Avalanche forecast for Indre Troms Thursday 2019-03-14

2
Moderate
Published:

Wind slabs can still be unstable. Persistent weak layers exist, and can be effected by a skier. Avalanches are easiest to trigger under the treeline where overlaying snow are soft, and harder to trigger over the treeline, since the overlaying snow is hard. Be careful under the treeline and where the snow cover is thin.

Illustrasjon av ferdselsråd Keep distance to each other when traveling in avelanche terrain. 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 and cracking which means that you influence weak layers and should avoid avalanche terrain. However, absence of signs does not mean it is safe.
Illustrasjon av ferdselsråd 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.

Persistent weak layer (slab avalanches)

Buried weak layer of faceted snow above 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
Specific steep slopes
Possible

What are avalanche problems?

Observations the last 3 days (map placed)

0 mm precipitation.
Strong breeze from southeast.
-19 °C to -10 °C at 1100 m a.s.l.
Cloudy.

For updated info, please visit yr.no
0 mm precipitation.
Strong breeze from southeast., change to fresh breeze from the southeast during the evening.
-16 °C to -10 °C at 1100 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Indre Troms / BARDU

Snow

14.03.2019 kl. 21:30

362 masl

Gomsted (Unknown)

Image Of Danger Sign
Image 1 of 1 Of:  Danger Sign Copyright:  Gomsted

Snow Cover

Some snow drift Much loose snow (10-30cm) Dry

Weather

-2 °C 5 m/s from SE ↖ 50% clouds

Danger Sign

Recent snowdrift Område: I dalen/fjorden. Beskrivelse: Dagens vind har flyttet på snøen i større grad.

Recent cracks Område: På dette stedet. Beskrivelse: Liten fonn som slipper lett og glir godt ved tilleggsbelastning av snøscooter og person til fots.

ObsID: 186285

Indre Troms / MÅLSELV

Snow

14.03.2019 kl. 12:21

276 masl

ToreV@met (*****)

Image Of Avalanche Activity
Image 1 of 3 Of:  Avalanche Activity Copyright:  ToreV@met
Image Of Avalanche Activity
Image 2 of 3 Of:  Avalanche Activity Copyright:  ToreV@met
Image Of Tests
Image 3 of 3 Of:  Tests Copyright:  ToreV@met

Tests

ECTP12@30cmQ1 Poor Glatt brudd i mellom øverste skarelag og myk fokksnø. Små kantkorn i laget som går til brudd.

Avalanche Activity

12. Mar. During the day Dry slab avalanche Few (2-5). 2 - Medium. Easy to trigger Specific steep slopes. E. Between 500 masl and 200 masl Et par skiløperutløste skred gått for noen dager siden. Skred gått i små kantkorn over det øverste skarelaget.

ObsID: 186169

Indre Troms / MÅLSELV

Snow

14.03.2019 kl. 11:26

164 masl

jan arild@obskorps (*****)

Image Of Snow Profile
Image 1 of 1 Of:  Snow Profile Copyright:  jan arild@obskorps
ObsID: 186153

Indre Troms / MÅLSELV

Snow

13.03.2019 kl. 13:47

485 masl

Marius (***)

Image Of Danger Sign
Image 1 of 2 Of:  Danger Sign Copyright:  Marius
Image Of Danger Sign
Image 2 of 2 Of:  Danger Sign Copyright:  Marius

Weather

7 m/s from SE ↖

Danger Sign

Recent cracks Område: På dette stedet. Beskrivelse: I nordøst heng sprakk snøen opp rundt scooter i

ObsID: 186031

Indre Troms / MÅLSELV

Snow

13.03.2019 kl. 11:39

857 masl

Marius (***)

Snow Cover

Some snow drift Crust

Tests

CTN Good Etter alle slag så fikk jeg det til å løsne med å bruke et hardt slag. Det løsnet i bunnen, masse sukkersnø

Weather

No precipitation -8 °C from SE ↖ 50% clouds

ObsID: 186029

Indre Troms / BARDU

Snow

12.03.2019 kl. 16:03

1044 masl

Alexander@Forsvaret (***)

Image Of Avalanche Activity
Image 1 of 1 Of:  Avalanche Activity Copyright:  Alexander@Forsvaret

Avalanche Activity

12. Mar. 18-24 Dry slab avalanche One (1). 2 - Medium. Spontaneous release Isolated steep slopes. SE, S, SW. Above 800 masl Kantkorn over skarelag fra forrige helg

ObsID: 185844

Indre Troms / BARDU

Snow

12.03.2019 kl. 13:02

566 masl

Morten@forsvaret (***)

Image Of Snow Profile
Image 1 of 3 Of:  Snow Profile Copyright:  Morten@forsvaret Comment:  Merk helningsgrad på 48°
Image Of Notes
Image 2 of 3 Of:  Notes Copyright:  Morten@forsvaret Comment:  ECTP6 @26 Q1
Image Of Notes
Image 3 of 3 Of:  Notes Copyright:  Morten@forsvaret Comment:  Homogent snødekke under skarelagene

Notes

Tests

ECTP6@26cmQ1

CTM13@26cmQ1

Weather

No precipitation 2% clouds

Danger Sign

No signs observed

ObsID: 185804

Indre Troms / BARDU

Snow

12.03.2019 kl. 12:58

732 masl

Alexander@Forsvaret (***)

Image Of Avalanche Observation
Image 1 of 2 Of:  Avalanche Observation Copyright:  Alexander@Forsvaret
Image Of Avalanche Observation
Image 2 of 2 Of:  Avalanche Observation Copyright:  Alexander@Forsvaret

Avalanche Observation

10. Mar 12:59 Dry slab avalanche 2 - Medium Naturaly released S-facing Buried weak layer of faceted snow above a crust 120 cm high and 40 m wide fracture Close to ridge Aktivt kantkornlag over skare fra forrige helg. Bruddhøyden varierte fra 120 cm til 15 cm

ObsID: 185842

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.