Avalanche forecast for Trollheimen Saturday 2019-03-16

2
Moderate
Published:

There is a persistent weak layer buried in the snow cover that may be triggered by a skier or snowmobile. Remote triggering possible on hotspots or on convex terrain where the snow cover is thin. Wind slabs in the alpine may also form avalanches, especially when the wind picks up in the afternoon.

Persistent weak layer (slab avalanches)

Buried weak layer of faceted snow near surface

Keep distance to each other when traveling in avelanche terrain. 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 and cracking which means that you influence weak layers and should avoid avalanche terrain. However, absence of signs does not mean it is safe.
2 - Medium
High additional load
Specific steep slopes
Possible

Wind drifted snow (slab avalanches)

Buried weak layer of new 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.
2 - Medium
Low additional load
Isolated steep slopes
Possible

What are avalanche problems?

Observations the last 3 days (map placed)

0 mm precipitation.
Breeze from southeast., change to fresh breeze from the southeast during the afternoon.
-15 °C to -7 °C at 1400 m a.s.l.
Plus degrees up to 100 m a.s.l. during the evening.
Clear skies.

For updated info, please visit yr.no
0 mm precipitation.
Calm/light breeze from south.
-12 °C to -6 °C at 1400 m a.s.l.
Plus degrees up to 100 m a.s.l. during the evening.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Trollheimen / Okla

Snow

16.03.2019 kl. 11:58

1061 masl

Morten N (Unknown)

Image Of Danger Sign
Image 1 of 1 Of:  Danger Sign Copyright:  Comment:  Rimkrystaller på overflaten.

Danger Sign

Surface hoar Observerte store områder med rimkrystaller på overflaten på vei opp til Okla.

ObsID: 186613

Trollheimen / Oppdal

Snow

16.03.2019 kl. 11:26

946 masl

obr (Unknown)

Image Of Snow Cover
Image 1 of 1 Of:  Snow Cover Copyright:  obr Comment:  Storebekkhøa

Snow Cover

Vekslende lett papp og 15cm pudder i skogen

Danger Sign

No signs observed

ObsID: 186517

Trollheimen / SUNNDAL

Snow

14.03.2019 kl. 12:44

1291 masl

Tord1 (Unknown)

Image Of Avalanche Observation
Image 1 of 1 Of:  Avalanche Observation Copyright:  Tord1

Avalanche Observation

14. Mar 07:29 Dry loose-snow avalanche Naturaly released SE-facing Steep slope Mange små løssnøskred gått i dag

ObsID: 186242

Trollheimen / SUNNDAL

Snow

14.03.2019 kl. 12:37

1350 masl

Tord1 (Unknown)

Image Of Avalanche Observation
Image 1 of 1 Of:  Avalanche Observation Copyright:  Tord1

Avalanche Observation

12. Mar 12:37 Dry slab avalanche 1 - Small Naturaly released SE-facing 15 m wide fracture Lee side

ObsID: 186241

Trollheimen / NESSET

Snow

14.03.2019 kl. 11:52

1200 masl

knutinge@svv (*****)

Image Of Weather
Image 1 of 2 Of:  Weather Copyright:  knutinge@svv Comment:  Fløtatind
Image Of Avalanche Activity
Image 2 of 2 Of:  Avalanche Activity Copyright:  knutinge@svv

Avalanche Activity

14. Mar. During the day No avalanche activity Overraskende lite å se , bare noen små rutsjer i sola i nysnøen

Weather

No precipitation 0 m/s 5% clouds Vindstille her på 1200. 1 cm nysnø i natt. Blyant hard overflate men små lommer av 4f innimellom.

ObsID: 186164

Trollheimen / Oppdal

Snow

14.03.2019 kl. 09:08

612 masl

EspenR (Unknown)

Image Of Danger Sign
Image 1 of 1 Of:  Danger Sign Copyright:  EspenR

Danger Sign

Recent avalanches Område: I denne fjellsiden. Beskrivelse: Stort flakskred, tilsynelatende ferskt.

Weather

0 m/s Snø og vind i går.

ObsID: 186109

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.