Avalanche forecast for Vest-Telemark Thursday 2021-02-25

Highest danger level per day:
2
Moderate
Published:

General unstable conditions. Wet avalanches are expected. In the mountains where precipitation falls as snow, avoid new and fresh stormslabs.

Illustrasjon av ferdselsråd Wet surface: Avoid staying for a longer period in terrain steeper than 30 degrees. Avoid also runout zones.
Illustrasjon av ferdselsråd Dry surface: Avoid terrain steeper than 30 degrees and runout zones where the avalanche problem is present. Remote triggering is possible.
Illustrasjon av ferdselsråd Dry surface: NB: Identifying the avalanche problem is very difficult.
Illustrasjon av ferdselsråd Avoid terrain traps.

Persistent weak layer (slab avalanches)

Buried weak layer of surface hoar

Read more about the avalanche problem
3 - Large
Low additional load
Isolated steep slopes
Possible

Wet snow (slab avalanches)

Buried weak layer of faceted snow near surface

Read more about the avalanche problem
3 - Large
Spontaneous release
Isolated steep slopes
Possible

What are avalanche problems?

Observations the last 3 days (map placed)

8 mm precipitation, up to 22 mm in the most exposed areas.
Strong breeze from southwest., change to breeze from the southwest during the evening.
1 °C to 4 °C at 1100 m a.s.l.
Plus degrees up to 1800 m a.s.l. during renoon.
Cloudy.

For updated info, please visit yr.no
5 mm precipitation, up to 12 mm in the most exposed areas.
Breeze from southwest., change to moderate gale from the west during the evening.
-2 °C to 3 °C at 1100 m a.s.l.
Plus degrees up to 1300 m a.s.l. thursday night.
Partly cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Vest-Telemark / Tinn

Snow

25.02.2021 kl. 14:42

1350 masl

Sturla (Unknown)

Image Of Notes
Image 1 of 5 Of:  Notes Copyright:  Sturla
Image Of Notes
Image 2 of 5 Of:  Notes Copyright:  Sturla
Image Of Notes
Image 3 of 5 Of:  Notes Copyright:  Sturla
Image Of Notes
Image 4 of 5 Of:  Notes Copyright:  Sturla
Image Of Snow Profile
Image 5 of 5 Of:  Snow Profile Copyright: 

Notes

Testen ble tatt i fokksnø østvendt heng. Snødekke var stort bærende skare fra skoggrense og opp.

Snow Cover

130 cm in total No snowdrift Crust Dry

Avalanche Problems

Loose wet avalanche Difficult to trigger 2 - Medium S, SW, W between 1300 masl and 600 masl

Weather

No precipitation 3 °C 10 m/s from NW ↘ 50% clouds

Tests

LBT@7cmQ3 Bruddet gikk forholdsvis lett i overgang skare fokksnø

Danger Sign

No signs observed

Snow Profile

7 cm K MFcr 2 mm D, 7 cm P RG 1 mm M, 12 cm 4F RG 1 mm M, 2 cm K MFcr 1 mm M, 20 cm 1F RG M, 6 cm P MFcr 1 mm M, 40 cm F RG 1 mm M 0 °C @ 12 cm

ObsID: 257889

Vest-Telemark / Haukelili

Snow

25.02.2021 kl. 12:48

614 masl

drift@svv (**)

Image Of Not given
Image 1 of 1 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen

Avalanche Observation

25. Feb 12:48 Snø på RV9 løsnet fra vegskjæring 0-50m. Blokkert veglengde: 0-10m.

ObsID: 257842

Vest-Telemark / Tinn

Snow

25.02.2021 kl. 11:44

653 masl

drift@svv (**)

Image Of Not given
Image 1 of 3 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 2 of 3 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 3 of 3 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen

Avalanche Observation

25. Feb 11:44 Snø på FV37 løsnet fra vegskjæring 0-50m.

Incident

Snow Traffic stopped Road

ObsID: 258603

Vest-Telemark / Mellom urbøuri og Roe

Snow

25.02.2021 kl. 10:02

822 masl

drift@svv (**)

Image Of Not given
Image 1 of 4 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 2 of 4 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 3 of 4 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 4 of 4 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen

Avalanche Observation

25. Feb 10:02 Snø på FV362 løsnet fra vegskjæring 0-50m. Blokkert veglengde: 0-10m.

ObsID: 257841

Vest-Telemark / Haukeli lia

Snow

24.02.2021 kl. 20:43

625 masl

drift@svv (**)

Image Of Not given
Image 1 of 3 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 2 of 3 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 3 of 3 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen

Avalanche Observation

25. Feb 11:44 Snø på RV9 0-50m. Anslått skredvolum på veg: <10m^3.Blokkert veglengde: 10-50m.

ObsID: 257697

Vest-Telemark / Haukeli lia

Snow

24.02.2021 kl. 15:29

1080 masl

drift@svv (**)

Image Of Not given
Image 1 of 7 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 2 of 7 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 3 of 7 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 4 of 7 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 5 of 7 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 6 of 7 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 7 of 7 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen

Avalanche Observation

24. Feb 15:29 Snø på RV9 løsnet fra fjell/dalside 50-200m. Anslått skredvolum på veg: <10m^3.Blokkert veglengde: 10-50m.

Incident

Snow Only material damage Road

ObsID: 257701

Vest-Telemark / Haukeli lia

Snow

24.02.2021 kl. 12:00

1098 masl

drift@svv (**)

Image Of Not given
Image 1 of 3 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 2 of 3 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen
Image Of Not given
Image 3 of 3 Of:  Not given Copyright:  drift@svv Comment:  Statens vegvesen

