– Adjust your speed according to the conditions if you are going out for a drive, says meteorologist on duty Håkon Mjelstad at the Meteorological Institute. The Norwegian Meteorological Institute has issued a yellow warning for torrential rain for the eastern parts of Eastern Norway from Wednesday afternoon. The most rainfall is expected in the areas near the Swedish border, from Femunden in the north to Askim in the south. Some areas can receive more than 20 millimeters of rain in one hour. – There may be intense rain showers locally. If you take the 20 millimeters throughout the day, it is considered moderate rain. 20 millimeters in one hour is torrential rain, says Mjelstad. There will be more extreme rainfall than before Man-made climate change is causing more frequent and more severe extreme weather. The extreme rainfall is increasing globally, and especially in Norway and Northern Europe. It comes more often and in larger quantities, and this will continue if global warming increases further. Torrential rain, i.e. large amounts of rainfall that come in a short time, is an example of extreme rainfall in Norway that can have major economic consequences and, in the worst case, can take lives. This is because the torrential rain also increases the risk of landslides and floods. Globally, torrential rain will increase by 7% in intensity per 1˚C warming. The state is currently taking a number of measures to adapt Norway to these changes. This involves flood and avalanche protection, nature-based solutions, adaptation of areas and upgrades of waterways. Sources: UN Climate Panel, Meteorological Institute and Norwegian Climate Services Centre. There may be flooding The danger warning applies from 2pm on Wednesday. According to the meteorologist, the rain will subside between 4 and 5 p.m. But Oslo can also expect torrential rain throughout the evening. Large amounts of water can lead to local flooding, landslides and landslides, and difficult driving conditions. Gamle Østfold, Akershus and Hedmark are most at risk. – If there is too much water in the road, it becomes a challenge. Therefore, people have to adapt their speed. You can run the risk of aquaplaning. Particularly in cities, short-term intense rainfall can cause it to overflow into streets, says Mjelstad. Heavy rain showers are expected in Eastern Norway. The area along the Swedish border receives the most precipitation, according to the Meteorological Institute. Photo: The meteorologists The fire service is aware of the danger warning that has been sent out. They are prepared to deploy additional staff, and ask people to batten down the hatches. – It is a good idea to clean the drains and drains around the house and in the road. Then the water will hopefully flow through the right way. Those who are used to this should have a pump lying around. If the water is already on its way into a cellar, then there is not much we can do before it stops, says Harald Mogen, on duty at the 110 switchboard. Short-term precipitation However, the precipitation will be short-lived. Already on Thursday, there will be fewer clouds with glimpses of blue sky, and a temperature of just over 20 degrees. But on Sunday, more rain is expected again, which will follow the following week. Summer weather seems to return at the turn of the month. – We have had a better July than this, but there will be a lot of blue sky between the showers. On Friday, there will be less chance of thunderstorms. The same applies to Saturday. But the temperature won’t be that high, as long as we don’t let the sun out. Satellite image over Norway on Tuesday shows great contrasts. Little or no clouds north of Bodø. Photo: Meteorological Institute Northern Norway is a weather winner In Northern Norway, there has been little rainfall for a long period. Now high temperatures are also expected. The meteorologists have therefore issued a forest fire warning in large parts of the country. – There will be some rural weather towards the weekend south of Bodø. It has been very dry there, but the unstable weather looks set to head north from the weekend. In order to limit the risk of forest fires, there must be a fair amount of rainfall, says Mjelstad. In June, there were several forest fires and the risk of forest fires in large parts of Eastern Norway. But the meteorologist reassures that the danger is now only for a long time.
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Warning for torrential rain in Eastern Norway – news Oslo and Viken – Local news, TV and radio
