Avalanche forecast for Sør-Troms Monday 2019-02-11

2
Moderate
Published:

Be aware of isolated wind slabs above treeline, otherwise stable conditions.

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.
2 - Medium
Low additional load
Isolated steep slopes
Possible

What are avalanche problems?

Observations the last 3 days (map placed)

0 mm precipitation.
Breeze from east.
-14 °C to -7 °C at 1100 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no
2 mm precipitation.
Breeze from southeast., change to fresh breeze from the northwest during the evening.
-12 °C to -6 °C at 1100 m a.s.l.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Sør-Troms / D1909(55220) Hinnøy 2015-2020

Snow

11.02.2019 kl. 14:27

masl

drift@svv (**)

Danger Sign

No signs observed

ObsID: 180370

Sør-Troms / D1903(55340) Senja 2014 - 2019

Snow

11.02.2019 kl. 11:50

141 masl

drift@svv (**)

Image Of Not given
Image 1 of 1 Of:  Not given Copyright:  Statens vegvesen Comment:  Bilde fra kontraktsområdet

Avalanche Danger Assessment

3 Considerable Betydelig skredfare (vurdert fra veg). Endel vind og snøfokk nv/v i fjellene. Melder noe nedbør utover dagen.. Uforandret skredfare neste døgn: Litt roligere ver, men mildt litt regn utpå dagen..

Danger Sign

Recent snowdrift

ObsID: 180330

Sør-Troms / GRATANGEN

Snow

10.02.2019 kl. 14:04

636 masl

Sondrewenaas (Unknown)

Snow Cover

No snowdrift 5 cm new snow Elevation of new snow 0 masl. Snow line at 0 masl. Layered snow begins at 0 masl Some loose snow (1-10cm) Dry

Avalanche Danger Assessment

1 Low Liten sannsynlighet for skred, evt. skred blir små og det må stor belastning til. Så etter kantkornet snø som skal være under utvikling. Fant ingen kantkornete krystaller. Noe nedbør da vi kom til bilen. Underliggende fokksnø som har blitt dannet ila. den siste uken var i denne skråningen generelt hardt. Gikk sjeldent igjennom med skia. Forecast too high

Tests

ECTX Good Stabilt snødekke, rett under nysnølager er det et fokksnølag på 5-10 cm med lett «nysnø» under. Ingen propagering i fokklaget, eller andre lag ved ectx. Svært stabilt snødekke.

Weather

No precipitation -7 °C 2 m/s 70% clouds

Danger Sign

No signs observed

Avalanche Problems

Dry slab avalanche Buried weak layer of new snow Within half a meter Very difficult to trigger Unlikely 1 - Small Isolated steep slopes SE, S, SW above 0 masl Gravde, og gikk kun i sørvendt skråning. Svært stabilt snødekke.

Avalanche Activity

10. Feb. During the day (+01:00) No avalanche activity

ObsID: 180197

Sør-Troms / SØRREISA

Snow

10.02.2019 kl. 09:34

382 masl

Eirik Fjær (Unknown)

Image Of Tests
Image 1 of 2 Of:  Tests Copyright:  Eirik Fjær
Image Of Tests
Image 2 of 2 Of:  Tests Copyright:  Eirik Fjær Comment:  Tok ut blokk med hende

Tests

ECTN26@42cmQ1 Medium

Weather

No precipitation 2 m/s 95% clouds

Snow Cover

130 cm in total Some snow drift 20 cm new snow Much loose snow (10-30cm) Dry

ObsID: 180069

Sør-Troms / D1909(55220) Hinnøy 2015-2020

Snow

08.02.2019 kl. 14:03

masl

drift@svv (**)

Danger Sign

No signs observed

ObsID: 179777

Sør-Troms / LENVIK

Snow

08.02.2019 kl. 13:11

410 masl

Jonas.hansen@live.no (***)

Image Of Avalanche Activity
Image 1 of 1 Of:  Avalanche Activity Copyright:  Jonas.hansen@live.no

Avalanche Activity

8. Feb. 18-24 (+01:00) Dry slab avalanche One (1). 1 - Small. Spontaneous release SE, S

ObsID: 179761

Sør-Troms

Snow

08.02.2019 kl. 12:36

420 masl

saaj@nortind (***)

