Avalanche forecast for Indre Troms Friday 2021-05-21

Highest danger level per day:
2
Moderate
Published:

Conditions for wet avalanches. Be careful in areas where the snowpack is wet or soaking. Wet slabs could release on deep persistent weak layers.

Illustrasjon av ferdselsråd Avoid staying for a longer period in terrain steeper than 30 degrees. Avoid also runout zones.
Illustrasjon av ferdselsråd Avoid terrain traps.

Wet snow (slab avalanches)

Buried weak layer of faceted snow above a crust

Read more about the avalanche problem
4 - Very large
Spontaneous release
Isolated steep slopes
Possible

Wet snow (loose snow avalanches)

Loose snow

Read more about the avalanche problem
2 - Medium
Low additional load
Specific steep slopes
Possible

What are avalanche problems?

Observations the last 3 days (map placed)

Little to no precipitation.
Breeze from northwest.
-3 °C to 3 °C at 1100 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no
0-3 mm precipitation.
Breeze from northeast.
-4 °C to 3 °C at 1100 m a.s.l.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Indre Troms / Balsfjord

Snow

20.05.2021 kl. 10:45

980 masl

Aadne@ObsKorps (****)

Image Of Snow Profile
Image 1 of 7 Of:  Snow Profile Copyright:  Aadne@ObsKorps
Image Of Weather
Image 2 of 7 Of:  Weather Copyright:  Aadne@ObsKorps
Image Of Weather
Image 3 of 7 Of:  Weather Copyright:  Aadne@ObsKorps
Image Of Weather
Image 4 of 7 Of:  Weather Copyright:  Aadne@ObsKorps
Image Of Avalanche Activity
Image 5 of 7 Of:  Avalanche Activity Copyright:  Aadne@ObsKorps
Image Of Avalanche Activity
Image 6 of 7 Of:  Avalanche Activity Copyright:  Aadne@ObsKorps
Image Of Avalanche Activity
Image 7 of 7 Of:  Avalanche Activity Copyright:  Aadne@ObsKorps

Snow Cover

125 cm in total No snowdrift 0 cm new snow Layered snow begins at 800 masl Wet loose snow Moist

Avalanche Danger Assessment

2 Moderate Lett å løse ut våte løssnøskred i brattheng. Påregn naturlig utløste våte skred i solvendte sider. Fare for skavlbrekk som kan medføre større våte flakskred høyt i fjellet. Der snødekket er tykt høyt i fjellet kan det gå svært store flakskred i gamle intakte svake lag. Forecast correct

Weather

No precipitation 8 °C 0 m/s Overskyet, stille

Avalanche Problems

Loose snow Easy to trigger 2 - Medium N, NE, E, SE, S, SW, W, NW above 400 masl

Wet slab avalanche Buried weak layer of faceted snow above a crust Over one meter A big and identifiable crystal in the weak layer. Difficult to trigger 4 - Very large N, NE, E, SE, S, SW, W, NW above 900 masl

Avalanche Activity

20. May. 0-6 (+02:00) Loose wet avalanche Few (2-5). 1 - Small. Spontaneous release Specific steep slopes. E, SE, S, SW, W. Above 600 masl

Snow Profile

30 cm 4F MFcr 3 mm W, 95 cm 1F RG M Våt eller fuktig snø hele veien, ingen ustabil lagdeling

ObsID: 273864

Indre Troms / Målselv

Snow

18.05.2021 kl. 17:41

650 masl

mbie@obskorps (*****)

Image Of Danger Sign
Image 1 of 8 Of:  Danger Sign Copyright:  mbie@obskorps Comment:  bildet viser et sjikt i snødekket med mye vann
Image Of Weather
Image 2 of 8 Of:  Weather Copyright:  mbie@obskorps
Image Of Weather
Image 3 of 8 Of:  Weather Copyright:  mbie@obskorps
Image Of Snow Cover
Image 4 of 8 Of:  Snow Cover Copyright:  mbie@obskorps Comment:  bildet viser innsynk på ski i vått snødekke
Image Of Snow Cover
Image 5 of 8 Of:  Snow Cover Copyright:  mbie@obskorps
Image Of Snow Cover
Image 6 of 8 Of:  Snow Cover Copyright:  mbie@obskorps Comment:  bildene viser mye overflatevann i snødekket i forsenkninger i terrenget.
Image Of Snow Cover
Image 7 of 8 Of:  Snow Cover Copyright:  mbie@obskorps
Image Of Tests
Image 8 of 8 Of:  Tests Copyright:  mbie@obskorps Comment:  bildet viser sjikt i snødekket med mye vann som bryter ved LBT

Snow Cover

130 cm in total No snowdrift 0 cm new snow Snow line at 100 masl Wet loose snow Wet

Avalanche Danger Assessment

2 Moderate Kraftig snøsmelting ila dagen i dag har ført til mye vann i snødekket. Stedvis store ansamlinger av overflatevann i forsenkninger i terrenget. Fare for sørpeskred i slake terrengformasjoner som samler mye vann. I bratt terreng er det fare for våteløssnø-, flakskred. Finner sjikt med mye vann i snødekket. Noe lavere temperaturer ila natt til i morgenvil føre til at snødekket stabiliserer seg noe før det igjen ila morgendagen vil være fare for kraftig snøsmelting og opphopning av vann i snødekket og i forsenkninger i terrenget. Vil fortsatt være fare for sørpeskred ila morgendagen i slakt terreng. Forecast correct

Danger Sign

Much water in the snow Område: Generelt på fjellet

Tests

LBT@77cmQ2 bryter ved moderat til stor belastning. Bryter i sjikt med mye vann i snøen

ECTX Good

Weather

No precipitation 7 °C 7 m/s from SE ↖ 70% clouds tidvis kraftig solinnstråling ila dagen. lettskyet pent vær utover ettermiddagen.

Avalanche Problems

Loose wet avalanche Loose snow Spontaneous release 2 - Medium N, NE, E, SE, S, SW, W, NW below 900 masl det er fare for sørpeskred i områder med mye smeltevannsansamlinger. Stedvis mye overflatevann i snødekket i forsenkninger i terrenget.

Wet slab avalanche Water pooling in/above snow layers Within a meter Spontaneous release 3 - Large N, NE, E, SE, S, SW, W, NW

Avalanche Activity

18. May. During the day (+02:00) No avalanche activity ingen fersk skredaktivitet observert på strekningen Sørreisa-Myrefjell i dag

Snow Profile

5 cm 4F MF W, 25 cm 1F MF W, 30 cm P MF W, 4 cm 1F MF V, 12 cm P MF W, 3 cm 1F MF V, 51 cm P MF W 0 °C @ 0 cm, 0 °C @ 10 cm, 0 °C @ 130 cm 1 tests connected to snow profile snødekket er isotermt i denne høyden ned til ca 150-200cm ned i snødekket

ObsID: 273725

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.