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Storm WatchWatching

Early-November North Atlantic System

13 resorts in the path, 18cm at the biggest. Watching — the models see it but do not yet agree closely.

+18CM

Predicted at La Grave

0–43cm, models far apart

Storm

Nov 9–14

13 resorts in the path

Peak

Nov 12

18cm at La Grave

Predicted

18cm

La Grave · 0–43cm, models far apart

Confidence

Watching

Updated

Nov 3, 18:30 UTC

S

SnowSure Forecaster

Written from the blend and the model spread · updated Nov 3, 18:30 UTC

We are watching a significant system for the Alps and wider Europe between 2026-11-09 and 2026-11-14. La Grave carries the biggest signal at 18.1cm over 2026-11-09 to 2026-11-12. 13 resorts are in the path; totals fall off away from the core. At La Grave, Saas-Fee, Diavolezza, Lagalb, Corvatsch, Verbier, Engelberg-Titlis and Andermatt the freezing level on the snow days sits between base and summit: snow on the upper mountain, rain possible low down. The call changes if model agreement loosens, the window slides later, or the freezing level trends higher.

Snow by day

Nov 8 – Nov 15, 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.

La Gravebase 1,470 m · summit 3,534 m

18cm snow4mm rain

Modelled at the summit, 3,534 m · snow to the base

Freeze
linem
Snow
/ raincm · mm
summit 3,534 mbase 1,470 m2,5812,0821,9682,23418434

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Snow

Fri

Nov 13

Snow

Sat

Nov 14

Dry

Sun

Nov 15

Snow

How the call moved-23cm
4118Nov 2Nov 3

snow Thu, Fri

Saas-Feebase 1,800 m · summit 3,550 m

10cm snow

Modelled at the summit, 3,550 m · snow to the base

Freeze
linem
Snow
/ raincm · mm
summit 3,550 mbase 1,800 m2,5371,9751,8801,80073

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Snow

Fri

Nov 13

Snow

Sat

Nov 14

Dry

Sun

Nov 15

Dry

How the call movedone reading
10Nov 3

snow Thu, Fri

Diavolezzabase 2,093 m · summit 2,978 m

10cm snow

Modelled at the summit, 2,978 m · snow to the base

Freeze
linem
Snow
/ raincm · mm
summit 2,978 mbase 2,093 m2,4952,0932,0932,093105

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Snow

Fri

Nov 13

Snow

Sat

Nov 14

Dry

Sun

Nov 15

Dry

How the call moved-27cm
3610Nov 3Nov 3

snow Thu, Fri

Lagalbbase 2,093 m · summit 3,006 m

9cm snow

Modelled at the summit, 3,006 m · snow to the base

Freeze
linem
Snow
/ raincm · mm
summit 3,006 mbase 2,093 m2,4732,0932,0932,093914

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Snow

Fri

Nov 13

Snow

Sat

Nov 14

Dry

Sun

Nov 15

Dry

How the call moved-27cm
369Nov 3Nov 3

snow Thu, Fri

Corvatschbase 1,797 m · summit 3,303 m

8cm snow

Modelled at the summit, 3,303 m · snow to the base

Freeze
linem
Snow
/ raincm · mm
summit 3,303 mbase 1,797 m2,4661,7971,7971,79784

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Snow

Fri

Nov 13

Snow

Sat

Nov 14

Dry

Sun

Nov 15

Dry

How the call movedone reading
8Nov 3

snow Thu, Fri

Verbierbase 1,500 m · summit 3,330 m

8cm snow3mm rain

Modelled at the summit, 3,330 m · snow above 2,415 m

Freeze
linem
Snow
/ raincm · mm
summit 3,330 mbase 1,500 m2,4151,8182,0122,0828351

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Mixed

Fri

Nov 13

Snow

Sat

Nov 14

Dry

Sun

Nov 15

Snow

How the call movedone reading
8Nov 2

snow Fri · rain low, snow high Thu (above about 2,415 m)

