Avalanche forecast for Heiane Wednesday 2021-01-13

Highest danger level per day:
3
Considerable
Published:

Conditions are challenging. Be sure you have enough knowledge and experience before travelling in the mountains. Be extra careful in lee areas with wind deposited snow. There are persistent weak layers in the snowpack. Keep safe distance to all avalanche terrain.

Illustrasjon av ferdselsråd Avoid terrain steeper than 30 degrees and runout zones. Remote triggering is likely.
Illustrasjon av ferdselsråd Avoid terrain traps.

Persistent weak layer (slab avalanches)

Buried weak layer of faceted snow near surface

Read more about the avalanche problem
3 - Large
Low additional load
Specific steep slopes
Possible

What are avalanche problems?

Observations the last 3 days (map placed)

1 mm precipitation.
Strong breeze from northwest.
-16 °C to -8 °C at 1100 m a.s.l.
Plus degrees up to 200 m a.s.l. during the afternoon.
Partly cloudy.

For updated info, please visit yr.no
1 mm precipitation.
Strong breeze from northeast., change to breeze from the north during the afternoon.
-15 °C to -6 °C at 1100 m a.s.l.
Plus degrees up to 200 m a.s.l. wednesday night.
Clear skies.

For updated info, please visit yr.no

Observations the last 3 days

Heiane / Sirdal

Snow

13.01.2021 kl. 21:36

1181 masl

Salvesen@obskorps (***)

Image Of Avalanche Observation
Image 1 of 1 Of:  Avalanche Observation Copyright:  Salvesen@obskorps

Avalanche Observation

13. Jan 14:37 (+01:00) Human triggered Videreformidlet via jungeltelegrafen. Usikker posisjon og tidspunkt på dagen.

ObsID: 248996

Heiane / GJESDAL

Snow

13.01.2021 kl. 18:13

659 masl

Inigo (Unknown)

Tests

ECTP6@30cmQ2 Medium

ObsID: 248976

Heiane / BJERKREIM

Snow

13.01.2021 kl. 15:38

709 masl

Thomas Hetland (Unknown)

Image Of Avalanche Observation
Image 1 of 3 Of:  Avalanche Observation Copyright:  Thomas Hetland Comment:  Naturlig utløst skred. Sørvest vendt. Ser stort sett naturlig utløste skred samme plass hvert år
Image Of Snow Cover
Image 2 of 3 Of:  Snow Cover Copyright:  Thomas Hetland
Image Of Weather
Image 3 of 3 Of:  Weather Copyright:  Thomas Hetland

Weather

No precipitation -6 °C 14 m/s from NE ↙

Avalanche Observation

13. Jan 10:27 (+01:00) Dry slab avalanche 1 - Small Naturaly released Avalanche release at 702 masl and ended at 691 masl 10 cm high and 10 m wide fracture Close to ridge Lite skred

Incident

Snow Did not affect anything Backcountry skiing

Snow Cover

50 cm in total 10 cm new snow Elevation of new snow 0 masl. Snow line at 0 masl Wind slab (hard slab) Mye fokksnø har lagt seg rundt forbi på fjellet overalt. Mye vind og mye snø siden søndag

ObsID: 248989

Heiane / HJELMELAND

Snow

13.01.2021 kl. 14:07

613 masl

Erik Macdonald Karlsen (Unknown)

Image Of Danger Sign
Image 1 of 3 Of:  Danger Sign Copyright:  Erik Macdonald Karlsen Comment:  Brudd på 9 tapp med hånd, svakt lag, antatt rimlaget etter kaldværet
Image Of Tests
Image 2 of 3 Of:  Tests Copyright:  Erik Macdonald Karlsen
Image Of Tests
Image 3 of 3 Of:  Tests Copyright:  Erik Macdonald Karlsen

Snow Cover

45 cm in total Moderate snow drift 20 cm new snow Elevation of new snow 0 masl. Snow line at 0 masl Much loose snow (10-30cm) Dry

Tests

ECTX Poor ECT10 brudd ca 20 cm ned i snødekket. Ingen bruddforplantning

Weather

No precipitation -8 °C 10 m/s from E ← Varierende vind

ObsID: 248972

Heiane / Sirdal

Snow

11.01.2021 kl. 13:35

797 masl

Martine-Sirdalskipatrol (Unknown)

