Avalanche forecast for Sunnmøre Thursday 2018-01-18

2
Moderate
Published:

Be aware of areas with wind slabs. A persistent weak layer of facets may be triggered, especially where the snow cover is thin.

Wind slab avalanches

Poor bonding between layers in wind deposited snow

Be careful and keep distance to each other in steep (above 30 degrees) terrain with fresh wind deposited snow, especially convex terrain. An avalanche is easier to trigger where wind slabs are thin or soft. Look for areas where the wind recently has deposited snow, typically behind ridges, ribs and in gullies. Remember that local wind effects will cause variation in where the wind slabs occur.
Slab avalanche
2 - Small
High additional load
Some steep slopes
Possible

Persistent slab avalanches

Buried weak layer of surface hoar

Keep distance to each other and to release areas. NB, remote triggering is possible. Make very conservative route choices, especially in unknown terrain, after snowfall and if temperatures rise. Identifying areas where the weak layer is present might be difficult and requires experience. Danger signs are whoumpf-sounds, cracking and recent avalanches. However, absence of signs does not mean it is safe.
Slab avalanche
3 - Medium
High additional load
Isolated steep slopes
Possible

What are avalanche problems?

Rainfall
0 mm
Wind
Fresh breeze from southeast
Temperature
-13 °C til -5 °C på 1400 moh
Freezing level
Up to 200 masl to wednesday night
Cloud cover
Partly cloudy

For updated info, please visit yr.no
Rainfall
0 mm
Wind
Fresh breeze from southeast
Temperature
-15 °C til -6 °C på 1400 moh
Freezing level
Up to 200 masl to thursday night
Cloud cover
Partly cloudy

For updated info, please visit yr.no

Observations in this region

Rapportert av: skreddeteksjon@wyssen-svv (A)

i kommune: NORDDAL

Avalanche activity

No avalanche activity Not givenNot given

Rapportert av: Gustav@NVE (***)

i kommune: SYKKYLVEN

Avalanche activity

No avalanche activity Not givenNot given

Avalanche evaluation

2 Moderate

Avalanche problems

Poor bonding between layers in wind deposited snow

Avalanche problems

Buried weak layer of faceted snow above a crust

Coloumn test

GoodECTP24@36cmQ3

Snow cover

90 cm snødybde0 cm nysnø siste døgn

Dangersign

No signs observedIngen fersk fokksnø. Fokksnøen som finnes ble dannet foregående dager og er svært hard. Ingen ny rim observert.

Weather

No precipitation-6.0 grader

Bilde fra regobs
Bilde fra regobs
Bilde fra regobs
Bilde fra regobs
Bilde fra regobs
Bilde fra regobs
Bilde fra regobs
Bilde fra regobs

Rapportert av: CatoLe (*)

i kommune: VOLDA

General text

Det ser ut til at det som følgje av siste dagars sterke vind har bygd seg opp skavlar mot nord, nordaust. Ver obs!

Snow cover

0 cm snødybde0 cm nysnø siste døgn

Dangersign

Recently made avalanchesOmråde: I denne fjellsiden. Beskrivelse: Tilsynelatende gått eit mindre flakskred i nordvendt side av Grøthornet. Tippar det har gått i kombinasjon med den sterke vinden og snøtransporten som var for nokre dagar sidan.

Weather

No precipitation-2.0 grader

Bilde fra regobs
Bilde fra regobs
Bilde fra regobs

Rapportert av: Gustav@NVE (***)

i kommune: SYKKYLVEN

Snow cover

95 cm snødybde0 cm nysnø siste døgn

Weather

No precipitation-3.0 grader

Bilde fra regobs
Bilde fra regobs

Rapportert av: skreddeteksjon@wyssen-svv (A)

i kommune: NORDDAL

Avalanche activity

No avalanche activity Not givenNot given

Rapportert av: drift@svv (**)

i kommune: SYKKYLVEN

Avalanche evaluation

2 Moderate

Dangersign

No signs observed

Rapportert av: knutinge@svv (*****)

i kommune: STRANDA

Avalanche evaluation

2 Moderate

Avalanche problems

Buried weak layer of surface hoar

Coloumn test

MediumECTP14@35cmQ1

Weather

Snow-3.5 grader

Bilde fra regobs

Rapportert av: drift@svv (**)

i kommune: SANDE

Avalanche evaluation

0 Not given

Dangersign

No signs observed

Rapportert av: skreddeteksjon@wyssen-svv (A)

i kommune: NORDDAL

Avalanche activity

No avalanche activity Not givenNot given

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.

Visit www.ut.no for topographic maps online. For slope angle maps, see NGI slope angel maps ("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.