Engelberg-Titlisbase 1,050 m · summit 2,935 m

8cm snow9mm rain

Modelled at the summit, 2,935 m · rain on the whole mountain

Freeze
linem
Snow
/ raincm · mm
summit 2,935 mbase 1,050 m2,3851,4601,4991,87998

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Rain

Fri

Nov 13

Snow

Sat

Nov 14

—

Sun

Nov 15

Dry

How the call movedone reading
8Nov 3

snow Fri · rain Thu

Andermattbase 1,444 m · summit 2,961 m

7cm snow2mm rain

Modelled at the summit, 2,961 m · snow above 2,402 m

Freeze
linem
Snow
/ raincm · mm
summit 2,961 mbase 1,444 m2,4021,6041,6721,684325

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Mixed

Fri

Nov 13

Snow

Sat

Nov 14

—

Sun

Nov 15

Dry

How the call moved-56cm
637Nov 2Nov 3

snow Fri · rain low, snow high Thu (above about 2,402 m)

Aiguille du Midibase 1,035 m · summit 3,688 m

7cm snow11mm rain

Modelled at the summit, 3,688 m · snow above 2,575 m

Freeze
linem
Snow
/ raincm · mm
summit 3,688 mbase 1,035 m2,5751,9452,0552,14071153

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Mixed

Fri

Nov 13

Snow

Sat

Nov 14

—

Sun

Nov 15

Snow

How the call movedone reading
7Nov 2

snow Fri · rain low, snow high Thu (above about 2,575 m)

Saas Grund / Saas Almagellbase 1,559 m · summit 3,200 m

6cm snow3mm rain

Modelled at the summit, 3,200 m · snow above 2,471 m

Freeze
linem
Snow
/ raincm · mm
summit 3,200 mbase 1,559 m2,4712,0071,9321,887432

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Mixed

Fri

Nov 13

Snow

Sat

Nov 14

Dry

Sun

Nov 15

Dry

How the call movedone reading
6Nov 3

snow Fri · rain low, snow high Thu (above about 2,471 m)

St. Moritz – Corvigliabase 1,772 m · summit 3,057 m

6cm snow3mm rain

Modelled at the summit, 3,057 m · snow above 2,415 m

Freeze
linem
Snow
/ raincm · mm
summit 3,057 mbase 1,772 m2,4151,7721,7721,772635

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Mixed

Fri

Nov 13

Snow

Sat

Nov 14

Dry

Sun

Nov 15

Dry

How the call movedone reading
6Nov 3

snow Fri · rain low, snow high Thu (above about 2,415 m)

Grands Montetsbase 1,252 m · summit 3,275 m

5cm snow12mm rain

Modelled at the summit, 3,275 m · snow above 2,547 m

Freeze
linem
Snow
/ raincm · mm
summit 3,275 mbase 1,252 m2,5471,8991,9522,108512521

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Mixed

Fri

Nov 13

Snow

Sat

Nov 14

—

Sun

Nov 15

Mixed

How the call movedone reading
5Nov 2

snow Fri · rain low, snow high Thu (above about 2,547 m)

Les Arcsbase 1,200 m · summit 3,226 m

4cm snow14mm rain

Modelled at the summit, 3,226 m · snow above 2,551 m

Freeze
linem
Snow
/ raincm · mm
summit 3,226 mbase 1,200 m2,5512,0102,0682,172411322

Sun

Nov 8

—

Mon

Nov 9

—

Tue

Nov 10

—

Wed

Nov 11

—

Thu

Nov 12

Mixed

Fri

Nov 13

Mixed

Sat

Nov 14

Dry

Sun

Nov 15

Snow

How the call movedone reading
4Nov 2

rain low, snow high Thu, Fri (above about 2,551 m)

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.

Snow line against every mountain in Early-November North Atlantic System

Enlarge rain / snow line

The system

700mb flow — where the storm is, and what is steering it. Pins sized by forecast total.

700mb flow map for Early-November North Atlantic System

72-hour snowfall forecast for the same window.

Loading forecast map…
alps 72h snowfall forecast — Snowsure

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.

← All storm watches

Last updated 2026-11-03 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 2026-11-02 with 41cm forecast at La Grave.