Tuesday to Wednesday afternoon it is expected above zero temperatures and a lot of rain in Nordland and Troms. It is expected 30-60mm precipitation in 24 hours, on Helgeland locally 60-90mm.
Area
Applies to Nordland and Troms.
Instructions
Consider the need for preventive measures. The need for emergency preparedness shall be assessed continuously by emergency response actors. Check road reports (175.no). Adjust the speed and use caution while driving.
Consequences
Risk of flooding of low-lying areas in densely populated areas. Check varsom.no for more information. Locally difficult driving conditions, especially at waterways. Roads may be closed. Road conditions affected with road spray and hydroplaning in some places.
Timeline
- Tuesday, 18 January 07:00 - ongoing danger
- Wednesday, 19 January 13:00 - danger is over
Landslides may be expected. Exposed railways and roads may be closed. Heavy rain is expected. Relatively high temperatures and windy conditions causes significant snowmelting. The expected rain will increase the danger of landslides, especially where groundwater and soil moisture are already high. Risk of slushflows is especially high in areas with more than 50 cm snow. Slushflows are triggered even in relatively gentle slopes, where water accumulates. Slushflows follow terrain depressions and may develop into debris flows.
Area
Applies to deler av Trøndelag, Nordland og Troms.
Instructions
Keep water paths and culverts free of snow, ice, gravel, waste, twigs and leaves. Clogged waterways with dammed water may cause landslides.
Consequences
Landslides may be expected. Exposed railways and roads may be closed.
On Tuesday we expect high avalanche danger for region Helgeland. Avalanche problem is wet snow (slab avalanches), wind drifted snow (slab avalanches) and persistent weak layer (slab avalanches).
Area
Applies to Helgeland.
Instructions
Travelling in avalanche terrain is not recommended. Avalanches may hit avalanche-exposed roads and settlements.
| Time | Weather | Temp. | Precip. mm | Wind(gust) m/s | Wind desc. |
|---|---|---|---|---|---|
 | 6° | 0.3 to 1.8 | 7 m/s from south west with gusts at 17 m/s | Moderate breeze from south west with gusts at 17 m/s | |
| 6° | 0.1 to 1.4 | 7 m/s from south west with gusts at 17 m/s | Moderate breeze from south west with gusts at 17 m/s | |
| 6° | 0.3 to 2.1 | 7 m/s from south west with gusts at 16 m/s | Moderate breeze from south west with gusts at 16 m/s | |
 | 6° | 0.9 to 3.9 | 4 m/s from south west with gusts at 16 m/s | Gentle breeze from south west with gusts at 16 m/s | |
| 6° | 1.3 to 4.6 | 6 m/s from south west with gusts at 15 m/s | Moderate breeze from south west with gusts at 15 m/s |