Avalanche forecast for Trollheimen Tuesday 2019-03-26

2
Moderate
Published:

Above the new snow line the danger will increase in lee areas. Wet loose avalanches are the biggest problem below new snow line, the danger increases in the afternoon, when temperature rises.

New snow (slab avalanches)

Buried weak layer of new snow

Be careful in steep slopes and around terrain traps until the new snow has stabilized. The avalanche problem is generally widely distributed on any steep slope with deep new snow. Look for cohesive new snow that breaks apart or is poorly bonded to the old snow. Cracks around your skis are a typical dangersign.
2 - Medium
Low additional load
Specific steep slopes
Possible

Wet snow (loose snow avalanches)

Loose snow

Be careful in avalanche release and runout areas. Avoid skiing in terrain traps. Timing is important. Stability decreases when the snow surface gets wet and soft. Wet snow avalanches tend to release spontaneously.
2 - Medium
Spontaneous release
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.
Breeze from north., change to moderate gale from the northwest during the afternoon.
-11 °C to -6 °C at 1400 m a.s.l.
Plus degrees up to 200 m a.s.l. during renoon.
Partly cloudy.

For updated info, please visit yr.no
5 mm precipitation.
Fresh breeze from northwest., change to strong breeze from the west during the afternoon.
-12 °C to -2 °C at 1400 m a.s.l.
Plus degrees up to 800 m a.s.l. during the evening.
Partly cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Trollheimen / Oppdal

Snow

25.03.2019 kl. 14:11

1079 masl

torolav@obskorps (*****)

Image Of Snow Profile
Image 1 of 1 Of:  Snow Profile Copyright: 

Snow Cover

70 cm in total Some snow drift 5 cm new snow Some loose snow (1-10cm) Dry Litt fuktig i solvendte heng. Sola gjør jobben sjølv om det er skyer

Weather

No precipitation -1 °C 8 m/s from W → 80% clouds

Avalanche Problems

Dry slab avalanche Buried weak layer of new snow Within half a meter The overlying slab is soft. Easy to trigger 1 - Small NE, E, SE, S above 900 masl Det er for lite nysnømengde her i området til at det utgjer eit problem, men bak store henteområder og høgare til fjells med meir vind kan flaka komme opp i str 2. Gunstig underlag og gunstig temp

Danger Sign

Recent snowdrift Små ferske flak frå nysnøen i natt. Føyker lett her no

Snow Profile

4 stratigraphy layers observed Ikkje kantkorn her

Avalanche Danger Assessment

2 Moderate Kraftig varme på nysnøen igår søndag, heilt til topps. Tok spenning ut av denne og stabiliserte. Kaldere igår ettermiddag, litt utstrålin i går kvel gav smelte/frys- skare. Litt nysnø inatt som ikkje er eit skredproblem her, men som kan være det bak store henteområder og høgare op ved meir vind. Gode bindingar mot smelte/frys- skaren som er seig og fuktig etter varmen. Lite aktuelt med kantkornproblem med varmen som har vært. Solvendte skråninger blir raskt oppvarma og stabilisert no, i skygge er snøen kaldare. Stabiliserande tendens i gml og ny snø. Må nedbør til for å auke tendensen Forecast correct Svak fg 2 og meir mot 1 her i distriktet. Truleg større flak lenger vest. God skildring av forholda

Avalanche Activity

25. Mar. During the day (+01:00) No avalanche activity

ObsID: 188115

Trollheimen / Oppdal

Snow

24.03.2019 kl. 12:28

1328 masl

TorsteinSve (Unknown)

Image Of Avalanche Observation
Image 1 of 1 Of:  Avalanche Observation Copyright:  TorsteinSve Comment:  Utløpssonen

Avalanche Observation

24. Mar 09:01 (+01:00) Naturaly released E-facing Avalanche release at 1362 masl

ObsID: 187908

Trollheimen / SUNNDAL

Snow

24.03.2019 kl. 10:03

171 masl

Erling Snøva (*)

Snow Cover

32 cm in total No snowdrift 12 cm new snow Wet loose snow Moist

Weather

No precipitation 1 °C 1 m/s from W → 25% clouds

ObsID: 187865

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.

Visit www.ut.no for topographic maps online. For slope angle maps, see NGI slope angel maps ("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.