Ringerike Leaf – As a result, Yr and Storm may have completely different weather forecasts



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Anyone who is curious about how the weather behaves and carefully checks both Yr and Storm may end up being mostly confused.

Why are the two weather stations so uncomfortable about the weather that it does?

– I We all talk about using different meteorological models, explains the meteorologist Ragnhild Nordhagen at the Meteorological Institute, and we develop:

– At the Meteorological Institute, we use three different models. One of them covers the North and has a high resolution, so we receive a detailed alert with local effects. The other is a global model that covers the whole world, where we can see the long-term weather for the next ten days. Thirdly, we go through a European collaboration, where a computer outside Reading England produces the notifications for us.

User Point Alerts

A weather model relies on two things: observations of temperature, wind, precipitation, and the like. mathematical formulas that can be calculated over time.

– Formulas are based on knowing how low and high pressures move, what affects them and how they will evolve over time. The meteorological observations give us a starting state, then the equations and the formulas calculate how time will be ahead, explains Nordhagen.

– But how can the messages be so different that we report the bright sun and the other the rain and the lightning? ] – At the Meteorological Institute, we use one-time alerts, which allows us to report relatively locally. Nordhagen says, "While a weather model with a lower resolution than that of the Meteorological Institute, shows that there is rainfall in the eastern region, the point of Warning may reveal that it is exactly the same thing. in the capital will stay.

– On Yr.no or via the Yr app, you can check the precipitation radar to find out if there is rainfall in the area. In addition, you can read text alerts for more detailed information, Nordhagen

Best Resolution

Storm meteorologist Storm Teigen agrees with Nordhagen that the explanation is that both weather stations are using different meteorological models.


– This is the type of model and how we process the model data before posting the notification on Storm or Yr. I think the Meteorological Institute uses a better resolution model, while we like to assume that buildings are crossing larger areas, the Meteorological Institute can notify more locally, "says Teigen.

– If the model of the Meteorological Institute has a better resolution. usually have the most accurate weather forecast then?

– Not necessarily. It is not always that better resolution gives better results. In the case of city rifles, it will be difficult to get it right, so it would be better to suggest that there will be more locations, says Teigen.

– Uses both

But what weather station is it hitting? better with their alerts?

In 2013, Yr and Storm were given the task of TV 2 to help you collect weather forecasts for a whole year. A total of 32,850 weather forecasts were compared, and Yr was found the best in temperature, rain and wind, while Storm was best seen on cloud cover

This study was done five years ago and Nordhagen and Teigen will not say anything. which weather stations is most affected today?

– I do not think there is such a big difference in quality. My advice to people is to use both. If we are completely in agreement on the weather, there is more chance that we touch. If we disagree, it may be a sign that the weather situation is uncertain and you should consider it, "says Teigen

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