Avalanche forecast for Romsdal Friday 2020-01-31

2
Moderate
Published:

Be aware of isolated wind slabs, otherwise stable conditions.

Illustrasjon av ferdselsråd Aviod terrain steeper than 30 degrees with fresh wind slabs.
Illustrasjon av ferdselsråd Avoid terrain traps.

Wind drifted snow (slab avalanches)

Poor bonding between layers in wind deposited snow

Read more about the avalanche problem
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 south., change to strong breeze from the southeast during the evening.
-11 °C to -6 °C at 1400 m a.s.l.
Plus degrees up to 200 m a.s.l.
Partly cloudy.

For updated info, please visit yr.no
2 mm precipitation.
Strong breeze from southeast., change to strong breeze from the southwest during the afternoon.
-10 °C to -3 °C at 1400 m a.s.l.
Plus degrees up to 600 m a.s.l. during renoon.
Cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Romsdal / RAUMA

Snow

30.01.2020 kl. 16:24

941 masl

Halvor@NVE (*****)

Image Of Weather
Image 1 of 7 Of:  Weather Copyright:  Halvor@NVE Comment:  Pent klart vær og lite vind foreløpig.
Image Of Snow Cover
Image 2 of 7 Of:  Snow Cover Copyright:  Halvor@NVE Comment:  5 cm lett snø over bærende skare.
Image Of Snow Cover
Image 3 of 7 Of:  Snow Cover Copyright:  Halvor@NVE Comment:  Generelt lite snø i fjellet for årstiden. OK i store formasjoner og veldig lite ellers i terrenget.
Image Of Snow Cover
Image 4 of 7 Of:  Snow Cover Copyright:  Halvor@NVE Comment:  Kantkornutvikling under skaren. Utviklingen er i full gang, men ikke kommet lengre enn ca 1 mm her. Skaren er også bærene de fleste steder opp til ca 800 moh
Image Of Avalanche Problems
Image 5 of 7 Of:  Avalanche Problems Copyright:  Comment:  Kantkorn under skare gir klokkerent brudd, men skaren er for det meste tykk her.
Image Of Avalanche Problems
Image 6 of 7 Of:  Avalanche Problems Copyright:  Comment:  Kantkorn er maks 1mm
Image Of Snow Profile
Image 7 of 7 Of:  Snow Profile Copyright: 

Snow Profile

5 cm F PP 0 mm/0 mm D, 5 cm P MFcr 0 mm/0 mm, 1 cm 4F FC 1 mm/0 mm, 10 cm P RG 0 mm/0 mm, 0.5 cm 1F FC 1 mm/0 mm, 10 cm P RG 0 mm/0 mm, 20 cm P MF 0 mm/0 mm -5.2 °C @ 0 cm, -3 °C @ 10 cm, -2.1 °C @ 20 cm, -1 °C @ 30 cm ca 850 moh Ø Skarelaget øverst begynner å avta i tykkelse på denne høyden og blir gradvis tynner opp mot 1000 moh.

Weather

10% clouds

Avalanche Problems

Dry slab avalanche Buried weak layer of new snow Within half a meter The weak layer collapses easily and clean (easy propagation). The collapsing weak layer is thin < 3 cm. The overlying slab is soft. A big and identifiable crystal in the weak layer. Easy to trigger 1 - Small N, NE, E, SE, NW above 1000 masl Det er også god utvikling i kantkorn under skare, men denne er stort sett bærende og utgjør foreløpig ikke et skredproblem. Over 1000 moh kan det være mulighet for større skredstørrelser.

Snow Cover

5 cm new snow Elevation of new snow 300 masl Some loose snow (1-10cm) 5 cm kald og lett snø fra i natt over søndagens bærende skarelag her opp til 900 moh. Klart vær har gitt stor utstråling og snøen er fjærlett. På hardt underlag er den veldig lett å flytte på. Mye fint skiføre.

Avalanche Danger Assessment

1 Low Lite skredproblem under 900 moh her pga skarelag fra søndagens mildvær. Vind vil lett flytte på den siste snøen som er svært lett, men dette vil gi Str 1 skred. Over 1000 moh er det sannsynligvis større, ferske flakdannelser. Fg 1 opp til 1000 moh økende med mer vind Forecast correct

ObsID: 210518

Romsdal / Molde

Snow

30.01.2020 kl. 15:11

1199 masl

Frode (Unknown)

Image Of Tests
Image 1 of 5 Of:  Tests Copyright:  Frode Comment:  Trappetrinnbrudd i fokksnøen
Image Of Snow Profile
Image 2 of 5 Of:  Snow Profile Copyright:  Frode
Image Of Snow Cover
Image 3 of 5 Of:  Snow Cover Copyright:  Frode Comment:  Sørover gjuratind i bakgrunnen
Image Of Snow Cover
Image 4 of 5 Of:  Snow Cover Copyright:  Frode Comment:  Vestlige heng avblåst. Østlige med snø.
Image Of Snow Profile
Image 5 of 5 Of:  Snow Profile Copyright: 

Snow Profile

3 cm F DF D, 25 cm 4F RG 0 mm D, 9 cm K MFcr 1 mm D, 3 cm 4F RG 1 mm D, 3 cm K MFcr 1 mm D, 3 cm 1F RG 0 mm D, 25 cm K MFcr 1 mm D, 30 cm 1F MF 1 mm D 1 test connected to snow profile

Weather

No precipitation -5 °C 2 m/s from S ↑ 20% clouds

Notes

Måtte slå hardt på lille blokktest for å få utslag. Q3 brudd. Gjort i nordlig heng, stabilt fokksnølag.

Tests

LBT@28cmQ3 Good Trappetrinnbrudd i fokksnøen

LBT@28cmQ3

Snow Cover

101 cm in total No snowdrift 3 cm new snow Snow line at 300 masl Storm slab (soft slab) Dry

Avalanche Danger Assessment

1 Low Fg1 Fokksnølag stabilt. Ingen kantkorn å se.

ObsID: 210515

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.