Radar image forØstensjøvannet, Oslo (Oslo)
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Ongoing: Landslide risk. Caution level: yellow (Østlandet, Telemark og deler av Trøndelag)
Relatively high temperatures and windy conditions, causes significant snowmelting. Risk of slush flows is especially high in areas with more than 40-50 cm snow. The snow may in some places be fully water-saturated. Areas with fresh snow are particularly exposed, since new snow may be saturated with water quickly. Slush flows are triggered even in gentle slopes, where water accumulates. Slush flows follow terrain depressions and may develop into debris flows. Read the full forecast on Varsom.no.
Tidslinje
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Increasing danger
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Danger is over
Some landslides are expected. A few large events may occur. Exposed railways and roads may be closed. Debris avalanches/shallow slides: Soil slides and rapid movement of saturated soil in steep terrain. Debris floods: A "flood" of water, soil and rocks in steep creeks. Surface runoff in steep terrain can cause streams to change regular flow patterns. Slush slides: A flow of waterlogged snow. These landslides can start in relatively flat terrain and seek towards streams and steep slopes.Keep away from steep slopes, as well as streams and rivers with high discharge. Cleaning of drainage paths and culverts are recommended. Keep water paths and culverts free from snow, ice, sediments, waste, twigs and leaves.
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Ongoing: Flood risk. Caution level: yellow (Deler av Østlandet, Telemark og Agder)
Large snow melting due to high temperatures is expected. Continuous snow melting will increase water discharge in small and medium sized rivers. Hydropower production will in some cases act as flood control, and therefore the issued warning will not necessarily apply to all regulated waterways. Read the full forecast on Varsom.no.
Tidslinje
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Increasing danger
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Danger is over
Local flooding and/or erosional damage in streams and small rivers. Rapid increase of discharge in streams and small rivers. May cause closed roads and bridges.Cleaning of drainage paths and culverts is recommended. Keep waterways clear of snow and ice, sediments, garbage, twigs and leaves. Keep away from rivers/streams with high flow.
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Weather radar for Southeast Norway
The map shows where precipitation (rain, sleet, snow etc) falls, the colour giving an indication of the amount.
By emitting radar waves the radar registers how precipitation moves . It will then receive echoes if the waves hit precipitation particles. The animation shows precipitation during the last hours, the last picture in the sequence being the most recent. The time at which it was taken is given (in local time) in the upper right corner.
Under certain conditions the radar waves are deflected and hit the ground instead, giving false echoes. False echoes can be recognised by being fairly motionless.
