on the mountain with low clouds and fog, but it did give the mountain that low light solstice/holiday feel.
Indeed the snow surfaces were great. We’d waxed our skis pretty thoroughly just in case, but we didn’t encounter any areas of sticky snow, it was just buttery smooth spring-style snow that you could really sink an edge into. I’m not sure if the snow was stiffer up high, but we were just lapping the Mid Mountain Chair, and everything on the lower mountain was great. The Wilderness Lift was also open today, so the natural snow terrain that they’ve opened is still in decent shape. Those surfaces that have softened will of course tighten up when temperatures drop back below freezing, but hopefully the storm coming in to the area tomorrow will do a decent job of covering up the current base. There certainly seems to be the potential for a decent resurfacing of the slopes with an inch or so of liquid equivalent in the forecast.
Last night we picked up another 4 to 5 inches of snow here in the valley from the weak cold front swinging through the region, and not surprisingly, the local mountains picked up twice that amount. Bolton Valley was reporting 10 inches of new snow atop the 15+ inches they’d received from the storm at the beginning of the week, and this new snow came in around 5% H2O according my morning liquid analyses. The new drier snow atop the base was a recipe for some great skiing.
Ty was off from work this afternoon, so we popped up to the mountain for a ski tour on Wilderness. Relative to the last storm, the Winooski Valley down by the base of the Bolton Valley Access Road did better with this event; whereas the coverage was somewhat patchy after the last storm, it was generally continuous with a few inches present this morning. I checked snowpack depths during the tour as usual, and it’s getting tougher to get measurements as the snowpack gets deeper, but with settling through the afternoon, depth increases seemed to be as follows relative to what I found yesterday:
So essentially, the snowpack depths I found today were about 500 feet lower in elevation than equivalent depths I found yesterday.
The Wilderness Uphill Route had seen plenty of skier traffic, and there was a dual skin track all the way to the Wilderness Summit that made conversation easy while we ascended. I was hoping to bring Ty over toward Fanny Hill again in line with the tour I’d done yesterday, but ski patrol had fenced off Upper Crossover. They really want touring to be confined to Wilderness, and I guess that’s not too surprising with the amount of operations they have going on Vista. With the amount of activity we saw going on all around the resort, it’s obvious that they’re going full tilt in preparation for re-opening on Friday with their partial-week schedule. I’m not sure how much of the mountain they’re going to open, but with the amount of natural snow out there, they’re going to have a lot of options.
In terms of the skiing, it was great. Conditions were already excellent yesterday, and now Mother Nature threw another 10 inches on top of that, so it’s about what you’d expect – lots of bottomless powder. We hit the Wilderness Summit just as sunset was approaching, so the views to the west were stupendous on such a fine afternoon. With the snow remaining deep, you wanted to shoot for intermediate pitches and above for decent turns. Based on my experience from yesterday, we did have full fat skis today, so that helped a lot with floatation and the ability to turn on those lower-angle slopes a bit more.
Tuesday: We are still reeling from the season’s first big snowstorm that smothered the northern Green Mountains in a heavy blanket of prime base building snow Sunday night to Monday morning. In addition to the 12-15″ we woke up to Monday morning, it appears we’re in for another 1-3″ today here in the upper elevations and – perhaps even more importantly – the return of cold temperatures on the ol’ “wet bulb” to fire up snowmaking efforts again. As we get closer to Friday we’ll keep you posted on trails and lifts for this weekend, but perhaps needless to say, we will definitely be expanding terrain this weekend, including Snowflake Lift, a small buildout in the Hide Away Terrain Park and several trails making their season debut. Stay tuned on that front.
No lift service today, but we’ve gone ahead and opened the Wilderness Designated Uphill Route so you can get some fresh pow laps in if your schedule allows.
Based on Powderfreak’s comment from yesterday about skiing on just the top 4” of the snow, and the density of the snow down from my liquid analyses down here at our house, I brought mid-fats for today’s tour. I figured I’d be riding Sierra Cement, but that wasn’t at all what I experienced. I’ll mention more about the snow density after covering the storm accumulations and snowpack depths.
