From Monday evening heavy rain showers are expected, first in eastern parts. There will be large local variations in intensity and duration, and the weather conditions can change rapidly. Locally 15-30 mm/h.
Area
Applies to Eastern Norway and Rogaland.
Instructions
Keep yourself informed of the latest weather developments and forecasts. Follow the weather situation on the rain radar. Stay away from steep slopes as well as fast flowing streams. Cleaning of drainage systems and culverts is recommended so that the water can drain away. Adjust the speed and use caution while driving.
Consequences
Risk of storm water in urban areas, local flooding, stream bank erosion, changing waterways, shallow landslides at locations impacted by showers. Locally difficult driving conditions, especially at waterways. Roads may be closed. Road conditions affected with road spray and hydroplaning in some places.
Timeline
- Monday, 15 August 18:00 - ongoing danger
- Wednesday, 17 August 00:00 - danger is over
Tuesday there will be a risk of frequent lightning in showers. The risk of lightning will decrease Tuesday evening.
Area
Applies to Østlandet and Sørlandet.
Instructions
Stay up to date on the development of the weather and the weather forecast. Monitor the weather radar or lyn.met.no. Disconnect electrical appliances. Adjust driving speed according to the road/weather conditions. Seek shelter. Avoid open plains and large trees. Do not swim or bathe.
Consequences
Locally heavy rain showers. Danger of damage to object(s) as a result of lightning strikes. The power supply and TV / internet may be affected. Lightning strikes can cause fires in buildings or forests/vegetation.
Timeline
- Tuesday, 16 August 06:47 - ongoing danger
- Tuesday, 16 August 22:00 - danger is over
| Time | Weather | Temp. | Precip. mm | Wind(gust) m/s | Wind desc. |
|---|---|---|---|---|---|
 | 21° | 0 to 0.4 | 1 m/s from south east with gusts at 5 m/s | Light air from south east with gusts at 5 m/s | |
| 20° | 0 to 0.9 | 2 m/s from south west with gusts at 4 m/s | Light breeze from south west with gusts at 4 m/s | |
| 21° | 0 to 3.8 | 1 m/s from south east with gusts at 4 m/s | Light air from south east with gusts at 4 m/s | |
| 20° | 0 to 3.2 | 2 m/s from south east with gusts at 3 m/s | Light breeze from south east with gusts at 3 m/s | |
| 20° | 0 to 1.2 | 2 m/s from south west with gusts at 4 m/s | Light breeze from south west with gusts at 4 m/s | |
| 20° | 0 to 0.2 | 3 m/s from south west with gusts at 5 m/s | Light breeze from south west with gusts at 5 m/s | |
| 20° | 0 | 2 m/s from south with gusts at 4 m/s | Light breeze from south with gusts at 4 m/s |