Avalanche forecast for Lofoten og Vesterålen Tuesday 2019-12-17

1
Low
Published:

Be careful in areas with wind deposited snow, otherwise stable conditions.

Illustrasjon av ferdselsråd Avoid steep slopes with fresh wind slabs in combination with terrain traps.

New snow (slab avalanches)

Buried weak layer of new snow

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

What are avalanche problems?

Observations the last 3 days (map placed)

0 mm precipitation.
Breeze from east.
-6 °C to 0 °C at 700 m a.s.l.
Plus degrees up to 100 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no
5 mm precipitation.
Fresh breeze from southwest.
-5 °C to 1 °C at 700 m a.s.l.
Plus degrees up to 200 m a.s.l. during the evening.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Lofoten og Vesterålen / SORTLAND

Snow

17.12.2019 kl. 11:32

503 masl

barbro@obskorps (***)

Image Of Snow Cover
Image 1 of 3 Of:  Snow Cover Copyright:  barbro@obskorps Comment:  Mot SØ
Image Of Snow Cover
Image 2 of 3 Of:  Snow Cover Copyright:  barbro@obskorps Comment:  Mot NV
Image Of Snow Cover
Image 3 of 3 Of:  Snow Cover Copyright:  barbro@obskorps Comment:  Mot Ø

Weather

-2 °C 5 m/s from S ↑ 100% clouds

Avalanche Problems

Dry slab avalanche Buried weak layer of new snow between 400 masl and 0 masl

Snow Cover

Den gamle snøpakken har en glatt skareoverflate, noe lagdeling i snøen oppå (nedføyket løs nysnø i leheng) fra 200moh til 400moh. Kram snø på observasjonspunktet.

ObsID: 203356

Lofoten og Vesterålen / VÅGAN

Snow

17.12.2019 kl. 10:29

5 masl

Vegard@Obskorps (***)

Image Of Weather
Image 1 of 4 Of:  Weather Copyright:  Vegard@Obskorps
Image Of Snow Profile
Image 2 of 4 Of:  Snow Profile Copyright:  Vegard@Obskorps
Image Of Snow Cover
Image 3 of 4 Of:  Snow Cover Copyright:  Vegard@Obskorps Comment:  Mot geitgaljen
Image Of Snow Profile
Image 4 of 4 Of:  Snow Profile Copyright: 

Avalanche Danger Assessment

1 Low Bærende skare. Tykkelsen på skaren øker i takt med høyden. Det finnes fokksnø flak under den bærende skaren med skjiktlag. Under 200 er snødekket gjennomfuktet til den gamle skaren. Milde temperaturer og lite utstråling de neste dagene vil virke stabiliserende på snødekket. Litt nysnø på toppen av snødekket fra 200 MOH kan flyttes ved vind og nysnøflak blir ett problem. Forecast correct

Weather

Rain 2 °C 2 m/s 100% clouds Lett regn i lavlandet. Nysnø grense på rundt 300.

Danger Sign

No signs observed

Avalanche Activity

17. Dec. During the day No avalanche activity

Avalanche Problems

Dry slab avalanche Poor bonding between layers in wind deposited snow Within half a meter Difficult to trigger 1 - Small N, NE, E, SE, S, SW, W, NW above 2500 masl Det har vært vind fra alle kanter tidligere, så man finner fokksnø flak ialle himmelretninger under den bærende skaren. Spesielt i forsenkninger og formasjoner som samler snø.

Tests

ECTX Good

Snow Profile

5 cm F PP D, 20 cm K MFcr D, 4 cm 1F RG D, 7 cm K MFcr D, 20 cm 1F RG D, 15 cm K MFcr D, 45 cm 1F MF M -2.5 °C @ 0 cm, -2.5 °C @ 10 cm, -2.6 °C @ 20 cm, -2 °C @ 30 cm, -1.2 °C @ 40 cm, -0.7 °C @ 50 cm, -0.2 °C @ 85 cm

Snow Cover

105 cm in total No snowdrift 5 cm new snow Elevation of new snow 200 masl. Snow line at 0 masl. Layered snow begins at 200 masl Some loose snow (1-10cm) Dry Gjennomfuktet til den gamle skaren under 200. Regn i lavlandet og generelt lite snø, ujevnt fordelt i terrenget Skarejerns føre, litt nysnø på toppen av snødekket over 250 med bærende skare under.

ObsID: 203364

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.