Avalanche forecast for Nordenskiöld Land Thursday 2019-02-21

2
Moderate
Published:

Be careful in areas with windslabs. 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 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
Some steep slopes
Possible

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.
3 - Large
High additional load
Some steep slopes
Unlikely

What are avalanche problems?

2 mm precipitation.
Breeze from west., change to moderate gale from the west during the afternoon.
-18 °C to -6 °C at 700 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no
1 mm precipitation.
Fresh breeze from northwest., change to breeze from the southeast during the afternoon.
-24 °C to -17 °C at 700 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Rapportert av: HoltH@unis (***)

i kommune: SVALBARD

Snow cover

Click here for pictures and the full observation

Rapportert av: Martini@unis (****)

i kommune: SVALBARD

Coloumn test

Good

ECTP22@50cmQ3

Coloumn test

Good

ECTN21@20cmQ1

Snow cover

90 cm snødybde

1 cm nysnø siste døgn

Weather

Snow

-8.6 grader

Snow profile (2012)

Øvre løsneområde ved snømålerstn.

106172

Snow profile (2012)

106178

Snow profile (2012)

106179

Avalanche problems

Poor bonding between layers in wind deposited snow

Avalanche problems

Buried weak layer of faceted snow above a crust

Avalanche activity

No avalanche activity Not given

Not given

Dangersign

No signs observed

Click here for pictures and the full observation

Rapportert av: Kjetil@obskorps (****)

i kommune: SVALBARD

Coloumn test

Not given

ECTN5@5cmQ2

Snow cover

Weather

Snow

-11.0 grader

Avalanche problems

Buried weak layer of faceted snow above a crust

Avalanche problems

Poor bonding between layers in wind deposited snow

Avalanche evaluation

2 Moderate

Snow profile

Antall Lag: 5

Total dybde: 56,00 cm

Click here for pictures and the full observation

Rapportert av: HoltH@unis (***)

i kommune: SVALBARD

Snow cover

3 cm nysnø siste døgn

Weather

Not observed

-17.0 grader

Avalanche problems

Poor bonding between layers in wind deposited snow

Avalanche problems

Buried weak layer of faceted snow beneath a crust

Dangersign

Recently made cracks

Sprekker i fokksnøen og skavlene

Avalanche evaluation

2 Moderate

Dangersign

Recently made avalanches

Utløste flere små skred i fokksnøen under skavlene. Begrenset forplantning, men lett å løse ut 10-15 cm soft slabs i fokksnøen rett under skavlene.

Click here for pictures and the full observation

Rapportert av: Ella@ANG (Unknown)

i kommune: SVALBARD

Coloumn test

Medium

ECTP21@40cmQ3

Snow profile

Antall Lag: 10

Total dybde: 101,00 cm

Click here for pictures and the full observation

Rapportert av: Martini@unis (****)

i kommune: SVALBARD

Weather

No precipitation

-17.0 grader

Click here for pictures and the full observation

Rapportert av: Kjetil@obskorps (****)

i kommune: SVALBARD

Snow cover

Avalanche problems

Poor bonding between layers in wind deposited snow

Dangersign

Whumpf sound

På toppen av Lars Hierta og i sør-vendte sider fra Lars-Hierta og ned mot Fardalen får jeg markante drønn i snøen i de fokksnøflakene som ble dannet av Nordlig vind.

Avalanche evaluation

2 Moderate

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.