Avalanche forecast for Nordenskiöld Land Wednesday 2018-12-19

3
Considerable
Published:

Be careful in areas with fresh windloaded snow. Avoid lee areas where a persistent weak layer can be hidden in the snow pack. Avalanches are triggered easiest where the snow pack is thin, typically close to ridges and on convex formations.

Wind drifted snow - slab avalanches

Buried weak layer of new snow

Avoid steep (more than 30 degrees) areas 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.
3 - Large
Low additional load
Some steep slopes
Possible

Persistent weak layer - slab avalanches

Buried weak layer of faceted snow above a crust

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
Possible

What are avalanche problems?

10 mm precipitation.
Moderate gale from west., change to fresh breeze from the west during the evening.
-5 °C to -2 °C at 700 m a.s.l.
Plus degrees up to 400 m a.s.l. during renoon.
Cloudy.

For updated info, please visit yr.no
4 mm precipitation, up to 10 mm in the most exposed areas.
Breeze from southwest., change to moderate gale from the southwest during the afternoon.
-16 °C to -3 °C at 700 m a.s.l.
Plus degrees up to 200 m a.s.l. during the evening.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

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

i kommune: SVALBARD

Avalanche activity

Several (6-10) 2 - Medium

Loose dry avalanche

Click here for pictures and the full observation

Rapportert av: DagF@UNIS (***)

i kommune: SVALBARD

Weather

Rain

4.0 grader

Click here for pictures and the full observation

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

i kommune: SVALBARD

Weather

Not observed

Click here for pictures and the full observation

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

i kommune: SVALBARD

Weather

Snow

-10.0 grader

Avalanche problems

Poor bonding between layers in wind deposited snow

Avalanche problems

Buried weak layer of faceted snow above a crust

Avalanche evaluation

2 Moderate

Snow cover

Dangersign

No signs observed

Coloumn test

Not given

ECTN2@11cmNot specified

Coloumn test

Good

ECTP17@70cmQ2

Snow profile

Antall Lag: 8

Total dybde: 86,00 cm

Click here for pictures and the full observation

Rapportert av: elke@unis (***)

i kommune: SVALBARD

Weather

Snow

-7.1 grader

Avalanche problems

Buried weak layer of faceted snow beneath a crust

Avalanche problems

Buried weak layer of new snow

Avalanche evaluation

2 Moderate

Snow cover

51 cm snødybde

Avalanche activity

No avalanche activity Not given

Not given

Coloumn test

Not given

ECTN1@1cmQ3

Click here for pictures and the full observation

Rapportert av: DagF@UNIS (***)

i kommune: SVALBARD

Notes

Naturlig utløst str. 3 skred som sannsynligvis har gått under mildværet på lørdag (litt nysnø på skredmassene). Østvendt side. Bruddkant anslått til 500m. Bruddkant ser ut til å gå oppunder skavl mellom Teltberget og Nordenskioldfjellet, men litt vanskelig å si pga mørke. Skredet har gått 3-400m ut på flata (breen). Bredde skredtunge på flata anslått til rundt 200m.

Click here for pictures and the full observation

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

i kommune: SVALBARD

Snow cover

Dangersign

Whumpf sound

Etpar gode drønn oppå platået. Usikker på hvilket lag som kollapser

Click here for pictures and the full observation

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.