Avalanche forecast for Heiane Thursday 2020-12-03

Highest danger level per day:
2
Moderate
Published:

Be careful in areas with recent wind slabs in areas with continuous snow cover. The wind is picking up and turns to southeasterly direction. Snow precipitation particles will blow towards sheltered areas. Also, snow on the ground will be eroded and deposited in wind sheltered slopes.

Illustrasjon av ferdselsråd Aviod terrain steeper than 30 degrees with fresh wind slabs.
Illustrasjon av ferdselsråd Avoid terrain traps.

Wind drifted snow (slab avalanches)

Buried weak layer of new 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)

8 mm precipitation, up to 15 mm in the most exposed areas.
Fresh breeze from south.
-6 °C to -1 °C at 1100 m a.s.l.
Plus degrees up to 800 m a.s.l.
Cloudy.

For updated info, please visit yr.no
25 mm precipitation, up to 50 mm in the most exposed areas.
Strong breeze from southeast.
-5 °C to -1 °C at 1100 m a.s.l.
Plus degrees up to 500 m a.s.l.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Heiane / Sirdal

Snow

30.11.2020 kl. 12:57

1197 masl

Salvesen@obskorps (***)

Image Of Danger Sign
Image 1 of 10 Of:  Danger Sign Copyright:  Salvesen@obskorps Comment:  1200moh
Image Of Snow Cover
Image 2 of 10 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  900moh mot Grubbå.
Image Of Snow Cover
Image 3 of 10 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Lortabu. Hunnedalen. 650moh. Noe mer snø lavt nede her.
Image Of Snow Cover
Image 4 of 10 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  800moh i Fidjeland skitrekk.
Image Of Snow Cover
Image 5 of 10 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  900moh i Fidjeland skitrekk
Image Of Snow Cover
Image 6 of 10 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  1000moh.
Image Of Snow Cover
Image 7 of 10 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  1100moh. Noe eldre snø i skjermet terreng her
Image Of Snow Cover
Image 8 of 10 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  1100moh
Image Of Snow Cover
Image 9 of 10 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  1200moh. Hilleknuten
Image Of Snow Profile
Image 10 of 10 Of:  Snow Profile Copyright:  Salvesen@obskorps

Tests

LBT@45cmQ3 Betong. Ingen respons,

Snow Cover

10 cm in total No snowdrift 5 cm new snow Elevation of new snow 1000 masl. Snow line at 1000 masl Wet loose snow Moist Lite snø i denne delen av regionen foreløpig. Turen i dag gikk til områdets høyeste topp og foregikk til fots. Ikke hensiktsmessig med ski foreløpig. Det ligger igjen noen snøflekker (som bærer) i nordøstlig himmelretning over 1000m, bortsett fra dette lander nysnøen som nå faller rett på bakken.

Weather

Sleet 0 °C 5 m/s from S ↑ 100% clouds Regn går over til sludd ved ca 900m.

Danger Sign

Recent snowdrift Område: I denne fjellsiden. Beskrivelse: Små komethaler fra 1000moh

Avalanche Danger Assessment

1 Low Stabile forhold og bare svært lite snø øverst på toppene i denne delen av regionen foreløpig. Avtagende nedbør og kjøligere vær i morgen er gunstig.

Avalanche Problems

Dry slab avalanche Buried weak layer of new snow Within half a meter The overlying slab is soft. Very difficult to trigger 1 - Small N, NE above 1000 masl Vanskelig å se for seg noe for øyeblikket.

Avalanche Activity

30. Nov. During the day (+01:00) No avalanche activity

Snow Profile

5 cm 4F DF 1 mm M, 25 cm P MF 1 mm D, 0.5 cm 4F MF 1 mm D, 15 cm P RG 1 mm D -0.6 °C @ 0 cm, -0.9 °C @ 5 cm, -1 °C @ 10 cm, -0.9 °C @ 20 cm, -0.5 °C @ 30 cm, -0.3 °C @ 40 cm, -0.1 °C @ 45 cm

ObsID: 243285

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.