Norwegian

Avalanche forecast for Heiane Thursday 2020-05-14

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  3. Avalanche forecast for Heiane Thursday 2020-05-14
Highest danger level per day:
2
Moderate
Published:

If/when the sun comes out, the danger will rise to 2-moderate in areas where the snow becomes wet and soft. Predominantly stable conditions, but be aware in steep lee areas in higher elevations, small dry wind slabs are possible to release. Be careful close to and in terrain traps.

Advice

Illustrasjon av ferdselsråd Aviod terrain steeper than 30 degrees with new snow during and after the snowfall until the new snow has stabilized.
Illustrasjon av ferdselsråd Avoid terrain traps.

Avalanche problems

New snow (loose snow avalanches)

Loose snow

Read more about the avalanche problem
Avalanche size:
2 - Medium
Trigger/release:
Spontaneous release
Distribution:
Isolated steep slopes
Probability:
Possible

New snow (slab avalanches)

Buried weak layer of new snow

Read more about the avalanche problem
Avalanche size:
2 - Medium
Trigger/release:
Low additional load
Distribution:
Isolated steep slopes
Probability:
Possible

What are avalanche problems?

Observations the last 3 days (map placed)

0 mm precipitation.
Breeze from northwest.
-10 °C to 0 °C at 1100 m a.s.l.
Plus degrees up to 800 m a.s.l. during the afternoon.
Partly cloudy.

For updated info, please visit yr.no
6 mm precipitation, up to 12 mm in the most exposed areas.
Breeze from west.
-8 °C to 0 °C at 1100 m a.s.l.
Plus degrees up to 800 m a.s.l. during the afternoon.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Heiane / Sirdal

Snow

11.05.2020 kl. 20:34

818 masl

Salvesen@obskorps (***)

Image Of Danger Sign
Image 1 of 17 Of:  Danger Sign Copyright:  Salvesen@obskorps
Image Of Weather
Image 2 of 17 Of:  Weather Copyright:  Salvesen@obskorps
Image Of Snow Cover
Image 3 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  370moh øvstabø
Image Of Snow Cover
Image 4 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Hallbrekkvæven 500m sørvendt
Image Of Snow Cover
Image 5 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Røde kors hytta. Nordvendt. 550m
Image Of Weather
Image 6 of 17 Of:  Weather Copyright:  Salvesen@obskorps
Image Of Weather
Image 7 of 17 Of:  Weather Copyright:  Salvesen@obskorps
Image Of Snow Cover
Image 8 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  700moh. Et par cm fersk over bruddskare.
Image Of Snow Cover
Image 9 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  700moh
Image Of Snow Cover
Image 10 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Små dyner 800m
Image Of Snow Cover
Image 11 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Friskt. 1000moh
Image Of Snow Cover
Image 12 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Dyner mot sørøst på heimre Hunnefjell 1131moh
Image Of Snow Cover
Image 13 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Mer dyner 1000moh
Image Of Snow Cover
Image 14 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  På Litle Groheia 1022moh. Utsikt mot Heimre Hunnefjell 1131.
Image Of Snow Cover
Image 15 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps
Image Of Snow Profile
Image 16 of 17 Of:  Snow Profile Copyright:  Salvesen@obskorps
Image Of Snow Profile
Image 17 of 17 Of:  Snow Profile Copyright: 

Avalanche Activity

• 11. May. During the day (+02:00) • No avalanche activity

Snow Cover

• 100 cm in total • Moderate snow drift • 2 cm new snow • Elevation of new snow 400 masl. Snow line at 400 masl. Layered snow begins at 800 masl • Some loose snow (1-10cm) • Dry • Skiføre fra ca 650 fortsatt. Vinteren har kommet på besøk igjen. Hvitt på bakken fra 400m. Snødekket for øvrig varierer mellom skare (bruddskare under 800 i kveld) og mindre dyner av fersk fokksnø i sørøstlig himmelretning.

Weather

• Snow • -2.7 °C • 8 m/s from NW ↘ • 30% clouds • Skiftende vær, snøbyger og vindfullt. Temmelig kjølig siste døgn. - 4 på 1000 meter nå.

Danger Sign

• Recent snowdrift • Område: I dalen/fjorden

Notes

• Kveldstur.

Avalanche Danger Assessment

• 1 Low • Generelt stabile forhold med en ørliten smak av vinter igjen. Litt nysnø og blest gjør at mest aktuelle skredproblem for øyeblikket oppleves å være nedføyket løs nysnø mot sørøst. • Stabiliserer seg raskt, men holdes i hevd med ny nedbør i morgen. • Forecast correct

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The overlying slab is soft. • Difficult to trigger • 1 - Small • E, SE, S above 800 masl • Later til å stabiliserer seg raskt.

Tests

• LBT@5cmQ2 • God stabilitet i siste fokksnøen allerede. Binder seg raskt til underliggende varm snø.

Snow Profile

• 5 cm F DF 1 mm D-M, 1 cm K MFcr M, 25 cm 1F RG 1 mm M, 40 cm 4F-1F MF 5 mm M • -3.1 °C @ 0 cm, -0.1 °C @ 5 cm, -0.1 °C @ 10 cm, -0.1 °C @ 56 cm

Go to observation
ObsID: 234346

See all observations

Avalanche problems

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.