
Mid-November North Atlantic System
14 resorts in the path, 100cm at the biggest. Likely — the models agree on this one; likely at 8 of 14 resorts.
+100CM
Predicted at Stranda
42–173cm across the models
Storm
Nov 13–20
14 resorts in the path
Peak
Nov 19
32cm at Courmayeur
Predicted
100cm
Stranda · 42–173cm across the models
Confidence
Likely
Likely at 8 of 14 resorts
Updated
Nov 10, 18:30 UTC
SnowSure Forecaster
Written from the blend and the model spread · updated Nov 10, 18:30 UTC
Current prediction: 42–173cm for Courmayeur between 2026-11-16 and 2026-11-20, 100cm our central figure. The biggest day is 2026-11-19 at 32cm. Also in the path: La Thuile 99cm, Méribel 98cm, Grands Montets 94cm, and 10 more. Confidence is likely: the models agree on both the window and the magnitude. By resort: Likely at 8 of 14 resorts. These figures are re-read from the latest model blend; each entry in the log keeps what we said at the time.
Forecast log
Every entry, newest first. Nothing is overwritten.
- Day 8·Nov 10·Likely·41cm(-28)
Day 8: totals down 28.2cm; confidence likely, window opens Nov 13
Day 8: the top total has decreased by 28.2cm since our last update, but the window has shifted to open one day earlier, now running from November 13 to November 16. Current predictions show Stranda leading with 40.5cm, followed closely by Voss at 37.2cm and Myrkdalen at 35.5cm over the window. All resorts have shown a trend on track with likely confidence. As we approach the event, we will monitor any changes in the forecast models, particularly regarding snowfall distribution and timing. The biggest day is expected on November 15, with Stranda and Voss both projected to receive significant totals.
Window Nov 13–16 · Stranda
- Day 7·Nov 9·Watching·69cm(+31)
Day 7: totals up 30.8cm; confidence watching, window holds
Day 7: totals are up 30.8cm since our last entry, and the window remains unchanged from November 14 to November 20. Current predictions show La Grave leading with 68.7cm, followed by Alpe d'Huez at 59.4cm and Les Deux Alpes at 54.5cm, all with the biggest day expected on November 20. Aiguille du Midi, Voss, and Stranda are also included in this window, but their totals are lower. We are watching the confidence level closely as it has shifted to watching, indicating some uncertainty in the models. The next few days will be crucial for refining these totals.
Window Nov 14–20 · La Grave
- Day 6·Nov 8·Likely·38cm(-39)
Day 6: totals down 39cm, 8–69cm for Isola 2000
Day 6: totals down 39cm at Isola 2000, the window slid 3 days later, 5 resorts joined the path. Current prediction: 8–69cm for Isola 2000 between 2026-11-14 and 2026-11-17, 38cm our central figure. The biggest day is 2026-11-17 at 27cm. Also in the path: Prato Nevoso 37cm, Artesina 36cm, Stranda 35cm, and 2 more. Confidence is likely: the models agree on both the window and the magnitude. By resort: Likely at 3 of 6 resorts. On day one we said 39cm from 2026-11-15; that is the number we are measured against. What to watch next: whether the models hold the window, whether the low tracks closer to the core resorts, and the freezing level in the days before it arrives. 6 days to go.
Window Nov 14–17 · Isola 2000
- Day 5·Nov 7·Likely·77cm(+39)
Confidence likely: 76.9cm for Stranda Nov 11–16
Day 5: totals up 39.1cm for Stranda since the previous entry, and the window held. We are now predicting a total of 76.9cm for Stranda over the window from November 11 to November 16, with the biggest day expected to be November 14 at 21.3cm. Confidence remains likely, and the trend is strengthening as we approach the event. As we look ahead, we will monitor the actual snowfall amounts closely as the storm approaches. The current forecast indicates a significant accumulation, but we will keep an eye on any shifts in the models that could affect timing or totals.
Window Nov 11–16 · Stranda
- Day 4·Nov 6·Likely·38cm(-1)
Confidence likely: 37.8cm for Stranda Nov 11–14
Day 4: the top total for Stranda is down 1.3cm since the previous entry, but the window has moved 4 days earlier. We now predict 37.8cm over the window from November 11 to November 14, with a range of 9.5–80.5cm. The biggest day is expected to be November 13, with 15.1cm. While confidence is likely, we note a weakening trend in the data, so we will continue to monitor the situation closely. Next, we will watch for any shifts in model outputs as we approach the start of the window.
Window Nov 11–14 · Stranda
- Day 3·Nov 5·Watching·39cmFirst prediction
Confidence builds: 39.1cm for Stranda Nov 15–18
THE PREDICTION: We anticipate a total of 39.1cm for Stranda over the window from November 15 to 18, with a range of 3.8–57.3cm. The current pattern suggests a favorable setup for snowfall across the Alps and wider Europe, with conditions trending on track for this event. Stranda stands to benefit the most, particularly on November 17, when we expect the biggest day with 30.3cm. Other resorts may see varying amounts, but they are not listed here, so we focus on Stranda. A shift in the forecast could occur if the models diverge significantly in the coming days, which would impact our confidence in these totals.