Image Of Danger Sign
Image 1 of 3 Of:  Danger Sign Copyright:  saaj@nortind
Image Of Danger Sign
Image 2 of 3 Of:  Danger Sign Copyright:  saaj@nortind
Image Of Snow Profile
Image 3 of 3 Of:  Snow Profile Copyright: 

Snow Profile

0.1 cm F SH 1 mm/0 mm D, 4.9 cm F DF 1 mm/0 mm D, 0.5 cm K RG 0 mm/0 mm D, 3.5 cm 4F FC 2 mm/0 mm D, 5 cm K MFcr 0 mm/0 mm D, 1 cm 4F FC 2 mm/0 mm D, 0.5 cm K MFcr 0 mm/0 mm D, 27.5 cm P RG 0 mm/0 mm D, 77 cm K MF 0 mm/0 mm D -7.5 °C @ 0 cm, -9.4 °C @ 10 cm, -8 °C @ 20 cm, -7.3 °C @ 30 cm, -6 °C @ 40 cm, -5.1 °C @ 50 cm, -4.3 °C @ 60 cm, -3.7 °C @ 70 cm, -3 °C @ 80 cm 1 test connected to snow profile

Danger Sign

Surface hoar Område: I denne dalen. Beskrivelse: 5mm store overflaterim som står oppreist på snøoverflaten på alle åpne områder over , ved og rett over trengrensen i denne dalen. Har kun vært i østlig terreng.

Tests

ECTN23@14cmQ3 Good

ObsID: 179749

Sør-Troms / KVÆFJORD

Snow

08.02.2019 kl. 11:45

311 masl

Snowman (Unknown)

Image Of Snow Cover
Image 1 of 1 Of:  Snow Cover Copyright:  Snowman Comment:  Flakdannelse med snø som er på vei å bli små kantkorn under. Maks tykkelse på flak er 5 cm og er kun på små felt. Totalt sett stabile forhold.

Snow Cover

ObsID: 179814

Sør-Troms / Torsken

Snow

08.02.2019 kl. 04:09

9 masl

drift@svv (**)

Image Of Not given
Image 1 of 6 Of:  Not given Copyright:  Statens vegvesen
Image Of Not given
Image 2 of 6 Of:  Not given Copyright:  Statens vegvesen
Image Of Not given
Image 3 of 6 Of:  Not given Copyright:  Statens vegvesen
Image Of Not given
Image 4 of 6 Of:  Not given Copyright:  Statens vegvesen
Image Of Not given
Image 5 of 6 Of:  Not given Copyright:  Statens vegvesen
Image Of Not given
Image 6 of 6 Of:  Not given Copyright:  Statens vegvesen

Avalanche Observation

8. Feb 04:09 (+01:00) Snø på FV. 243 løsnet fra ur 50-200m over veg. Anslått skredvolum: <1000m^3. Blokkert veglengde: >100m.

Incident

Snow Traffic stopped Road

ObsID: 180362

Sør-Troms / Torsken

Snow

08.02.2019 kl. 01:11

212 masl

drift@svv (**)

Image Of Not given
Image 1 of 3 Of:  Not given Copyright:  Statens vegvesen
Image Of Not given
Image 2 of 3 Of:  Not given Copyright:  Statens vegvesen
Image Of Not given
Image 3 of 3 Of:  Not given Copyright:  Statens vegvesen

Avalanche Observation

8. Feb 01:11 (+01:00) Snø på FV. 232 løsnet fra fjell/dalside 50-200m over veg. Anslått skredvolum: <1000m^3. Blokkert veglengde: 50-100m.

Incident

Snow Traffic stopped Road

ObsID: 180364

Sør-Troms / Torsken

Snow

08.02.2019 kl. 00:15

87 masl

drift@svv (**)

Image Of Not given
Image 1 of 2 Of:  Not given Copyright:  Statens vegvesen
Image Of Not given
Image 2 of 2 Of:  Not given Copyright:  Statens vegvesen

Avalanche Observation

8. Feb 00:15 (+01:00) Snø på FV. 232 løsnet fra fjell/dalside 50-200m over veg. Anslått skredvolum: <1000m^3. Blokkert veglengde: 10-50m.

Incident

Snow Traffic stopped Road

ObsID: 180363

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.