Avalanche forecast for Hardanger Sunday 2018-01-21

2
Moderate
Published:

Be careful in lee areas with wind deposited snow, typically behind ridges, ribs and in gullies. Faceted snow is observed between wind slab and crust. Take caution especially where the wind deposited slabs are thin or soft, a slab avalanche is easier to trigger here.

Wind 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.
Slab avalanche
2 - Small
Low additional load
Some steep slopes
Possible

Persistent slab avalanches

Buried weak layer of faceted snow above a crust

Keep distance to each other and to release areas. 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, cracking and recent avalanches. However, absence of signs does not mean it is safe.
Slab avalanche
3 - Medium
High additional load
Isolated steep slopes
Possible

What are avalanche problems?

Rainfall
2 mm
Wind
Fresh breeze from southeast
Temperature
-13 °C til -7 °C på 1400 moh
Freezing level
Up to 200 masl to saturday night
Cloud cover
Partly cloudy

For updated info, please visit yr.no
Rainfall
0 mm
Wind
Breeze from southeast, change to strong breeze from the southeast during the evening
Temperature
-18 °C til -8 °C på 1400 moh
Freezing level
Up to 100 masl to during the afternoon
Cloud cover
Partly cloudy

For updated info, please visit yr.no

Observations in this region

Rapportert av: Jon Oscar (Unknown)

i kommune: ODDA

Dangersign

Other dangersign (specify)Område: I denne fjellsiden. Beskrivelse: Vindtransportert fokksnø i skravler raser fra bergskrent uten menneskelig påvirkning. Fokksnø sprekker opp rundt ski på toppen av ryggen

Incident

Did not affect anything

Single avalanche

1 - Harmless (sluff)Dry loose-snow avalanche

Bilde fra regobs

Rapportert av: KiranuZe (Unknown)

i kommune: ODDA

Weather

Not observed0 grader

Bilde fra regobs
Bilde fra regobs

Rapportert av: Streken (Unknown)

i kommune: KVINNHERAD

Snow cover

90 cm snødybde30 cm nysnø siste døgn

Dangersign

No signs observedOmråde: I denne fjellsiden. Beskrivelse: Gjekk sommerruta opp på Ingeborg.

Weather

No precipitation0.0 grader

Avalanche problems

Loose snow

Coloumn test

GoodNot given2@30cmNot specified

Avalanche activity

No avalanche activity Not givenNot given

Bilde fra regobs
Bilde fra regobs
Bilde fra regobs

Rapportert av: Streken (Unknown)

i kommune: KVINNHERAD

Avalanche evaluation

2 Moderate

Dangersign

No signs observedIngen lyd i snøen. Vi såg inge ras i området .

Weather

Snow-2.0 grader

Rapportert av: ÅgeMidthun@obskorps (***)

i kommune: SAUDA

Avalanche evaluation

2 Moderate

Snow cover

120 cm snødybde5 cm nysnø siste døgn

Dangersign

No signs observedOmråde: I denne fjellsiden. Beskrivelse:

Weather

Snow-2.0 grader

Avalanche problems

Buried weak layer of faceted snow above a crust

Avalanche problems

Poor bonding between layers in wind deposited snow

Coloumn test

MediumECTP13@45cmQ2

Avalanche activity

No avalanche activity Not givenNot given

Bilde fra regobs
Bilde fra regobs
Bilde fra regobs
Bilde fra regobs
Bilde fra regobs

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.