Window Nov 15–18 · Stranda
Snow by day
Nov 12 – Nov 21, with a day either side. For each resort: where the freeze line sits against the mountain, then what falls — snow in cm, rain in mm — and the day read from those two numbers.
Courmayeurbase 1,224 m · summit 2,755 m
100cm snow12mm rain
Modelled at the summit, 2,755 m · snow above 1,880 m
linem
/ raincm · mm
Thu
Nov 12
Mixed
Fri
Nov 13
Mixed
Sat
Nov 14
—
Sun
Nov 15
Snow
Mon
Nov 16
Snow
Tue
Nov 17
Mixed
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Snow
snow Sun, Mon, Wed, Thu, Fri · rain low, snow high Fri, Tue (above about 1,880 m)
La Thuilebase 1,450 m · summit 2,600 m
99cm snow21mm rain
Modelled at the summit, 2,600 m · snow above 1,943 m
linem
/ raincm · mm
Thu
Nov 12
Mixed
Fri
Nov 13
Mixed
Sat
Nov 14
—
Sun
Nov 15
Snow
Mon
Nov 16
Snow
Tue
Nov 17
Mixed
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Snow
snow Sun, Mon, Wed, Thu, Fri · rain low, snow high Fri, Tue (above about 1,943 m)
Méribelbase 1,400 m · summit 2,952 m
98cm snow24mm rain
Modelled at the summit, 2,952 m · snow above 2,287 m
linem
/ raincm · mm
Thu
Nov 12
Rain
Fri
Nov 13
Mixed
Sat
Nov 14
Dry
Sun
Nov 15
Mixed
Mon
Nov 16
Snow
Tue
Nov 17
Mixed
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Snow
snow Mon, Wed, Thu, Fri · rain low, snow high Fri, Sun, Tue (above about 2,287 m)
Grands Montetsbase 1,252 m · summit 3,275 m
94cm snow4mm rain
Modelled at the summit, 3,275 m · snow above 2,108 m
linem
/ raincm · mm
Thu
Nov 12
Mixed
Fri
Nov 13
Snow
Sat
Nov 14
—
Sun
Nov 15
Mixed
Mon
Nov 16
Snow
Tue
Nov 17
Snow
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Snow
snow Fri, Mon, Tue, Wed, Thu, Fri · rain low, snow high Sun (above about 2,108 m)
Glacier 3000 - Les Diableretsbase 1,300 m · summit 3,000 m
90cm snow2mm rain
Modelled at the summit, 3,000 m · snow to the base
linem
/ raincm · mm
Thu
Nov 12
Mixed
Fri
Nov 13
Snow
Sat
Nov 14
Dry
Sun
Nov 15
Snow
Mon
Nov 16
Snow
Tue
Nov 17
Snow
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Snow
snow Fri, Sun, Mon, Tue, Wed, Thu, Fri
La Plagnebase 1,250 m · summit 3,044 m
75cm snow19mm rain
Modelled at the summit, 3,044 m · snow above 2,229 m
linem
/ raincm · mm
Thu
Nov 12
Mixed
Fri
Nov 13
Mixed
Sat
Nov 14
Dry
Sun
Nov 15
Mixed
Mon
Nov 16
Snow
Tue
Nov 17
Mixed
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Snow
snow Mon, Wed, Thu, Fri · rain low, snow high Fri, Sun, Tue (above about 2,229 m)
Verbierbase 1,500 m · summit 3,330 m
72cm snow
Modelled at the summit, 3,330 m · snow to the base
linem
/ raincm · mm
Thu
Nov 12
Mixed
Fri
Nov 13
Snow
Sat
Nov 14
Dry
Sun
Nov 15
Snow
Mon
Nov 16
Snow
Tue
Nov 17
Snow
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Dry
snow Fri, Sun, Mon, Tue, Wed, Thu, Fri
Les Arcsbase 1,200 m · summit 3,226 m
71cm snow10mm rain
Modelled at the summit, 3,226 m · snow above 2,010 m
linem
/ raincm · mm
Thu
Nov 12
Mixed
Fri
Nov 13
Mixed
Sat
Nov 14
Dry
Sun
Nov 15
Snow
Mon
Nov 16
Snow
Tue
Nov 17
Mixed
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Snow
snow Sun, Mon, Wed, Thu, Fri · rain low, snow high Fri, Tue (above about 2,010 m)
Crans-Montanabase 1,500 m · summit 2,874 m
71cm snow
Modelled at the summit, 2,874 m · snow to the base
linem
/ raincm · mm
Thu
Nov 12
Mixed
Fri
Nov 13
Snow
Sat
Nov 14
Dry
Sun
Nov 15
Snow
Mon
Nov 16
Snow
Tue
Nov 17
Snow
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Snow
snow Fri, Sun, Mon, Tue, Wed, Thu, Fri
Alpe d'Huezbase 1,860 m · summit 3,330 m
66cm snow
Modelled at the summit, 3,330 m · snow to the base
linem
/ raincm · mm
Thu
Nov 12
Mixed
Fri
Nov 13
Snow
Sat
Nov 14
Dry
Sun
Nov 15
Snow
Mon
Nov 16
Snow
Tue
Nov 17
Snow