Image Of Notes
Image 1 of 5 Of:  Notes Copyright:  Martine-Sirdalskipatrol
Image Of Tests
Image 2 of 5 Of:  Tests Copyright:  Martine-Sirdalskipatrol Comment:  Depth to ground: 80 cm Colum: 30 cm x 120 cm
Image Of Snow Profile
Image 3 of 5 Of:  Snow Profile Copyright:  Martine-Sirdalskipatrol
Image Of Snow Profile
Image 4 of 5 Of:  Snow Profile Copyright:  Martine-Sirdalskipatrol
Image Of Snow Profile
Image 5 of 5 Of:  Snow Profile Copyright: 

Snow Cover

Some snow drift 25 cm new snow Surface hoar on a soft surface Dry Penfoot: 25 cm Penski: 25 cm

Tests

ECTX Medium

Notes

The ect test at 30° showed to have minor top layer instabilites but no propergation. It is of note however skiing back down we triggerd a point release of the top 25 cm loose snow easily at about 40°.

Weather

No precipitation 0 °C 0 m/s 100% clouds 25 cm of snow o/n 6 m/s from West o/n

Snow Profile

25 cm F SH 1 mm, 5 cm 4F RG 0 mm, 4 cm P MF 2 mm, 42 cm 4F RG 1 mm, 4 cm P MF 2 mm -4 °C @ 0 cm, -5 °C @ 10 cm, -5 °C @ 20 cm 1 tests connected to snow profile

ObsID: 248600

Heiane / Sirdal

Snow

10.01.2021 kl. 15:13

695 masl

Osletten (Unknown)

Image Of Tests
Image 1 of 6 Of:  Tests Copyright:  Osletten Comment:  Her er første bruddet som kom når jeg skulle bruke neven på test
Image Of Tests
Image 2 of 6 Of:  Tests Copyright:  Osletten Comment:  Som man ser på bildet er det ca. 7 forskjellige lag. Men det som har godt igjen hele helgen er det svake laget oppå skarelaget i bunn.
Image Of Tests
Image 3 of 6 Of:  Tests Copyright:  Osletten Comment:  Bruddet er ujevn derfor vurdere jeg det til q2 -q3
Image Of Tests
Image 4 of 6 Of:  Tests Copyright:  Osletten Comment:  Her ser man skare/tettpakket krystallisert snø laget som er under der man får brudd
Image Of Tests
Image 5 of 6 Of:  Tests Copyright:  Osletten Comment:  Vi målte 35cm ny snø fra igår kl. 21:00 til idag kl.15
Image Of Snow Profile
Image 6 of 6 Of:  Snow Profile Copyright: 

Snow Cover

63 cm in total 35 cm new snow Elevation of new snow 10 masl Very much loose snow (>30cm) Dry

Tests

ECTPV@65cmQ2 Poor Fikk brudd da jeg skulle stikke neven inn på øverste laget. Altså svært lite berøring som skal til for at en skal få brudd.

Weather

Snow -2 °C 10 m/s from SW ↗ 80% clouds Har snødd variert i hele natt, men Støre snøfnugg som er tørre.

Snow Profile

32 cm F

ObsID: 248500

Heiane / Sirdal

Snow

10.01.2021 kl. 15:12

758 masl

kjetilvj (Unknown)

Image Of Danger Sign
Image 1 of 1 Of:  Danger Sign Copyright:  kjetilvj Comment:  Laget med rimkrystaller er dekket av 10-15 cm tørr nysnø

Danger Sign

Other danger sign (specify) Område: På dette stedet. Beskrivelse: Nedsnødd lag med rimkrystaller

ObsID: 248488

Heiane / HJELMELAND

Snow

10.01.2021 kl. 12:42

20 masl

Christer@rkh-skredgruppe (Unknown)

Image Of Snow Cover
Image 1 of 1 Of:  Snow Cover Copyright:  Christer@rkh-skredgruppe Comment:  Kommet ila natten

Weather

Snow

Snow Cover

10 cm in total Moist

ObsID: 248409

Heiane / Sirdal

Snow

10.01.2021 kl. 12:07

889 masl

KimS@obskorps (***)

Image Of Snow Cover
Image 1 of 6 Of:  Snow Cover Copyright:  KimS@obskorps Comment:  Vindpåvirkning.
Image Of Snow Cover
Image 2 of 6 Of:  Snow Cover Copyright:  KimS@obskorps Comment:  Sørvendt terreng 900m
Image Of Snow Cover
Image 3 of 6 Of:  Snow Cover Copyright:  KimS@obskorps Comment:  Østvendt 700 m
Image Of Snow Cover
Image 4 of 6 Of:  Snow Cover Copyright:  KimS@obskorps Comment:  SØ vendt. Tatt fra 670 m
Image Of Snow Cover
Image 5 of 6 Of:  Snow Cover Copyright:  KimS@obskorps Comment:  Nordvendt tatt fra 620 m
Image Of Snow Profile
Image 6 of 6 Of:  Snow Profile Copyright: 

