Avalanche forecast for Sunnmøre Saturday 2021-01-09

Highest danger level per day:
3
Considerable
Published:

The avalanche danger will increase as the wind picks up! Avoid leeward slopes if you notice alarm signals like shooting cracks and collapsing snow. Wind deposited snow are covering persistent week layer. Small avalanches near the treeline can have big consequenses. Naturally triggered avalanches may occur.

Illustrasjon av ferdselsråd Avoid terrain steeper than 30 degrees and runout zones. Remote triggering is likely.
Illustrasjon av ferdselsråd Avoid terrain traps.

Persistent weak layer (slab avalanches)

Buried weak layer of surface hoar

Read more about the avalanche problem
2 - Medium
Low additional load
Specific steep slopes
Likely

What are avalanche problems?

Observations the last 3 days (map placed)

1 mm precipitation.
Calm/light breeze from southeast.
-12 °C to -4 °C at 1400 m a.s.l.
Plus degrees up to 100 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no
8 mm precipitation.
Breeze from south., change to moderate gale from the southwest during renoon.
-13 °C to -4 °C at 1400 m a.s.l.
Plus degrees up to 400 m a.s.l. during the evening.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Sunnmøre / Volda

Snow

08.01.2021 kl. 12:26

390 masl

Ingrid@NVE (*****)

Image Of Snow Cover
Image 1 of 1 Of:  Snow Cover Copyright:  Ingrid@NVE Comment:  Overflaterim

Snow Cover

Surface hoar on a soft surface Det er store rimkrystallar på mjukt underlag (>1cm) som har stor utbreiing.

ObsID: 248202

Sunnmøre / STRANDA

Snow

08.01.2021 kl. 12:06

519 masl

callewernhoff (Unknown)

Image Of Snow Cover
Image 1 of 2 Of:  Snow Cover Copyright:  carlwernhoff
Image Of Snow Cover
Image 2 of 2 Of:  Snow Cover Copyright:  carlwernhoff Comment:  Partially faceted snow, ca 10cm on snow surface. Poorly bonded to old mf crust

Snow Cover

20 cm in total No snowdrift 0 cm new snow Snow line at 350 masl Near surface facets Dry 10cm of faceted sugar snow with poor bonding to old meltfreeze snow under, on shaded aspects in and around treeline. New higher density snow during the weekend on top of this faceted undisturbed snow on steep shaded aspect around treeline could become a dangerous mix with trees being a added hazard.

ObsID: 248083

Sunnmøre / Ålesund

Snow

07.01.2021 kl. 09:20

628 masl

PetterHorthe (Unknown)

Snow Cover

No snowdrift 0 cm new snow Some loose snow (1-10cm) Dry 10cm+ løssnø oppå et relativt hardt underlag i sunnmørsbotn. Noe hardere overflate og litt flakdannelse der vinden har tatt mer. Mye overflaterim i skogen og litt innover dalen, ellers lite i høyden.

Weather

No precipitation -5 °C -10 grader på parkeringa ved campingen.

ObsID: 247901

Sunnmøre / ØRSTA

Snow

06.01.2021 kl. 19:46

1115 masl

Stig Løland@obskorps (****)

Image Of Snow Cover
Image 1 of 3 Of:  Snow Cover Copyright:  Stig Løland@obskorps
Image Of Snow Cover
Image 2 of 3 Of:  Snow Cover Copyright:  Stig Løland@obskorps Comment:  Fingersida. Avblåst på Noklane til venstre i bildet. Fint skiføre.
Image Of Snow Profile
Image 3 of 3 Of:  Snow Profile Copyright: 

Avalanche Activity

6. Jan. During the day (+01:00) No avalanche activity

Snow Cover

50 cm in total No snowdrift Snow line at 400 masl Very much loose snow (>30cm) Dry det ligg eit par cm snø ned til 0. Fint skiføre frå 400 litt inn på halvøya. Førsteinntrykk på første obs etter ferie: ujamn fordeling i terrenget, ryggar er avblåst, men det ligg meir i søkk og renner. I renner er det nok snø til str 2, men snødekket virkar å ha ei gunstig oppbygging, med laus snø i toppen og gradvis hardare nedover. Ingen lagdeling å snakke om. 15-30 cm laussnø. Rim på toppen her og der. Mulig det har vore snøtransport over 1100.

Avalanche Danger Assessment

1 Low Snødekket framstår generelt som stabilt, men det er mulig at det har vore vindtransport i høgda eller lenger inn i regionen. Lite endringar for morgondagen. Forecast correct

Danger Sign

No signs observed

Avalanche Problems

Dry slab avalanche Buried weak layer of new snow Within half a meter Easy to trigger 1 - Small N, NE, E, SE, S, SW, W, NW above 1000 masl Dersom vind har flytta snø er dette det mest sannsynlige scenarioet. Eg såg ingen teikn til dette i dag, men rart om ikkje det fins noko vindtransport ein stad.

Weather

No precipitation -5 °C 0 m/s from E ← 90% clouds

Tests

ECTX Good

Snow Profile

40 cm F/1F DF 0 mm D, 20 cm P MF 2 mm

ObsID: 247793

The bulletin does not include a detailed text about the avalanche conditions. This is only given in Norwegian. Translate it using google translate if you like. The text result will be informative, and most likely amusing

For planning your trip and recognizing avalanche terrain, use maps.

Norway has 1:50 000 maps for the whole country. Maps can be bought at bookstores and sports shops, or printed from the net.

For slope angle maps, download the app Varsom Regobs on App Store | Google Play or see our slope angle map at senorge.no ("helning" means slope angle).

Modelled snowpack and historic and current weather information can be found on the webpage senorge.no. This site uses information from the weather stations and interpolate values from the stations for gridded maps.

Detailed weather forecast can be found online at www.yr.no or www.storm.no. Yr.no is also in English, but the weather in text format is only given in Norwegian.