Avalanche forecast for Lyngen Wednesday 2019-02-13

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  3. Avalanche forecast for Lyngen Wednesday 2019-02-13

2
Moderate
Published:

Be aware that there can be pockets with persistent weak layers and unstable wind slabs. Be careful in lee areas with wind deposited snow, typically behind ridges, ribs and in gullies. Especially where the wind deposited slabs are thin or soft, slab avalanche is easier to trigger here. The weather forecast is uncertain.

Avalanche problems and travel advice

Wind drifted snow (slab avalanches)

Buried weak layer of new snow

Be careful and keep distance to each other in steep (above 30 degrees) terrain with fresh wind deposited snow, especially convex terrain. An avalanche is easier to trigger where wind slabs are thin or soft. Look for areas where the wind recently has deposited snow, typically behind ridges, ribs and in gullies. Remember that local wind effects will cause variation in where the wind slabs occur.
Avalanche size:
2 - Medium
Trigger/release:
Low additional load
Distribution:
Isolated steep slopes
Probability:
Possible

Persistent weak layer (slab avalanches)

Buried weak layer of faceted snow above a crust

Keep distance to each other when traveling in avelanche terrain. NB, remote triggering is possible. Make very conservative route choices, especially in unknown terrain, after snowfall and if temperatures rise. Identifying areas where the weak layer is present might be difficult and requires experience. Danger signs are whoumpf-sounds and cracking which means that you influence weak layers and should avoid avalanche terrain. However, absence of signs does not mean it is safe.
Avalanche size:
2 - Medium
Trigger/release:
High additional load
Distribution:
Isolated steep slopes
Probability:
Possible

What are avalanche problems?

0 mm precipitation.
Strong breeze from southeast., change to fresh breeze from the south during the evening.
-13 °C to -5 °C at 1400 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no
3 mm precipitation.
Fresh breeze from south., change to breeze from the southeast during the afternoon.
-12 °C to -5 °C at 1400 m a.s.l.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Rapportert av: drift@svv (**)

i kommune: LYNGEN

Dangersign

Large snowfall

Dangersign

Recent snowdrift

Rapportert av: Patrik@ObsKorps (****)

i kommune: LYNGEN

Avalanche evaluation

2 Moderate

Avalanche problems

Buried weak layer of faceted snow beneath a crust

Dangersign

No signs observed

Coloumn test

Not given

ECTX@0cmNot specified

Snow profile

Antall Lag: 9

Total dybde: 108,50 cm

Weather

Not observed

-1.0 grader

Click here for pictures and the full observation

Rapportert av: drift@svv (**)

i kommune: TROMSØ

Dangersign

Large snowfall

Dangersign

Recent snowdrift

Rapportert av: magnush@met (***)

i kommune: TROMSØ

Avalanche evaluation

2 Moderate

Avalanche problems

Poor bonding between layers in wind deposited snow

Snow cover

120 cm snødybde

5 cm nysnø siste døgn

Snow profile (2012)

104142

Dangersign

No signs observed

Avalanche activity

No avalanche activity Not given

Not given

Coloumn test

Not given

ECTX@0cmNot specified

Snow profile

Antall Lag: 6

Total dybde: 135,00 cm

Weather

Not observed

-5.0 grader

Click here for pictures and the full observation

Rapportert av: drift@svv (**)

i kommune: LYNGEN

Dangersign

No signs observed

Rapportert av: drift@svv (**)

i kommune: LYNGEN

Dangersign

No signs observed

See all observations - RegObs

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.

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.