Avalanche forecast for Nord-Troms Thursday 2019-02-14

3
Considerable
Published:

Be careful in areas with newly deposited wind slabs. Persistent weak layers can be present where the snow cover is thin. Wet avalanches can occur where the percipitation comes as rain.

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

Wet snow (slab avalanches)

Water pooling in/above snow layers

Avoid avalanche release and run out areas. Wet snow avalanches tend to release spontaneously. Stability decreases when the snow surface gets wet and soft. Timing is important.
2 - Medium
Spontaneous release
Some steep slopes
Possible

Persistent weak layer (slab avalanches)

Buried weak layer of faceted snow beneath 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.
2 - Medium
Low additional load
Some steep slopes
Possible

What are avalanche problems?

13 mm precipitation, up to 21 mm in the most exposed areas.
Moderate gale from south., change to gale from the west during the evening.
-11 °C to -3 °C at 1100 m a.s.l.
Plus degrees up to 500 m a.s.l. during the evening.
Cloudy.

For updated info, please visit yr.no
0 mm precipitation.
Strong breeze from southeast., change to fresh breeze from the south during the evening.
-13 °C to -6 °C at 1100 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Rapportert av: Ingrid@NVE (*****)

i kommune: STORFJORD

Single avalanche

Not given

Not given

Rapportert av: drift@svv (**)

i kommune: KVÆNANGEN

Avalanche evaluation

3 Considerable

Dangersign

Recent snowdrift

Rapportert av: drift@svv (**)

i kommune: KVÆNANGEN

Avalanche evaluation

2 Moderate

Dangersign

Recent snowdrift

Rapportert av: Ingrid@NVE (*****)

i kommune: KÅFJORD

Dangersign

Recent snowdrift

Område: For kommunen. Beskrivelse: Ser på webkamera at det er snøfokk, både på gamanjunni og nordnesfjellet. Vind frå sø, rundt 10m/s.

Click here for pictures and the full observation

Rapportert av: drift@svv (**)

i kommune: KÅFJORD

Weather

Snow

-2.0 grader

Rapportert av: drift@svv (**)

i kommune: KÅFJORD

Weather

Snow

0.0 grader

Dangersign

Recent snowdrift

Rapportert av: torben@obskorps (***)

i kommune: STORFJORD

Dangersign

Whumpf sound

Område: På dette stedet. Beskrivelse:

Rapportert av: torben@obskorps (***)

i kommune: STORFJORD

Avalanche problems

Buried weak layer of faceted snow beneath a crust

Avalanche problems

Buried weak layer of faceted snow near the ground

Snow cover

40 cm snødybde

Avalanche activity

No avalanche activity Not given

Not given

Dangersign

Whumpf sound

på dette platået. Tynt snødekke over svak kul form

Coloumn test

Poor

ECTPV@30cmQ1

Click here for pictures and the full observation

Rapportert av: drift@svv (**)

i kommune: KÅFJORD

Weather

Snow

0.0 grader

Dangersign

Recent snowdrift

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.