From Monday afternoon to late Tuesday evening heavy rain showers is expected, first in southern parts. There will be large local variations in intensity and duration, and the weather conditions can change rapidly.
Area
Applies to Oestafjells.
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. The need for emergency preparedness shall be assessed continuously by emergency response actors. 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, 26 July 12:00 - ongoing danger
Monday afternoon a lot of lightning and thunder is observed along the coast of Agder. It is expected that the risk of thunder will spread to the areas around Oslofjorden and to inner the areas. The risk of thunder is expected to last until Tuesday evening. There will be large lokale differences in intensity and some places will probably not experience thunder.
Area
Applies to Oestfold, Akershus, Oslo, Buskerud, Vestfold, Telemark, Aust-Agder, Vest-Agder and Rogaland.
Instructions
Stay up to date on the development of the weather and the weather forecast. Monitor the weather radar or lyn.met.no. Assess the need for preventive measures. Disconnect electrical appliances. Seek shelter. Avoid open plains and large trees. Do not swim or bathe.
Consequences
Thunderstorms can lead to locally strong wind gusts. 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
- Monday, 26 July 16:00 - ongoing danger
- Wednesday, 28 July 00:00 - danger is over
| Time | Weather | Temp. | Precip. mm | Wind(gust) m/s | Wind desc. |
|---|---|---|---|---|---|
heavy rain | Temperature18° | 0 to 4.2 | 1 m/s from east with gusts at 3 m/s | Light air from east with gusts at 3 m/s | |
heavy rain | Temperature18° | 0 to 2.5 | 4 m/s from east with gusts at 11 m/s | Gentle breeze from east with gusts at 11 m/s | |
heavy rain | Temperature17° | 0 to 3.6 | 2 m/s from north east with gusts at 10 m/s | Light breeze from north east with gusts at 10 m/s | |
heavy rain | Temperature17° | 0 to 4.8 | 1 m/s from south east with gusts at 4 m/s | Light air from south east with gusts at 4 m/s | |
rain | Temperature17° | 0 to 2.7 | 3 m/s from east with gusts at 7 m/s | Light breeze from east with gusts at 7 m/s | |
cloudy | Temperature17° | 0 to 2.8 | 2 m/s from north east with gusts at 7 m/s | Light breeze from north east with gusts at 7 m/s | |
cloudy | Temperature17° | 0 to 1.2 | 1 m/s from north west with gusts at 5 m/s | Light air from north west with gusts at 5 m/s | |
cloudy | Temperature18° | 0 to 1.7 | 2 m/s from north east with gusts at 6 m/s | Light breeze from north east with gusts at 6 m/s | |
heavy rain | Temperature18° | 0 to 2.3 | 2 m/s from north east with gusts at 6 m/s | Light breeze from north east with gusts at 6 m/s | |
heavy rain | Temperature18° | 0 to 4 | 2 m/s from east with gusts at 6 m/s | Light breeze from east with gusts at 6 m/s | |
light rain | Temperature18° | 0 to 3.2 | 2 m/s from north east with gusts at 7 m/s | Light breeze from north east with gusts at 7 m/s | |
light rain | Temperature19° | 0 to 0.9 | 2 m/s from north east with gusts at 6 m/s | Light breeze from north east with gusts at 6 m/s | |
cloudy | Temperature19° | 0 to 1.4 | 3 m/s from east with gusts at 7 m/s | Light breeze from east with gusts at 7 m/s | |
cloudy | Temperature19° | 0 to 2.8 | 3 m/s from east with gusts at 7 m/s | Light breeze from east with gusts at 7 m/s | |
cloudy | Temperature19° | 0 to 0.9 | 2 m/s from east with gusts at 8 m/s | Light breeze from east with gusts at 8 m/s | |
cloudy | Temperature19° | 0 to 1 | 2 m/s from east with gusts at 6 m/s | Light breeze from east with gusts at 6 m/s | |
cloudy | Temperature19° | 0 to 1 | 2 m/s from east with gusts at 5 m/s | Light breeze from east with gusts at 5 m/s | |
cloudy | Temperature19° | 0 to 1.3 | 2 m/s from east with gusts at 5 m/s | Light breeze from east with gusts at 5 m/s | |
cloudy | Temperature19° | 0 to 1.3 | 2 m/s from east with gusts at 5 m/s | Light breeze from east with gusts at 5 m/s | |
cloudy | Temperature19° | 0 to 2.6 | 1 m/s from east with gusts at 5 m/s | Light air from east with gusts at 5 m/s | |
cloudy | Temperature20° | 0 to 3 | 1 m/s from east with gusts at 4 m/s | Light air from east with gusts at 4 m/s | |
partly cloudy | Temperature20° | 0 to 1.3 | 1 m/s from north east with gusts at 2 m/s | Light air from north east with gusts at 2 m/s | |
partly cloudy | Temperature19° | 0 to 1.8 | 1 m/s from north east with gusts at 2 m/s | Light air from north east with gusts at 2 m/s | |
partly cloudy | Temperature18° | 0 to 2.4 | 1 m/s from north east with gusts at 3 m/s | Light air from north east with gusts at 3 m/s |