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Dry
snow Fri, Sun, Mon, Tue, Wed, Thu, Fri
La Gravebase 1,470 m · summit 3,534 m
61cm snow5mm rain
Modelled at the summit, 3,534 m · snow to the base
linem
/ raincm · mm
Thu
Nov 12
Snow
Fri
Nov 13
Snow
Sat
Nov 14
Dry
Sun
Nov 15
Snow
Mon
Nov 16
Snow
Tue
Nov 17
Snow
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Dry
snow Fri, Sun, Mon, Tue, Wed, Thu, Fri
Les Deux Alpesbase 1,300 m · summit 3,408 m
55cm snow15mm rain
Modelled at the summit, 3,408 m · snow above 2,393 m
linem
/ raincm · mm
Thu
Nov 12
Mixed
Fri
Nov 13
Mixed
Sat
Nov 14
Dry
Sun
Nov 15
Mixed
Mon
Nov 16
Snow
Tue
Nov 17
Mixed
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Dry
snow Mon, Wed, Thu, Fri · rain low, snow high Fri, Sun, Tue (above about 2,393 m)
Vossbase 284 m · summit 964 m
26cm snow20mm rain
Modelled at the summit, 964 m · snow above 662 m
linem
/ raincm · mm
Thu
Nov 12
Snow
Fri
Nov 13
Dry
Sat
Nov 14
Mixed
Sun
Nov 15
Mixed
Mon
Nov 16
Snow
Tue
Nov 17
Snow
Wed
Nov 18
Dry
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Snow
snow Mon, Tue, Thu, Fri · rain low, snow high Sat, Sun (above about 662 m)
Narvikbase 136 m · summit 1,006 m
3cm snow
Modelled at the summit, 1,006 m · snow to the base
linem
/ raincm · mm
Thu
Nov 12
Dry
Fri
Nov 13
Dry
Sat
Nov 14
Dry
Sun
Nov 15
Snow
Mon
Nov 16
Snow
Tue
Nov 17
Snow
Wed
Nov 18
Snow
Thu
Nov 19
Snow
Fri
Nov 20
Snow
Sat
Nov 21
Snow
snow Sun, Mon, Tue, Wed, Thu, Fri
snowrain low, snow highraindryThe dots are the freeze line — the height where rain turns to snow. Solid: straight from the models. Hollow: estimated from temperature. Above the summit line it rains on the whole mountain; below the base line it snows all the way down. Blue bars are snow in cm, amber bars rain in mm; the totals above are their sums.
Rain / snow line
Base to summit for each mountain, with the snow line cut across them.
The system
700mb flow — where the storm is, and what is steering it. Pins sized by forecast total.
72-hour snowfall forecast for the same window.

In the path
Forecast, not observation — none of this has fallen yet. Totals are across the window. We will post what fell when the window closes.
LiveCourmayeurbiggest day 32cm on 19 Nov · newPredicted100cm42–173cm across the models
LiveLa Thuilebiggest day 32cm on 19 Nov · newPredicted99cm51–165cm across the models
LiveMéribelbiggest day 33cm on 19 Nov · strengtheningPredicted98cm56–172cm across the models
LiveGrands Montetsbiggest day 35cm on 19 Nov · delayedPredicted94cm46–137cm across the models
LiveGlacier 3000 - Les Diableretsbiggest day 36cm on 19 Nov · newPredicted90cm40–132cm across the models
LiveLa Plagnebiggest day 32cm on 18 Nov · newPredicted75cm50–123cm across the models
LiveVerbierbiggest day 25cm on 19 Nov · delayedPredicted72cm43–127cm across the models
LiveLes Arcsbiggest day 31cm on 18 Nov · newPredicted71cm51–97cm across the models
LiveCrans-Montanabiggest day 35cm on 19 Nov · newPredicted71cm34–104cm across the models
LiveAlpe d'Huezbiggest day 28cm on 17 Nov · delayedPredicted66cm30–106cm across the models
LiveLa Gravebiggest day 24cm on 18 Nov · delayedPredicted61cm29–91cm across the models
LiveLes Deux Alpesbiggest day 22cm on 18 Nov · on trackPredicted55cm25–88cm across the models
LiveVossbiggest day 12cm on 15 Nov · on trackPredicted26cm2–60cm, models far apart
LiveNarvikbiggest day 3cm on 15 Nov · newPredicted3cm0–6cm, models far apart
Last updated 2026-11-10 18:30 UTC. SnowSure scans a blend of seven weather models twice daily and flags systems clearing 30cm over 72 hours, three to fourteen days out. This watch opened on 2026-11-10 with 43cm forecast at Courmayeur.