There’s a very impressive elevation gradient with respect to the snow accumulations from this storm. Down at the base of the Bolton Valley Access Road at 340’, there isn’t even complete coverage on all aspects – I’d call the snowpack there T – 2”. I didn’t monitor the snowpack too closely on my ascent to the Village, but coverage was certainly continuous by 1,000’. Up in the Village around 2,000’ or so, I found 10-12” of snow, and here are some measurements at elevations during my tour:
2,000’: 10-12”
2,500’: 15-16”
3,000’: 18-20”
As the numbers reveal, there’s a huge snow depth gradient above 2,000’ – you’re basically looking at the depth going up about an inch every 100’ of vertical. Now those numbers are for total snowpack depth because I’m not sure if I’d be able to distinguish exactly what portion came from this most recent storm, but much of it was from this storm (as Bolton’s summit storm total of 15” would suggest).
The Wilderness Uphill Route has a beautifully packed skin track in place at this point, so travel on the snow is easy. And getting back to that discussion of snow density, it’s not Sierra Cement. In the higher elevations, the density going several inches down into the snowpack is sub-10% H2O powder – I’d put it somewhere in the 6 to 8% H2O range if I had to guess. You sink well down into it, I’d say a good foot, and it’s nicely right-side-up. As I mentioned, I brought mid-fats, but fat skis are actually the tool you want (or a snowboard, etc.).
It was quickly obvious on my ascent that some decent pitch would be required for turns, so I toured all the way to the top of Wilderness. I checked out Bolton Outlaw, and it had seen enough traffic to track it up pretty thoroughly, so I continued on to Upper Fanny Hill and put the third set of tracks down there. I continued on to Fanny Hill proper and got probably the fourth set of tracks there. The powder skiing is fantastic as long as you’ve got at least intermediate pitch. Shallower than that and the powder is just too deep to keep decent momentum (and that’s another reason to bring fat skis because you can make use of that extra floatation).
In terms of snow quality, it’s as I described at elevation, and of course the overall depth decreases as you descend, but the quality stays high right down to 2,000’. Only just as you approach 2,000’ do you encounter any sort of snow quality issues, and there’s a slight crème brûlée crust in there a couple of inches below the surface where there must have been a bit of warming. At that elevation it’s still quite subtle and you can essentially ignore it.
As Bolton’s snow report indicates, the resort is considering expanding their open terrain thanks to this storm, and moving to some of the natural snow terrain is pretty obvious at this point. We’ll have to see which terrain can hold up to lift-served traffic, but I can’t believe there’s not more talk about this storm and what it could do for the start of the season. This storm was a total liquid equivalent bomb, and not only that, the snow is good to go. This storm was an absolute season-starter. Sometimes storms like this come in so dense or warm, that the tenor will be “This is going to be a great base as soon as we get some good snow on top of it”. Well, there’s no need to wait, the snow is already good to go, and it’s currently getting covered more with the snow from today. It’s not every day you get such a base-building storm that immediately offers up fantastic midwinter skiing. We didn’t even have to wait until December for this one – it somehow snuck in during November, which is another great bonus.
The mountain snowpack that had been building up over the first half of the month melted back somewhat in the middle elevations at the end of last week, but this latest winter storm seemed to have the potential to replenish it. As of this morning, we’d picked up roughly 4 inches of new snow composed of 0.6 inches of liquid at the house, so the local mountains should have added enough new snow to set the table for more low-angle touring in the powder. Bolton Valley was reporting 3 to 4 inches of new snow overnight, and 5 inches in the past 48 hours. Assuming a similar density of snow to what fell at our house, plus whatever snow was in place before, it definitely felt like it was worth a visit. I didn’t expect the snow quality to be outstanding enough to suggest that E or the boys should join me, so I expected it to be a solo tour. As I was about halfway through preparing my gear, Ty woke up and let me know that he was actually interested in getting in some turns before work, so that meant I’d have some company!
In the Winooski Valley at the base of the Bolton Valley Access Road, we found 1 to 2 inches of new snow from this most recent storm, and up in the Village, total depths were 4 to 5 inches. Temperatures this morning were around the freezing mark, with a mix of wintry precipitation types as we set out on our tour. We found that snow depths increased a bit with elevation, hitting 5 to 6 inches around 2,500’ and 6 to 7 inches where we topped out around 2,700’.
The powder skiing was decent, with snow that was relatively dense but not sloppy or soggy on the upper half of our tour. The density did increase a bit more as we descended back toward the base around 2,000’, but the snow still hadn’t progressed to that spring-style sticky stuff. I had freshly waxed up my skis in the morning, and that did appear to help give me an slightly easier time than Ty, who hadn’t waxed.
