Avalanche forecast for Hallingdal Monday 2020-05-11

Highest danger level per day:
1
Low
Published:

Generally stable conditions, but danger of wet avalanches in sunexposed mountainsides.

Illustrasjon av ferdselsråd Avoid terrain traps in areas with wet loose snow.

Wet snow (loose snow avalanches)

Loose snow

Read more about the avalanche problem
1 - Small
Spontaneous release
Isolated steep slopes
Possible

What are avalanche problems?

Observations the last 3 days (map placed)

2 mm precipitation.
Fresh breeze from northwest.
-9 °C to -4 °C at 1400 m a.s.l.
Plus degrees up to 800 m a.s.l. sunday night.
Partly cloudy.

For updated info, please visit yr.no
0 mm precipitation.
Fresh breeze from northwest.
-12 °C to -3 °C at 1400 m a.s.l.
Plus degrees up to 800 m a.s.l. during renoon.
Partly cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Hallingdal / Hemsedal

Snow

10.05.2020 kl. 17:09

1414 masl

Sinnerud (Unknown)

Tests

ECTN14@15cmQ3 Good

Snow Cover

Progressiv hardhet i snødekke. 10cm nysnø på fastere sintret snø fra snøfall forrige uke. #norgesbrattkjøringsforbund

ObsID: 234248

Hallingdal / Hemsedal

Snow

08.05.2020 kl. 20:13

965 masl

Rune@obskorps (****)

Image Of Avalanche Activity
Image 1 of 1 Of:  Avalanche Activity Copyright:  Rune@obskorps

Avalanche Activity

8. May. During the day Loose dry avalanche Several (6-10). 1 - Small. Spontaneous release Specific steep slopes. E Flere ferske løssnøskred i østlig sektor

ObsID: 234063

Hallingdal / Hemsedal

Snow

08.05.2020 kl. 19:08

1414 masl

Rune@obskorps (****)

Image Of Snow Profile
Image 1 of 4 Of:  Snow Profile Copyright: 
Image Of Snow Cover
Image 2 of 4 Of:  Snow Cover Copyright:  Comment:  Noe fersk fokksnø i østlig sektor
Image Of Snow Cover
Image 3 of 4 Of:  Snow Cover Copyright:  Comment:  Stort sett skare
Image Of Snow Cover
Image 4 of 4 Of:  Snow Cover Copyright:  Comment:  Stort sett skare

Avalanche Danger Assessment

1 Low Det er stort sett stabile forhold. Skredfaren endrer seg utover dagen pga sol. Bratte områder med direkte solinnstråling vil være utsatt for løssnøskred utover dagen. Det er noe fersk fokksnø. Dette kan være ett problem i heng der dette fins. Skredene vil trolig ikke bli store. Kalde netter vil holde skredfaren stabilt lav. Fersk snø som meldes natt til søndag vil øke skredfaren Forecast correct En bør kanskje ta med fokksnøen som skredproblem

Tests

LBT@5cmQ1 Medium Gikk lett brudd i den ferske fokksnøen. Fikk ikke utslag lengre ned i snødekket

Weather

No precipitation -1 °C 5 m/s from SW ↗ 70% clouds

Snow Cover

70 cm in total Some snow drift 1 cm new snow Crust Dry Stort sett hard skare, men noen områder med fersk fokksnø. De fleste steder bare 1 cm, men opptil 5 cm i noen heng i østlig sektor. Den ferske fokksnøen løsner lett mot snøen under, men skredene vil nok ikke bli store (str 1). Snøen ellers er preget av nattefrost og at fortsatt var kuldegrader.

Avalanche Problems

Loose wet avalanche Loose snow Spontaneous release 1 - Small E, SE, S, SW, W below 1300 masl Våte løssnøskred vil være mulig der sola står på

Dry slab avalanche Buried weak layer of new snow Within half a meter The weak layer collapses easily and clean (easy propagation). Easy to trigger 1 - Small NE, E above 1200 masl

Snow Profile

5 cm F RG 1 mm D, 20 cm 1F MF 1 mm M, 40 cm P MFcr 3 mm M

ObsID: 234062

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.