Avalanche forecast for Hallingdal Tuesday 2021-04-13

Highest danger level per day:
2
Moderate
Published:

Naturally released avalanches can occur in steep sun exposed faces. Be careful in areas with wind-deposited snow.

Illustrasjon av ferdselsråd Avoid 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.

New snow (loose snow avalanches)

Loose snow

Read more about the avalanche problem
2 - Medium
Spontaneous release
Specific steep slopes
Possible

New snow (slab avalanches)

Buried weak layer of new snow

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

What are avalanche problems?

Observations the last 3 days (map placed)

8 mm precipitation.
Fresh breeze from north.
-12 °C to -5 °C at 1400 m a.s.l.
Plus degrees up to 600 m a.s.l.
Cloudy.

For updated info, please visit yr.no
0 mm precipitation.
Fresh breeze from northwest.
-12 °C to -6 °C at 1400 m a.s.l.
Plus degrees up to 300 m a.s.l. during the afternoon.
Partly cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Hallingdal / Hemsedal

Snow

11.04.2021 kl. 12:20

1471 masl

haldan (**)

Image Of Tests
Image 1 of 1 Of:  Tests Copyright:  haldan Comment:  Blokk glir ut ved isolering med spade

Avalanche Danger Assessment

Enkelt å løse ut fokksnølag som er dannet de siste par dagene.

Weather

No precipitation -4 °C 4 m/s from NW ↘ Skyfritt og lite vind.

Avalanche Problems

Loose dry avalanche The weak layer collapses easily and clean (easy propagation). Easy to trigger NE, E, SE Nysnøen som kom sist uke er ligger i leheng. På dette stedet løsnet løsnet blokken når den ble isolert uten tilleggsbelastning. Glideflaten var helt glatt. Dette snølaget var 10 cm tykt her. Andre steder er flaket tykkere.

Snow Cover

No snowdrift

ObsID: 267000

Hallingdal / Hemsedal

Snow

11.04.2021 kl. 12:10

1306 masl

Johannes_SB@Naturguide (Unknown)

Image Of Snow Cover
Image 1 of 1 Of:  Snow Cover Copyright:  Johannes_SB@Naturguide

Snow Cover

No snowdrift 1 cm new snow Surface hoar on a hard surface Dry Rimkrystaller på svært hard vindpåvirka snø.

ObsID: 266902

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.