Avalanche forecast for Indre Fjordane Wednesday 2019-02-13

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  3. Avalanche forecast for Indre Fjordane Wednesday 2019-02-13

3
Considerable
Published:

Temperature rise may give some wet sluffs below approx. 1100 m a.s.l. Moderate gale from SW, and some snow, will form storm slabs at higher altitudes. Persistent week layers in the snow pack may in some cases lead to slab avalanches, caused by snow melt at low altitudes or loading at higher altitudes.

Avalanche problems and travel advice

New snow (slab avalanches)

Buried weak layer of new snow

Avoid terrain traps and steep slopes until the new snow has stabilized. The avalanche problem is generally widely distributed on any steep slope with deep new snow. Look for cohesive new snow that breaks apart or is poorly bonded to the old snow. Cracks around your skis are a typical dangersign.
Avalanche size:
3 - Large
Trigger/release:
Spontaneous release
Distribution:
Some steep slopes
Probability:
Possible

Wet snow (loose snow avalanches)

Loose snow

Avoid avalanche release and run out areas. Wet snow avalanches tend to release spontaneously. Timing is important. Stability decreases when the snow surface gets wet and soft.
Avalanche size:
2 - Medium
Trigger/release:
Spontaneous release
Distribution:
Many steep slopes
Probability:
Possible

Persistent weak layer (slab avalanches)

Buried weak layer of surface hoar

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.
Avalanche size:
3 - Large
Trigger/release:
Low additional load
Distribution:
Some steep slopes
Probability:
Possible

What are avalanche problems?

8 mm precipitation, up to 20 mm in the most exposed areas.
Moderate gale from west., change to strong breeze from the southwest.
-7 °C to -2 °C at 1400 m a.s.l.
Plus degrees up to 1100 m a.s.l. during the evening.
Cloudy.

For updated info, please visit yr.no
10 mm precipitation, up to 20 mm in the most exposed areas.
Fresh breeze from northwest., change to moderate gale from the southwest during the afternoon.
-9 °C to -2 °C at 1400 m a.s.l.
Plus degrees up to 700 m a.s.l. during the evening.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

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

i kommune: STRYN

Single avalanche

3 - Large

Dry slab avalanche

Click here for pictures and the full observation

Rapportert av: jan@nordfjordfhs (Unknown)

i kommune: JØLSTER

Weather

Rain

5.0 grader

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

i kommune: STRYN

Single avalanche

Not given

Not given

Rapportert av: brit-siv@obskorps (***)

i kommune: JØLSTER

Avalanche evaluation

3 Considerable

Avalanche problems

Buried weak layer of new snow

Avalanche problems

Buried weak layer of surface hoar

Avalanche problems

Loose snow

Snow profile (2012)

Brudd i rimlaget. 920 moh mot nordaust.

104368

Snow cover

80 cm snødybde

15 cm nysnø siste døgn

Weather

Snow

0.0 grader

Coloumn test

Poor

CTE4@41cmQ1

Avalanche activity

No avalanche activity Not given

Not given

Dangersign

Much water in the snow

Område: Fylket/varslingsregion. Beskrivelse: Skikkeleg vått i toppen av snødekket opp til 700 moh kl 18.30. Rullande snøballar i brattheng

Dangersign

Recent snowdrift

Område: Fylket/varslingsregion. Beskrivelse: Frå 700 moh

Click here for pictures and the full observation

Rapportert av: brit-siv@obskorps (***)

i kommune: JØLSTER

Coloumn test

Good

CTM15@12cmQ3

Rapportert av: brit-siv@obskorps (***)

i kommune: JØLSTER

Weather

Snow

-1.0 grader

Click here for pictures and the full observation

Rapportert av: erlend@nordfjordfhs (Unknown)

i kommune: STRYN

Avalanche evaluation

3 Considerable

Avalanche problems

Buried weak layer of new snow

Avalanche problems

Buried weak layer of faceted snow beneath a crust

Snow cover

120 cm snødybde

30 cm nysnø siste døgn

Weather

Snow

Dangersign

Large snowfall

Område: For kommunen. Beskrivelse: Ellers ingen faretegn observert

Rapportert av: OleNy@nordfjordfhs (Unknown)

i kommune: STRYN

Snow cover

170 cm snødybde

50 cm nysnø siste døgn

Weather

Snow

-1.0 grader

Dangersign

Large snowfall

Område: I dalen/fjorden. Beskrivelse: 50 CM mellomtung pudder

Rapportert av: LarsO@nordfjordfhs (****)

i kommune: GLOPPEN

Avalanche evaluation

3 Considerable

Avalanche problems

Buried weak layer of new snow

Avalanche problems

Loose snow

Snow cover

10 cm nysnø siste døgn

Weather

Snow

-1.0 grader

Avalanche activity

No avalanche activity Not given

Not given

Dangersign

Recent snowdrift

Område: Generelt på fjellet. Beskrivelse: Over ca 600moh.

Rapportert av: drift@svv (**)

i kommune: EID

Avalanche evaluation

3 Considerable

Dangersign

Recent snowdrift

Dangersign

Quick temperature change

Dangersign

Much water in the snow

regn på snø

See all observations - RegObs

Avalanche problems

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.