While today’s powder was decent, the snow I found while out ski touring last week was definitely superior. I think that last week there was a touch more base, the snow overall was a bit deeper, and most importantly, the snow was notably drier. All those factors came together to set that skiing above the quality of what we found out there today. This dense snow that we just received does have the water content to set up a more substantial base though, and it’s really going to be great with some additional rounds of snow on top. The models do suggest that there are some events in the pipeline over the next week, so we’ll see what the mountains get from those.
I wasn’t exactly sure where on Bolton’s backcountry network today’s ski tour was going to take me, but my plan was to start with an ascent up to the start of the C Bear Woods, and then go from there. I haven’t toured in that part of the Network yet this season, but the ridgeline there tops out around 2,400’, so starting in the lower Village, it would give me a good sampling of the snowpack in the 2,000’ to 2,400’ elevation range.
For my tour back on Monday on some of the lower sections of the Network I topped out around 1,800’ and generally found 6 to 12 inches of powder, and the tenor of the powder skiing was that something with a bit more pitch would be appropriate for the snow depth. With continued rounds of snow accumulation over the past couple of days (and an additional 2 to 3 inches reported in the past 24 hours at Bolton as of this morning’s update), I figured the powder might even be a notch up from where it had been at that point.
It was midmorning by the time I arrived at the Village, and temperatures were very comfortable in the lower 30s F. Being the big holiday week, the resort was really humming, and they were already parking folks in the lower Nordic Center parking lot. That worked out well for me though, since it’s right on the Broadway Trail that links in nicely with the heart of the Backcountry Network.
Around 2,000’ in the open areas of the Village, the depth of the surface snow was quite variable between the effects of the wind and sun, but in general I found 5 to 6 inches of powder over a consolidated base. There wasn’t any obvious rain crust, but there was a denser layer below the powder. That layer generally wasn’t present in the trees, so I assume it was from wind and sun. Up at 2,400’ I’d say powder depths were about the same as what I found in the 1,500’ to 1,800’ elevation range on Monday, so between additional accumulations and settling, I guess things roughly held pat at that level. The pitches near the top of the ridge there are up in the black diamond range, and I think the uppermost parts of the ridgeline were a bit windswept because the snowpack wasn’t sufficient for confident turns in that area. Noticing that, I headed southward to the right of the main C Bear Woods entrance into some other areas of glades to shallow out my overall run. Intermediate pitches offered nice turns, and the snowpack easily supported that type of skiing. The best turns of that descent were in the lower slopes among the moderate and lower angle pitches as I got back toward Brook Run.
I’d left the option open to extend my tour up toward some of the Bryant Trail terrain, but it was approaching midday and the powder was already started to get denser and a bit sticky as the temperatures pushed above freezing. As I headed to the main base area, it was turning into a fantastic day with breaks of sun and temperatures moving into the 30s F. That’s a pretty nice combination for the holiday visitors to have comfortable temperatures and some decent snowpack, and it will be interesting to see how this holiday week plays out overall for visitation at the local resorts. It’s been pretty sweet to have some daily refresher snowfalls recently to bolster the snowpack, and the snow reports I’ve seen from the resorts around here have indicated that it’s been allowing them to continue to open new terrain and expand the trail count. Visitors to the slopes should generally be treated to some comfortable temperatures for the remained of the holiday week, which I think many would take over the subzero spells that can often occur around the start of the new year. It looks like anyone going out on Sunday might have to dodge a bit of rain though based on the current forecast.
This may be one of the nicer holiday week’s we’ve had recently in terms of the quality of the skiing. Looking at my notes, I’ve had a half dozen backcountry ski tours in about the past ten days, and that’s pretty decent because sometimes the backcountry doesn’t even get rolling until January or February. On average, it should get going (at least on low and moderate angle terrain) in mid-December here in the Northern Greens, but the past three seasons haven’t hit 24 inches at the Mt. Mansfield Stake until January. Technically, the stake only hit the 24-inch mark for the first time this season on Tuesday, but it’s been hovering in the 20-inch range since mid-month when Winter Storm Diaz hit, and the snowpack came together in such a way that those 20-ish inches were sufficient to put a lot of the local backcountry terrain in play for quality turns.
I hadn’t been out to the mountain since Winter Storm Elliot finished up, and although it was a mixed system in terms of precipitation, I was encouraged by how it played out for the local snowpack. The storm brought roughly 8 inches of snow to our place down in the valley, and represented a net gain in both snowpack depth and snowpack liquid equivalent. Bolton Valley was reporting 12 inches of new snow from the system, so the mountains must have fared at least as well as the valleys.
