Avalanche forecast for Lyngen Monday 2019-02-18

3
Considerable
Published:

Avoid avalanche terrain with newly deposited wind slabs. Persistent weak layers can be effected, particularly where the snow cover is thin.

Wind drifted snow (slab avalanches)

Poor bonding between layers in wind deposited 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.
2 - Medium
Low additional load
Many steep slopes
Possible

Persistent weak layer (slab avalanches)

Buried weak layer of faceted snow above a crust

Avoid skiing in avalanche terrain (steep terrain more than 30 degrees and in runout zones). NB, remote triggering is likely. 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.
3 - Large
Low additional load
Some steep slopes
Possible

What are avalanche problems?

6 mm precipitation.
Fresh breeze from south.
-14 °C to -6 °C at 1100 m a.s.l.
Cloudy.

For updated info, please visit yr.no
4 mm precipitation.
Strong breeze from north., change to breeze from the southeast sunday night.
-15 °C to -5 °C at 1100 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Rapportert av: LyngenDavid@ObsKorps (****)

i kommune: LYNGEN

Weather

No precipitation

-5.0 grader

Snow cover

30 cm snødybde

2 cm nysnø siste døgn

Avalanche problems

Poor bonding between crust and overlying snow

Avalanche problems

Buried weak layer of new snow

Avalanche problems

Buried weak layer of faceted snow beneath a crust

Coloumn test

Medium

ECTP11@15cmQ2

Dangersign

Recent snowdrift

Område: Fylket/varslingsregion. Beskrivelse: Observert fokksnø fra toppene, yttersia er helt sundblåst.

Avalanche evaluation

3 Considerable

Snow profile

Antall Lag: 4

Total dybde: 30,00 cm

Click here for pictures and the full observation

Rapportert av: Karin (Unknown)

i kommune: TROMSØ

Weather

No precipitation

-4.0 grader

Snow cover

10 cm nysnø siste døgn

Avalanche problems

Poor bonding between layers in wind deposited snow

Dangersign

Recent snowdrift

Område: Generelt på fjellet. Beskrivelse: Over trægrensa

Avalanche evaluation

3 Considerable

Click here for pictures and the full observation

Rapportert av: LarsBukkehave (Unknown)

i kommune: TROMSØ

Dangersign

Recently made avalanches

Område: På dette stedet. Beskrivelse: Q1 brud i ny sneen fra i nat. Der vindpakket og bundet 10cm nede.

Click here for pictures and the full observation

Rapportert av: Hallvard@SVV (****)

i kommune: TROMSØ

Avalanche activity

Few (2-5) Not given

Dry slab avalanche

Snow cover

Single avalanche

2 - Medium

Dry slab avalanche

Click here for pictures and the full observation

Rapportert av: drift@svv (**)

i kommune: TROMSØ

Avalanche activity

Not given Not given

Not given

Rapportert av: FrodeHansen@ObsKorps (****)

i kommune: LYNGEN

Avalanche activity

One (1) 3 - Large

Dry slab avalanche

Weather

No precipitation

-2.0 grader

Rapportert av: Patrik@ObsKorps (****)

i kommune: LYNGEN

Dangersign

Whumpf sound

Rapportert av: drift@svv (**)

i kommune: TROMSØ

Avalanche activity

Not given 1 - Small

Dry slab avalanche

Dangersign

Recently made avalanches

Dangersign

Recent snowdrift

Dangersign

Much water in the snow

regn på snø

Avalanche evaluation

3 Considerable

Rapportert av: LyngenDavid@ObsKorps (****)

i kommune: LYNGEN

Avalanche activity

No avalanche activity Not given

Not given

Weather

Rain

3.0 grader

Snow cover

50 cm snødybde

2 cm nysnø siste døgn

Avalanche problems

Buried weak layer of new snow

Avalanche problems

Buried weak layer of faceted snow above a crust

Avalanche problems

Water pooling in/above snow layers

Coloumn test

Not given

CTN@0cmNot specified

Dangersign

Much water in the snow

Område: Fylket/varslingsregion. Beskrivelse: Opp til minst 500moh

Dangersign

Recent snowdrift

Område: Fylket/varslingsregion. Beskrivelse: Over tregrensa.

Avalanche evaluation

3 Considerable

Snow profile

Antall Lag: 4

Total dybde: 57,00 cm

Click here for pictures and the full observation

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

i kommune: TROMSØ

Avalanche activity

One (1) Not given

Not 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.