The warning is currently in effect until 6:00 PM on Sunday.
"We advise avoiding all steep terrain that slopes to the north or east. In some places you can easily trigger large, dangerous avalanches," the site says.
Places where soft snow transitions into harder, more wind-packed surfaces are considered particularly dangerous. This is where the snow is likely to be most unstable.
Significant avalanche danger means dangerous conditions and corresponds to a three on the five-point scale.
In addition, there is a moderate avalanche danger - a two on a five-point scale - in the western Vindelfjällen mountains, the southern Jämtland mountains and the western Härjedalsfjällen mountains.
The situation in the Kebnekaise Mountains and in the Abisko and Riksgräns Mountains has not been assessed.
Avalanche danger is measured on a five-point scale:
1. Low danger. Conditions are generally safe. Snow may be unstable in isolated places. Avalanches unlikely.
2. Moderate danger. Hazardous conditions in parts of the terrain. It is possible for people to trigger avalanches, but spontaneous avalanches are unlikely.
3. Significant hazard. Hazardous conditions. Human-triggered avalanches are likely and spontaneous avalanches are possible.
4. High danger. Very dangerous conditions. Very likely to have spontaneous avalanches and people triggering avalanches.
5. Very high danger. Human-triggered and spontaneous avalanches are certain to occur.
Source: Avalanche Forecasts.se
