Avalanche forecast for Finnmarkskysten Thursday 2021-12-09

Highest danger level per day:
1
Low
Published:

Generally safe avalanche 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 steep slopes in combination with terrain traps.

Persistent weak layer (slab avalanches)

Buried weak layer of faceted snow near surface

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

What are avalanche problems?

Observations the last 3 days (map placed)

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
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

Observations the last 3 days

Finnmarkskysten / Porsanger

Snow

09.12.2021 kl. 11:36

290 masl

Johan@obskorps (***)

Image Of Tests
Image 1 of 5 Of:  Tests Copyright:  Johan@obskorps Comment:  Ect
Image Of Snow Cover
Image 2 of 5 Of:  Snow Cover Copyright:  Johan@obskorps Comment:  Liten sørvendt skråning
Image Of Snow Cover
Image 3 of 5 Of:  Snow Cover Copyright:  Johan@obskorps
Image Of Snow Profile
Image 4 of 5 Of:  Snow Profile Copyright:  Johan@obskorps
Image Of Snow Profile
Image 5 of 5 Of:  Snow Profile Copyright: 

Danger Sign

No signs observed Område: Generelt på fjellet

Snow Cover

40 cm in total No snowdrift 0 cm new snow Storm slab (soft slab) Dry Avblåst over topper. Samler seg mer snø I forsenkninger. På denne turen observerte jeg fokksnø også i sørlig himmelretning. Generelt tynt snødekke.

Avalanche Problems

Dry slab avalanche Buried weak layer of faceted snow above a crust Within half a meter The collapsing weak layer is thin < 3 cm. The overlying slab is soft. Very difficult to trigger 1 - Small SE, S, SW Kantkornet snø mellom skarelag høyt I Snødekket. Svært vanskelig å påvirke og dårlig bruddforplantningsevne.

Tests

LBT Ingen brudd ved LBT

ECTN30@20cmQ1 Good

Weather

No precipitation -15 °C 2 m/s Kaldt og klart vær siste døgn. Lite vind.

Avalanche Danger Assessment

1 Low Stabile forhold og lite snø. Kantkorn I alle himmelretninger, men virker som om dette er lite aktivt. Det finnes fokksnøflak I flere himmelretninger. Flak I nordlig himmelretninger er mest vindpåvirket og hard. Forecast correct

Avalanche Activity

9. Dec. During the day No avalanche activity

Snow Profile

0.5 cm F SH, 20 cm 1F RG D, 0.5 cm I MFcr, 1 cm 4F FC 1 mm/2 mm, 0.5 cm I MFcr, 15 cm 1F FC/MF 1 mm Virker som om dette eldste laget, som antakeligvis ble gjennomfuktet for noen uker siden, er blitt løsere og gått mer mot kantkorn. 1 tests connected to snow profile

ObsID: 279818

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

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 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

Tests

ECTPV@14cmQ3 Medium

LBT@14cmQ1 Ved isolering

Weather

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

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

Avalanche Activity

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

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

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.