Avalanche Observation

24. Feb 12:00 Snø på RV9 løsnet fra fjell/dalside 0-50m. Anslått skredvolum på veg: <10m^3.Blokkert veglengde: 0-10m.

Incident

Snow Traffic stopped Road

ObsID: 257698

Vest-Telemark / Vinje

Snow

23.02.2021 kl. 14:03

1059 masl

Sturla (Unknown)

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

Notes

Snøprofil tatt i fokksnø i sv heng

Snow Cover

No snowdrift Crust Dry

Weather

No precipitation 2 °C 2 m/s from S ↑ 100% clouds

Danger Sign

No signs observed

Snow Profile

7 cm K MFcr 1 mm D, 22 cm 4F RG 1 mm M, 2 cm K MFcr 2 mm D, 35 cm 4F RG 1 mm M -0.2 °C @ 0 cm, -0.1 °C @ 10 cm, -0.4 °C @ 40 cm, -0.5 °C @ 60 cm, -0.4 °C @ 70 cm

ObsID: 257432

Vest-Telemark / Vinje

Snow

23.02.2021 kl. 12:01

1099 masl

Bård Henning@obskorps (****)

Image Of Snow Cover
Image 1 of 4 Of:  Snow Cover Copyright:  Bård Henning@obskorps
Image Of Snow Profile
Image 2 of 4 Of:  Snow Profile Copyright:  Bård Henning@obskorps
Image Of Tests
Image 3 of 4 Of:  Tests Copyright:  Bård Henning@obskorps
Image Of Snow Profile
Image 4 of 4 Of:  Snow Profile Copyright: 

Snow Cover

No snowdrift Crust Dry

Weather

No precipitation 2 °C 3 m/s from SE ↖ 100% clouds

Avalanche Problems

Dry slab avalanche Poor bonding between layers in wind deposited snow Within half a meter The collapsing weak layer is thin < 3 cm. Difficult to trigger 3 - Large N, S, SW, W, NW Dårlig binding der det ligger fokksnø, men det ligger under skare

Avalanche Activity

23. Feb. During the day No avalanche activity Ikke registrert i dette omr

Avalanche Danger Assessment

2 Moderate Mildværet har satt spor i fjellet. Stort sett kram snø helt ned til bakken Meld nedbør og mildt de neste dagen. Kan komme naturlig utløste skred i bratt terreng Forecast correct

Tests

ECTP15@41cmQ2 Medium

Danger Sign

Snow Profile

7 cm K MFcr 1 mm M, 10 cm 4F MF 2 mm M, 1.5 cm K MFcr M, 14 cm F MF 2 mm M

ObsID: 257433

Vest-Telemark / Valle

Snow

23.02.2021 kl. 11:45

1019 masl

Roy (Unknown)

Image Of Tests
Image 1 of 1 Of:  Tests Copyright:  Roy

Tests

LBT@120cm

ObsID: 257380

Vest-Telemark / Valle

Snow

23.02.2021 kl. 11:42

1019 masl

ElisabethS@Obskorps (***)

Image Of Weather
Image 1 of 5 Of:  Weather Copyright:  ElisabethS@Obskorps
Image Of Snow Cover
Image 2 of 5 Of:  Snow Cover Copyright:  ElisabethS@Obskorps
Image Of Snow Cover
Image 3 of 5 Of:  Snow Cover Copyright:  ElisabethS@Obskorps Comment:  Synker godt ned i snøen, ca 30cm hvor det ikke er skarelag.
Image Of Snow Profile
Image 4 of 5 Of:  Snow Profile Copyright:  ElisabethS@Obskorps
Image Of Snow Profile
Image 5 of 5 Of:  Snow Profile Copyright: 

Snow Cover

No snowdrift Crust Moist Skarelag på 1-10cm variere fra hvor man er.. inne i skogen er skarelaget 1-2 cm. På rygger og slik er det 10+cm

Weather

No precipitation 0 °C 1 m/s 45% clouds

Avalanche Problems

Loose wet avalanche Loose snow Difficult to trigger 1 - Small N, NE, E, SE, S, SW, W, NW above 600 masl De første 50cm av snøen er våt og tung. Med overliggende skare.

Avalanche Activity

23. Feb. During the day Loose wet avalanche Few (2-5). 1 - Small. Easy to trigger Isolated steep slopes. N, NE, E, SE, S, SW, W, NW Hvor det er over 30grader og hvor sola har varmet så har det gått noen små naturlig utløste skred.

Avalanche Danger Assessment

2 Moderate Våt snø de første 30-50cm. Et hardt skarelag på toppen som variere fra 1/2cm -10cm. Det er mye vann i de øverste lagene. Mildvær eller snø nå kan gi økt faregarad. Forecast correct 2 i dag er riktig. Men mer nedbør eller snø vil 3 være rett.

Tests

ECTP24@148cmQ2 Good Samme som LBT. Dårlig binding mellom RG og FC

LBT@148cmQ1 Binding mellom RG og FC laget går i brudd. En blokk. Sklir av.

Danger Sign

No signs observed

Snow Profile

7 cm K MFcr 2 mm, 22 cm 1F MF 2 mm W, 7 cm K MFcr Dette er det gamle laget hvor det lå en lomme med DHog SH, 50 cm 1F RG 1 mm M, 60 cm P RG 1 mm D, 15 cm F FC 2 mm D -1.2 °C @ 0 cm, -0.5 °C @ 20 cm, -0.4 °C @ 40 cm, -3.5 °C @ 60 cm, -5 °C @ 80 cm, -5.3 °C @ 100 cm, -5 °C @ 120 cm, -5 °C @ 140 cm 1 tests connected to snow profile

ObsID: 257477

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.