Avalanche forecast for Finnmarkskysten Wednesday 2021-12-08

Highest danger level per day:
2
Moderate
Published:

Locally unstable conditions. Be aware that there can be pockets with persistent weak layers and unstable wind slabs. Generally little snow and a lot of rocks, be careful in and around terrain traps.

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 near surface

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

Wind drifted snow (slab avalanches)

Buried weak layer of new snow

Read more about the avalanche problem
1 - Small
Low additional load
Isolated steep slopes
Possible

What are avalanche problems?

Observations the last 3 days (map placed)

Little to no precipitation.
Strong breeze from south.
-24 °C to -13 °C at 700 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no
No precipitation.
Strong breeze from south.
-26 °C to -14 °C at 700 m a.s.l.
Clear skies.

For updated info, please visit yr.no

Observations the last 3 days

Finnmarkskysten / Porsanger

Snow

07.12.2021 kl. 22:01

45 masl

Johan@obskorps (***)

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

Snow Profile

0.3 cm 4F SH 2 mm/3 mm, 11 cm 4F FC 2 mm/3 mm, 2 cm I MFcr, 3 cm 4F DH 3 mm, 1 cm I MFcr, 9 cm 4F/I FC/MFcr 3 mm/4 mm -15 °C @ 0 cm, -9 °C @ 10 cm, -5 °C @ 20 cm

ObsID: 279594

Finnmarkskysten / Porsanger

Snow

07.12.2021 kl. 19:31

101 masl

Johan@obskorps (***)

Image Of Tests
Image 1 of 4 Of:  Tests Copyright:  Johan@obskorps Comment:  Ect
Image Of Tests
Image 2 of 4 Of:  Tests Copyright:  Johan@obskorps Comment:  Lbt
Image Of Snow Profile
Image 3 of 4 Of:  Snow Profile Copyright:  Johan@obskorps Comment:  Kk under skare. 3 mm grid.
Image Of Snow Profile
Image 4 of 4 Of:  Snow Profile Copyright:  Johan@obskorps Comment:  Kk over skare. 3mm grid.

Danger Sign

No signs observed Gikk I mørke

Weather

No precipitation -15 °C 5 m/s from SW ↗ Klart og kaldt. Siste uken har det vært stabilt kaldt og klart vær.

Snow Cover

50 cm in total No snowdrift 0 cm new snow Elevation of new snow 0 masl. Snow line at 0 masl Wind slab (hard slab) Dry Fordeling av snø I terrenget har ikke endret seg mye siste uke. Det var en dag med snøbyger i forrige uke som ga et påfyll på 5-10 cm. Avblåst over topper. Ubundet snø under tregrense over skarelag. Ok skiføre. Lite snø generelt.

Avalanche Danger Assessment

1 Low Det er lite snø I terrenget. Det finnes et ca 2 uker gammelt fokksnøflak i nordlig himmelretninger som nå har stabilisert seg, men dette ligger over et vedvarende svakt lag. Test indikerer at propageringsevne i det svake laget er dårlig, samtidig som overliggende lag er svært hardt. Situasjonen vil vedvare. Temperaturgradient og værvarsel resten av uka tilsier mer oppbyggende omvandling og danning av overflaterim. Forecast too high

Tests

ECTPV@14cmQ3 Medium

LBT@14cmQ1 Ved isolering

Avalanche Activity

7. Dec. During the day No avalanche activity Gikk I mørke

Avalanche Problems

Dry slab avalanche Buried weak layer of faceted snow above a crust Within half a meter A big and identifiable crystal in the weak layer. Difficult to trigger 2 - Medium N, NE, W, NW

Snow Profile

14 cm K RG, 8 cm 4F FCsf 1 mm/2 mm, 8 cm K MFcr, 3 cm 4F FCso 2 mm/3 mm, 20 cm I MFcr -17.5 °C @ 0 cm, -13 °C @ 10 cm, -6 °C @ 20 cm, -4 °C @ 30 cm, -2.2 °C @ 40 cm 1 tests connected to snow profile

ObsID: 279592

Finnmarkskysten / Porsanger

Snow

05.12.2021 kl. 21:47

50 masl

GG (***)

Image Of Danger Sign
Image 1 of 3 Of:  Danger Sign Copyright:  GG
Image Of Avalanche Observation
Image 2 of 3 Of:  Avalanche Observation Copyright:  GG
Image Of Snow Profile
Image 3 of 3 Of:  Snow Profile Copyright: 

Incident

Ingen skade Snow Did not affect anything Nordic skiing

Avalanche Observation

5. Dec 20:16 Dry slab avalanche 1 - Small Human triggered N-facing Avalanche release at 55 masl and ended at 49 masl Buried weak layer of surface hoar 40 cm high and 60 m wide fracture Lee side Løste ut når skiløper gikk over/mot skavelkant. Lengden på skredbanen er 5-30m. Den stopper i skog. Det er observert skred/utglidning her tidligere år

Danger Sign

Recent avalanches Område: På dette stedet. Beskrivelse: Gikk en kort tur pga tilgjengelig tid, mørke, lite snø generelt i terrenget samt

Weather

No precipitation 20 °C 12 m/s from S ↑ 40% clouds

Snow Cover

160 cm in total Some snow drift 1 cm new snow Elevation of new snow 0 masl. Snow line at 0 masl Crust Dry

Avalanche Danger Assessment

2 Moderate Generelt lite snø. Nedsnødd rimlag mot nord. Ev skred blir små Kaldt vær vil føre til bygging av kantkorn nær bakken i hele regionen Forecast correct

Tests

CTE2@19cmQ3 Poor

Avalanche Problems

Dry slab avalanche Buried weak layer of surface hoar Within half a meter Easy to trigger 1 - Small N Observert proble var i tregrense. Usikker på rimlagets utbredelse i området pga vind

Snow Profile

14 cm 1F RG 0 mm D, 5 cm 4F RG 1 mm D, 7 cm P RG 0 mm D, 130 cm 4F RG 0 mm D -18 °C @ 0 cm 1 tests connected to snow profile Gravde ikke helt ned pga temperatur og vind

ObsID: 279385

Finnmarkskysten / Porsanger

Snow

05.12.2021 kl. 20:33

66 masl

GG (***)

Image Of Avalanche Danger Assessment
Image 1 of 2 Of:  Avalanche Danger Assessment Copyright:  GG Comment:  Bildet et tatt dagen før noen viser snømengde. Fjellene går N-S og viser østsiden.
Image Of Snow Profile
Image 2 of 2 Of:  Snow Profile Copyright: 

Weather

No precipitation 20 °C 10 m/s from S ↑ 40% clouds Svært kaldt med snøtransport utsatte steder

Snow Cover

20 cm in total Some snow drift 1 cm new snow Elevation of new snow 0 masl. Snow line at 0 masl Wind slab (hard slab) Dry

Avalanche Danger Assessment

1 Low Svært lite snø i østlige heng Kaldt klart vær med streng kulde og lite snø vil gi bygging av kantor ved bakken Forecast correct

Avalanche Problems

Dry slab avalanche Buried weak layer of faceted snow near the ground Within half a meter Difficult to trigger 1 - Small NE, E

Snow Profile

8 cm K RG 0 mm D, 12 cm F FC 1 mm D -18 °C @ 0 cm, -7.5 °C @ 20 cm

ObsID: 279378

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.