Avalanche forecast for Indre Troms Thursday 2021-01-21

Highest danger level per day:
2
Moderate
Published:

Avoid avalanche terrain loaded with snow since last thursday. Wind slabs are overlying a persistent weak layer.

Illustrasjon av ferdselsråd Avoid terrain steeper than 30 degrees and runout zones where the avalanche problem is present. Remote triggering is possible.
Illustrasjon av ferdselsråd NB: Identifying the avalanche problem is very difficult.
Illustrasjon av ferdselsråd Avoid terrain traps.

Persistent weak layer (slab avalanches)

Buried weak layer of faceted snow beneath a crust

Read more about the avalanche problem
2 - Medium
Low additional load
Specific steep slopes
Possible

Wind drifted snow (slab avalanches)

Poor bonding between layers in wind deposited snow

Read more about the avalanche problem
2 - Medium
Low additional load
Isolated steep slopes
Possible

What are avalanche problems?

Observations the last 3 days (map placed)

0 mm precipitation.
Moderate gale from southeast.
-20 °C to -14 °C at 1100 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no
0 mm precipitation.
Gale from southeast.
-22 °C to -16 °C at 1100 m a.s.l.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Indre Troms / Balsfjord

Snow

18.01.2021 kl. 18:59

512 masl

Aadne@ObsKorps (****)

Image Of Snow Profile
Image 1 of 1 Of:  Snow Profile Copyright: 

Weather

Snow -5 °C 0 m/s 90% clouds

Avalanche Danger Assessment

2 Moderate Mulighet for å løse ut små skred ved liten tilleggsbelastning der det har lagt seg flak av bundet vindtransportert snø. Skredproblemer knytter seg til nedføyket løssnø, men også vedvarebde svakt lag i forbindelse med gamle islag høyt i snødekket. Det er mulig å fjernutløse skred fra slakt terreng. Noe minkede om det ikke kommer mere snø Forecast correct

Snow Cover

80 cm in total No snowdrift 2 cm new snow Dry

Avalanche Problems

Dry slab avalanche Buried weak layer of new snow Within half a meter The collapsing weak layer is thin < 3 cm. The overlying slab is soft. Easy to trigger 1 - Small NE, E, SE, S above 400 masl

Dry slab avalanche Buried weak layer of faceted snow beneath a crust Within a meter The collapsing weak layer is thin < 3 cm. The overlying slab is soft. Easy to trigger 2 - Medium NE, E, SE, S above 400 masl

Danger Sign

No signs observed

Snow Profile

0.5 cm P MFcr D Tynt skarelag, 1.5 cm F DF, 6 cm P RG, 1 cm I/P+ IFil SKARELAG MED TYNN ISKJERNE, 1 cm F FC 1 mm Hele laget, 50 cm K RG

ObsID: 250772

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.

For slope angle maps, download the app Varsom Regobs on App Store | Google Play or see our slope angle map at senorge.no ("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.