Yle's main meteorologist Seija Paasonen's home yard appeared something unheard of.

Paasonen said on Twitter on Wednesday that a weather ball had appeared in the birch of his backyard. The radiosonde in the ensemble also hung nearby.

- A gas ball retale with its brackets hangs in the birch of the home yard, and a radiosonde itself was found a little lower on the forest slope. Has the system come down with deaf rain? the meteorologist wondered on Twitter.

A radiosonde, called a radiosonde, is an meteorological measuring device that provides weather forecast models with information about atmospheric weather conditions, such as temperature, barometric pressure, humidity, and wind direction and wind speed.

Sonars are launched into the air with a weather balloon filled with hydrogen or helium gas.

Seija Paasonen tells Ilta-Sanomat that the cabinet met him on Wednesday night in his backyard in Tuusula.

- The radiosonde hung on the line while bringing. Higher up the slope in the birch was the head of the ball. All that was left of the exploding gas ball was the part to which the ball is attached, as well as the retalls of the long ball.

The stages of reaching the tree and the sight of the ball are a mystery.

- That may have appeared there earlier in the tree. Yesterday there were snowstorms and strong gusts, so maybe they would have detached it up to a height where I could see it, he wonders.

For the meteorologist, the discovery suggesting his own work was a funny surprise.

- I was right that this kind of May Day ball was right here in traffic.

- Yes, it had that nice tone. When you work in relation to the atmosphere, and then comes against such a very concrete object that has helped in the work and measured the data through the atmosphere. So now that bastard is in it. It almost felt like such a partner.

The images published by Paasonen on Twitter show the Finnish Meteorological Institute's logo with contact information and a serial number.

Ilta-Sanomat asked the Finnish Meteorological Institute where and when the cabinet had left.

Juhana Hyrkkänen, Head of the Observatory Services Unit at the Finnish Meteorological Institute, says that weather globes found in the terrain are reported somewhat rarely.

- We are only given one to three reports a year about the weather probes found.

- Yes, that's a funny coincidence in that if you drop something, it's Seija Paasonen's yard.

The Finnish Meteorological Institute sends radio sonars into the air from Jokioinen and Sodankylä.

Hyrkkänen says that he checked that based on the serial number tweeted by Paasonen, the device in question had left Jokioinen.

- Weather balls usually drop about a hundred kilometers from the sounding point, that quite a few of them come here from congested Finland to Jokioinen. The ball can travel 100-200 kilometers from the place of dispatch, which means that it is possible for the ball to come from Jokioinen to the Helsinki metropolitan area.

Hyrkkänen says that based on the serial number, the sounding of the device found by Paasonen would have been done on April 16. It is not known how the device ended up in Paasonen's yard tree and was only found now.

- Eli 16.4. we have sent the ball into the air from Jokioinen. The balls typically come down in hours. It may be that that ball has been in the tree since mid-April, and then a gust of wind or the like has dropped it lower.

- Unless that's a techie, he adds.

Jokioinen balls are currently sent into the air four times a day, Hyrkkänen says.

- In Sodankylä, too, we have increased the frequency from two to four times a day, because the weather observations made by aircraft have decreased due to an accident.

According to Hyrkkänen, the radiosonde has been found to be harmless.

- It is worthless in the sense that it is disposable. Most of the device can be disposed of with normal waste, but it has batteries that should then be recycled at battery collection points.

The Finnish Meteorological Institute's website states that a gas balloon can travel 100 to 200 kilometers from its dispatch point, usually to the west or north.

In this way, sounding balls can also be drifted into Finland from Sweden or the Baltic countries. The ball breaks at an altitude of 20-30 kilometers and then falls to the ground with its detection devices.