From Wednesday afternoon to Thursday evening locally 10-25 cm snow due to snow showers from northwest is expected, mostly in inner areas. In the mountain more snow is expected.
Area
Applies to Sogn and Fjordane, Moere and Romsdal and Troendelag.
Instructions
Vulnerable installations and objects should be protected. Allow some extra time for transportation and driving. Use tires fit for winter conditions and use caution while driving. The need for emergency preparedness shall be assessed continuously by emergency response actors.
Consequences
Vulnerable infrastructure can be affected due to accumulation of snow. Travel time may increase on some journeys. Local driving conditions may become difficult. Blowing snow causes reduced visibility and possibly convoys and/or closed roads.
Timeline
- Wednesday, 19 January 13:00 - ongoing danger
- Thursday, 20 January 19:00 - danger is over
From Wednesday evening strong wind gusts from west and northwest are expected, locally 27-35 m/s, strongest wind gusts at the coast. The wind decreases Thursday forenoon.
Area
Applies to Trøndelag.
Instructions
Secure loose objects. Avoid unnecessary journeys to exposed places. Follow advice and check status from transport operators. Check road reports (175.no). Be careful in coastal areas. In advance consider measures to limit damage.
Consequences
Loose items may be taken by the wind. Possibly cancelled departures for ferry, plane, or other transport. Bridges may be closed. Some journeys may have longer travel times. The power supply may be impacted, due to tree(s) falling over. Some roads may be closed due to trees or other objects in the road. Blowing snow causes reduced visibility and possibly convoys and/or closed roads. High waves may cause damage to infrastructure and buildings in the coastal zone. The strong wind may cause locally high waves in fjords and lakes.
Timeline
- Wednesday, 19 January 19:00 - wind increased
- Thursday, 20 January 12:00 - wind wanes
On Thursday we expect considerable avalanche danger for region Sør-Trøndelag. Avalanche problem is wind drifted snow (slab avalanches).
Area
Applies to Sør-Trøndelag.
Instructions
Travelling in avalanche terrain requires advanced knowledge, experience in route finding and ability to identify the avalanche problem. Generally, it is recommended to avoid avalanche terrain. Avalanches may hit some avalanche-exposed roads and occasionally settlements.
The three severity levels
Orange - considerable dangerRead more about the severity levels at hjelp.yr.no
| Time | Weather | Temp. | Precip. mm | Wind(gust) m/s | Wind desc. |
|---|---|---|---|---|---|
 | 0° | 0 to 0.7 | 15 m/s from north west with gusts at 32 m/s | Moderate gale from north west with gusts at 32 m/s | |
 | 0° | 0 to 0.6 | 13 m/s from north with gusts at 23 m/s | Strong breeze from north with gusts at 23 m/s | |
 | 0° | 0 to 0.8 | 14 m/s from north with gusts at 23 m/s | Moderate gale from north with gusts at 23 m/s | |
| 0° | 0 to 0.4 | 15 m/s from north west with gusts at 23 m/s | Moderate gale from north west with gusts at 23 m/s | |
| 0° | 0 to 0.4 | 13 m/s from north west with gusts at 22 m/s | Strong breeze from north west with gusts at 22 m/s | |
| 0° | 0 to 0.5 | 12 m/s from north west with gusts at 25 m/s | Strong breeze from north west with gusts at 25 m/s | |
 | 0° | 0 to 1 | 11 m/s from north with gusts at 23 m/s | Strong breeze from north with gusts at 23 m/s | |
| 1° | 0 to 0.8 | 12 m/s from north with gusts at 19 m/s | Strong breeze from north with gusts at 19 m/s | |
| 1° | 0 to 0.3 | 13 m/s from north west with gusts at 20 m/s | Strong breeze from north west with gusts at 20 m/s | |
 | 1° | 0 to 0.2 | 13 m/s from north west with gusts at 20 m/s | Strong breeze from north west with gusts at 20 m/s | |
| 1° | 0 to 0.2 | 12 m/s from north west with gusts at 20 m/s | Strong breeze from north west with gusts at 20 m/s | |
| 1° | 0 | 13 m/s from north west with gusts at 20 m/s | Strong breeze from north west with gusts at 20 m/s | |
| 1° | 0 to 0.3 | 12 m/s from north west with gusts at 20 m/s | Strong breeze from north west with gusts at 20 m/s | |
 | 1° | 0 to 0.5 | 11 m/s from north west with gusts at 19 m/s | Strong breeze from north west with gusts at 19 m/s | |
| 1° | 0 to 0.4 | 13 m/s from north west with gusts at 20 m/s | Strong breeze from north west with gusts at 20 m/s | |
| 0° | 0 to 0.6 | 12 m/s from north west with gusts at 20 m/s | Strong breeze from north west with gusts at 20 m/s | |
| 0° | 0 to 0.5 | 12 m/s from north west with gusts at 19 m/s | Strong breeze from north west with gusts at 19 m/s | |
| 0° | 0 to 0.6 | 11 m/s from north west with gusts at 19 m/s | Strong breeze from north west with gusts at 19 m/s | |
| 0° | 0 to 0.3 | 12 m/s from north west with gusts at 18 m/s | Strong breeze from north west with gusts at 18 m/s | |
| 0° | 0 to 0.2 | 9 m/s from north west with gusts at 18 m/s | Fresh breeze from north west with gusts at 18 m/s | |
| 1° | 0 | 9 m/s from north west with gusts at 16 m/s | Fresh breeze from north west with gusts at 16 m/s | |
| 1° | 0 to 0.4 | 8 m/s from north west with gusts at 15 m/s | Fresh breeze from north west with gusts at 15 m/s | |
| 1° | 0 to 1.3 | 8 m/s from north west with gusts at 13 m/s | Fresh breeze from north west with gusts at 13 m/s |