With some rain during the middle part of the system, I was wondering about the condition of the snow surfaces, so today I decided on a relatively low angle tour on the Bolton Valley Backcountry Network to get a feel for how the new snow had settled in. I started at the Catamount Trail access point on the Bolton Valley Access Road, which is down around 1,200’, and toured up to around the 1,800’ elevation a bit above Caribou Corner. Those are relatively low elevations overall, and 1,200’ is below even the Timberline Base, so it would certainly be a challenging stress test to speak to the quality and utility of the snowpack.
At 1,200’ at the parking area I found about 4 to 5 inches of powder above the base snow, and most notably, I couldn’t really find a rain crust. There was a clear demarcation between the consolidated base and the surface snow, at least around the parking area where the snowpack is a bit more exposed to snow maintenance and sunshine. The depth of the powder quickly increased as I ascended, and by about 1,500’ I was easily finding 6 to 12 inches of powder. It became hard to judge the depth of the surface snow though, because I typically couldn’t even find an interface between the new snow and the underlying snowpack; the wetter precipitation from the storm must have either drained well or transitioned smoothly to snow. I’d say total snowpack depth was probably around 10 to 12 inches at 1,200’ and 12 to 16 inches at 1,800’, but there’s plenty of substance to it, so it’s quite skiable up to moderate angles in maintained areas, and obviously it’s going to be notably deeper up above 2,000’.
In terms of the skiing, the powder was actually too deep for the lowest angle sections on the tour, and I’d have to use existing skin tracks or other skier tracks to maintain or pick up speed. The next tier of pitches skied great with the snow though. I typically like that tour up to Caribou Corner when there’s about 4 to 6 inches of powder over a consolidated base, so this really was a bit deeper than that, and I’d say folks should move on up to moderate angle terrain for the best backcountry turns, especially with additional snow falling over the next couple of days. There was light snow falling during my tour in the form of those big fluffy flakes, and I see that the resort reported an inch of new this morning.
The season snowfall seems roughly on track at our house observations site as of Christmas. Snowfall to date on the 25th was 40.1” vs. a mean of 40.4”, and snowpack depth at 10.5” was a few inches above average. The SDD for the season were a little behind average pace at 146.5 SDD vs. the 162.2 SDD average. I can see in the data that the SDD deficiency is largely due to that slow first half of December, because we were still ahead of average SDD as of the end of November, and then the pace started to fall off before picking up again in the second half of the month.
Today we decided to do some lift-served skiing for a change of pace, and E joined Ty and I for some Tele runs in the afternoon. Bolton has opened a number of additional trails due to all the recent snow, but the main route off the Vista Summit is still Sherman’s Pass, and we started with that since we wanted to warm up with some mellow terrain. The manmade snow on Sherman’s was pretty typical and firm, but we did venture over toward the lower slopes of Wilderness to check out the natural snow options. There was plenty of coverage since those lower slopes of Wilderness are only up to moderate angle, and the quality difference in the snow was night and day. At Wilderness you had nice chalky snow where it was skier packed, and powder off to the edges – it was soft and quiet snow, and unlike the terrain with manmade snow, you could really sink your edges in easily. That was unquestionably what kept us coming back for more, and if we could have gotten to that terrain more easily by just riding the Mid Mountain Chair instead of the Vista Quad, we certainly would have done it.
Ty was extremely excited about his Telemark turns today, and he really felt that he was getting them dialed in. He talked a lot about the nuances of technique with E and I after the session. One of the comments I made was that this fairly concentrated period we’ve just had in which he’s had several outings on his Telemark skis has been really good for his development. We’ve often seen with students that getting in more back-to-back ski days vs. having them more spread out can really assist in improving their skills, and I think that was the case here. The great snow we’ve had in the backcountry and on piste has helped in that regard as well, since he’s had the confidence to work on his turns without worrying about much else getting in the way.
Today I went for another solo tour on the Bolton Valley Backcountry Network, and I decided to check out the Gotham City area since I hadn’t been there yet this season. Prior to this point we’ve been pretty spoiled with fresh snow every day since the start of Winter Storm Diaz, so you could detect just the subtlest bit of settling/aging to the powder and snowpack in general. That’s splitting hairs of course because the powder was still deep and bottomless, and you’d probably only notice if you’d been paying very close attention to the feel of the snowpack over the preceding days. There were also a few more tracks around since there hadn’t been that fresh dose of powder to cover them up.