Avalanche forecast for Heiane Monday 2020-05-11

Highest danger level per day:
1
Low
Published:

Generally stable conditions, but danger of wet avalanches in sunexposed mountainsides.

Illustrasjon av ferdselsråd Avoid terrain traps in areas with wet loose snow.

Wet snow (loose snow avalanches)

Loose snow

Read more about the avalanche problem
1 - Small
Spontaneous release
Isolated steep slopes
Not given

What are avalanche problems?

Observations the last 3 days (map placed)

3 mm precipitation.
Fresh breeze from north.
-6 °C to -1 °C at 1100 m a.s.l.
Plus degrees up to 1000 m a.s.l. sunday night.
Partly cloudy.

For updated info, please visit yr.no
0 mm precipitation.
Fresh breeze from northwest.
-9 °C to 0 °C at 1100 m a.s.l.
Plus degrees up to 900 m a.s.l. during renoon.
Partly cloudy.

For updated info, please visit yr.no

Observations the last 3 days

Heiane / Sirdal

Snow

11.05.2020 kl. 20:34

818 masl

Salvesen@obskorps (***)

Image Of Danger Sign
Image 1 of 17 Of:  Danger Sign Copyright:  Salvesen@obskorps
Image Of Weather
Image 2 of 17 Of:  Weather Copyright:  Salvesen@obskorps
Image Of Snow Cover
Image 3 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  370moh øvstabø
Image Of Snow Cover
Image 4 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Hallbrekkvæven 500m sørvendt
Image Of Snow Cover
Image 5 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Røde kors hytta. Nordvendt. 550m
Image Of Weather
Image 6 of 17 Of:  Weather Copyright:  Salvesen@obskorps
Image Of Weather
Image 7 of 17 Of:  Weather Copyright:  Salvesen@obskorps
Image Of Snow Cover
Image 8 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  700moh. Et par cm fersk over bruddskare.
Image Of Snow Cover
Image 9 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  700moh
Image Of Snow Cover
Image 10 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Små dyner 800m
Image Of Snow Cover
Image 11 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Friskt. 1000moh
Image Of Snow Cover
Image 12 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Dyner mot sørøst på heimre Hunnefjell 1131moh
Image Of Snow Cover
Image 13 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Mer dyner 1000moh
Image Of Snow Cover
Image 14 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  På Litle Groheia 1022moh. Utsikt mot Heimre Hunnefjell 1131.
Image Of Snow Cover
Image 15 of 17 Of:  Snow Cover Copyright:  Salvesen@obskorps
Image Of Snow Profile
Image 16 of 17 Of:  Snow Profile Copyright:  Salvesen@obskorps
Image Of Snow Profile
Image 17 of 17 Of:  Snow Profile Copyright: 

Weather

Snow -2.7 °C 8 m/s from NW ↘ 30% clouds Skiftende vær, snøbyger og vindfullt. Temmelig kjølig siste døgn. - 4 på 1000 meter nå.

Snow Cover

100 cm in total Moderate snow drift 2 cm new snow Elevation of new snow 400 masl. Snow line at 400 masl. Layered snow begins at 800 masl Some loose snow (1-10cm) Dry Skiføre fra ca 650 fortsatt. Vinteren har kommet på besøk igjen. Hvitt på bakken fra 400m. Snødekket for øvrig varierer mellom skare (bruddskare under 800 i kveld) og mindre dyner av fersk fokksnø i sørøstlig himmelretning.

Tests

LBT@5cmQ2 God stabilitet i siste fokksnøen allerede. Binder seg raskt til underliggende varm snø.

Danger Sign

Recent snowdrift Område: I dalen/fjorden

Notes

Kveldstur.

Avalanche Danger Assessment

1 Low Generelt stabile forhold med en ørliten smak av vinter igjen. Litt nysnø og blest gjør at mest aktuelle skredproblem for øyeblikket oppleves å være nedføyket løs nysnø mot sørøst. Stabiliserer seg raskt, men holdes i hevd med ny nedbør i morgen. Forecast correct

Avalanche Problems

Dry slab avalanche Buried weak layer of new snow Within half a meter The overlying slab is soft. Difficult to trigger 1 - Small E, SE, S above 800 masl Later til å stabiliserer seg raskt.

Avalanche Activity

11. May. During the day No avalanche activity

Snow Profile

5 cm F DF 1 mm D-M, 1 cm K MFcr M, 25 cm 1F RG 1 mm M, 40 cm 4F-1F MF 5 mm M -3.1 °C @ 0 cm, -0.1 °C @ 5 cm, -0.1 °C @ 10 cm, -0.1 °C @ 56 cm

ObsID: 234346

Heiane / Sirdal

Snow

08.05.2020 kl. 13:34

1020 masl

Salvesen@obskorps (***)

Image Of Weather
Image 1 of 11 Of:  Weather Copyright:  Salvesen@obskorps
Image Of Snow Cover
Image 2 of 11 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Øvstabøstølen sørvendt 550m
Image Of Snow Cover
Image 3 of 11 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Øvstabøstølen røde kors hytta nordvendt. 560m
Image Of Snow Cover
Image 4 of 11 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  650m sørvendt
Image Of Snow Cover
Image 5 of 11 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  650m nordvendt
Image Of Snow Cover
Image 6 of 11 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  650m nordvendt
Image Of Snow Cover
Image 7 of 11 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  800moh nord
Image Of Snow Cover
Image 8 of 11 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  900m.
Image Of Snow Cover
Image 9 of 11 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Mot vest sørvest. 1000m
Image Of Snow Cover
Image 10 of 11 Of:  Snow Cover Copyright:  Salvesen@obskorps Comment:  Mot øst nordøst 1000m
Image Of Snow Profile
Image 11 of 11 Of:  Snow Profile Copyright: 

Weather

No precipitation 1.6 °C 6 m/s from W → 100% clouds Overskyet og en del vind. Såvidt nattefrost på Sinnes i natt.

Snow Cover

75 cm in total No snowdrift Snow line at 650 masl Wet loose snow Wet Sammenhengende skiføre fra 650m i Hunnedalen nå. Grovkornet til smelt frys dekke til topps. Temmelig råttent og sugete lavt nede utover dagen uavhengig av himmelretning. Mest snø i nordøstlig himmelretning grunnet lite sol og at vest sørvest har vært mest fremherskende gjennom vinteren.

Danger Sign

No signs observed

Avalanche Danger Assessment

1 Low Generelt stabile forhold. Gjelder å følge med på nattetemperatur og starte tidlig for å få kurant skiføre i denne delen av regionen nå. Glideskred kan forekomme Nedbør utover helga vil drenere godt i denne snøen og eventuell nysnø er fuktig og legger seg på gunstig vis mot varm snø. Forecast correct

Avalanche Problems

Wet slab avalanche Wet snow/melting near the ground Over one meter Spontaneous release 2 - Medium N, NE, E, SE, S, SW, W, NW below 1000 masl Setter grensen på 1000 meter selv om det trolig er mye høyere fordi det er det jeg har oversikt over i nå.

Avalanche Activity

8. May. During the day No avalanche activity

Snow Profile

25 cm 4F MF 1 mm W, 20 cm P/1F MF 3 mm M, 5 cm K MF M Isotermt

ObsID: 234043

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.