Avalanche Activity

10. Jan. During the day (+01:00) No avalanche activity

Avalanche Danger Assessment

2 Moderate De fasetterte lagene mot overflaten virker til å ha blitt brutt ned av sludd. Skredproblem nå virker å være dårlig binding i fokksnø. Det har kommet mindre snø enn meldt og er generelt så lite snø at terrenget viser gjennom og snøflaten er gjennomgående brutt. Ytterligere snø som meldt vil kunne forsterke ustabilitet i fokksnøen. Forecast too high Varslet grad var med utgangspunkt i snøfall på fasetterte krystaller i overflaten. I Hunnedalen kom nedbøren som sludd og tok vekk krystallene.

Avalanche Problems

Dry slab avalanche Poor bonding between layers in wind deposited snow Within half a meter The weak layer collapses easily and clean (easy propagation). The collapsing weak layer is thin < 3 cm. Difficult to trigger 2 - Medium N, NE, E Snøfallet i går kveld/ natt startet som sludd første par timene og har nok brutt ned overflaterim og øverste kantkornlag. Enkeltkrystaller finnes, men har ikke funnet lag med stort innhold av fasettert korn. Sjekket for dette 5 steder. Turen i dag har gått over småheng i alle eksponeringer utenom V uten faretegn.

Snow Cover

60 cm in total No snowdrift 7 cm new snow Elevation of new snow 10 masl. Snow line at 300 masl. Layered snow begins at 400 masl Storm slab (soft slab) Dry Vekslende mellom ubundet, harde og myke flak. Ingen større, homogene flater.

Tests

LBT@60cmQ2 Løsnet lett. 2-3 lette slag

Weather

Snow -4 °C 5 m/s from NW ↘ 70% clouds Lite snøfall hittil i dag, maks 20 mm

Danger Sign

Recent cracks Område: I dalen/fjorden. Beskrivelse: Sprekker rundt skiene, men ikke skytende.

Snow Profile

0.5 cm 4F DF 1 mm D, 3 cm F DF/FC 1 mm/2 mm D Hovedsakelig mekanisk påvirket nysnø med få innslag av store fasetterte krystaller., 5 cm 1F RG 1 mm D, 2 cm P MFcr 1 mm D, 47 cm 1F RG 0 mm D, 0.5 cm P MFcr 0 mm D, 32 cm P RG 0 mm D, 37 cm P MF 1 mm D

ObsID: 248428

Heiane / BJERKREIM

Snow

10.01.2021 kl. 11:55

896 masl

Thomas Hetland (Unknown)

Image Of Danger Sign
Image 1 of 2 Of:  Danger Sign Copyright:  Thomas Hetland Comment:  Sukkersnø...kantkorn? Som kommer lett ut 25cm under snøoverflaten
Image Of Weather
Image 2 of 2 Of:  Weather Copyright:  Thomas Hetland

Weather

Snow -2 °C 5 m/s from W → 100% clouds Tåke og dårlig sikt på fjellet.

Snow Cover

50 cm in total 10 cm new snow Snow line at 400 masl

Danger Sign

Recent snowdrift

ObsID: 248415

Heiane / Sirdal

Snow

10.01.2021 kl. 11:30

684 masl

Rachael-sirdalskipatrol (Unknown)

Notes

Last 24hr snow fall came in with no wind so uniform density over all aspects. I found no slab quality on NE aspect at 650m 25 degrees. With only real hazard of sluffing on slopes 35degrees and above.

Weather

No precipitation -5 °C 0 m/s 75% clouds Had been snowing S-1 up until 10 minutes before weather obvs were taken. 24 hr snow fall accumulation 10cm, fell with no wind.

Snow Cover

No snowdrift 10 cm new snow Some loose snow (1-10cm) Dry New snow - PPsd 2mm fell onto hard crust below.

ObsID: 248399

Heiane / Sirdal

Snow

10.01.2021 kl. 09:20

570 masl

Salvesen@obskorps (***)

Image Of Snow Cover
Image 1 of 2 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Knusktørt
Image Of Weather
Image 2 of 2 Of:  Weather Copyright:  Salvesen@obskorps

Weather

Snow -4 °C 1 m/s from W → 80% clouds Lette snøbyger på norgenkvisten

Snow Cover

8 cm new snow Some loose snow (1-10cm) Dry

ObsID: 248343

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.