Avalanche forecast for Svartisen Friday 2021-01-15

Highest danger level per day:
2
Moderate
Published:

Be careful in leeward slopes, wind deposited snow are covering persistent weak layers. Beware of typical signs of instability, like shooting cracks and whumpf-sounds.

Illustrasjon av ferdselsråd Avoid terrain steeper than 30 degrees and runout zones where the avalanche problem is present. Remote triggering is possible.
Illustrasjon av ferdselsråd NB: Identifying the avalanche problem is very difficult.
Illustrasjon av ferdselsråd Avoid terrain traps.

Persistent weak layer (slab avalanches)

Buried weak layer of faceted snow beneath a crust

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)

0 mm precipitation.
Calm/light breeze.
-17 °C to -8 °C at 1100 m a.s.l.
Plus degrees up to 100 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no
2 mm precipitation.
Breeze from west.
-13 °C to -6 °C at 1100 m a.s.l.
Plus degrees up to 200 m a.s.l.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Svartisen / RANA

Snow

15.01.2021 kl. 08:05

3 masl

Gøran@ObsKorps (****)

Weather

No precipitation -6 °C 100% clouds Overskyet vær, ingen nedbør (her), lite eller ingen vind. Men iløpet av natten har det kommet pittelitt (0,5cm) snø i Utskarpen

ObsID: 249234

Svartisen / BEIARN

Snow

14.01.2021 kl. 11:59

611 masl

idab@svv (***)

Image Of Snow Cover
Image 1 of 2 Of:  Snow Cover Copyright:  idab@svv Comment:  I le områder ligger de snø utøver de bart. Tatt mot nordvest
Image Of Snow Profile
Image 2 of 2 Of:  Snow Profile Copyright: 

Weather

Snow -6 °C 1 m/s from E ← 100% clouds Lett snø fall , vindstille å overskyer

Snow Cover

150 cm in total No snowdrift 1 cm new snow Elevation of new snow 0 masl Wind slab (hard slab) Dry Partier med myk snø der vinden ikke tatt alternativ lagt ifra seg snø. Snødybde varierer kraftig, stort sett lite snø, vindutsatte områder savner snø.

Notes

Der snødekket er veldig tynt, stor temperaturgradient - utvikling av begerkristaller.

Avalanche Danger Assessment

1 Low Dårlig med snø, stabilt. Det finnes flere svake lag. Trenger påfyll for økt skredfare. Forecast correct

Avalanche Problems

Dry slab avalanche Buried weak layer of faceted snow above a crust The collapsing weak layer is thin < 3 cm. Difficult to trigger 1 - Small W above 600 masl mindre områder i leheng (vestvendt) der det har samlats en del snø.

Avalanche Activity

14. Jan. During the day No avalanche activity

Tests

LBT@21cm 4 klapp på toppen sank det sammen ner til rundt mf.

Danger Sign

No signs observed

Snow Profile

9 cm 4F DF 2 mm D, 10 cm P RG 1 mm D, 2 cm F FC 1 mm D, 2 cm P MF 1 mm D, 2 cm 4F FC 1 mm D, 2 cm K MFcr 1 mm D, 1 cm 4F FC 1 mm D, 28 cm P RG 1 mm D, 2 cm 1F RG 1 mm D, 80 cm P RG 1 mm D, 20 cm K MF 1 mm D -6.4 °C @ 0 cm, -9.1 °C @ 10 cm, -8.6 °C @ 20 cm, -7.8 °C @ 30 cm, -7.2 °C @ 40 cm, -6.3 °C @ 50 cm, -5.3 °C @ 60 cm, -4.5 °C @ 70 cm, -4 °C @ 80 cm, -3.4 °C @ 90 cm, -2.8 °C @ 100 cm, -2.8 °C @ 110 cm, -2.1 °C @ 120 cm, -1.8 °C @ 130 cm, -1.4 °C @ 140 cm, -1 °C @ 150 cm, -0.5 °C @ 160 cm Kantkornlag

ObsID: 249124

Svartisen / RANA

Snow

14.01.2021 kl. 08:21

3 masl

Gøran@ObsKorps (****)

Image Of Weather
Image 1 of 1 Of:  Weather Copyright:  Gøran@ObsKorps

Weather

No precipitation -10 °C 2 m/s from SE ↖ Ingen nedbør, litt vind fra Ø sektor, noen kuldegrader. Det har vært kaldt og klart vær gjennom natten også.

ObsID: 249049

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.