Storm Dennis at the gates of Belgium: what to expect this weekend?

A week after the Ciara storm which prompted firefighters to intervene several hundred times throughout Belgium, strong gusts of wind are again expected on Sunday and Monday.
Will Dennis be similar to Ciara?

Like Ciara, Dennis was born in the Atlantic Ocean. Its winds are expected to hit Scotland on Saturday and reach Belgium the next day.

Some damage is possible in Belgium“said David Dehenauw, meteorologist at the IRM.”But gusts will be less violent than during the Ciara storm“, he continues.

In reality, it is not even sure yet that Dennis will develop into a storm in Belgium. For there to be a storm, the average wind speed must be between 75 and 88 km / h, which is equivalent to a force 9 on the Beaufort scale. However, the winds may not reach this speed here. “On Sunday, we will have an average wind of 5 to 6 beaufort in the interior of the country, 6 to 7 beaufort on the coast and 8 or 9 beaufort in the North Sea. If the winds do not reach 9 beaufort, it will not be not a storm in the official sense of the term “says David Dehenauw.

While it had opted for the orange code last Sunday, the Royal Meteorological Institute this time was satisfied with yellow.

If the gusts will be less intense, caution is always advised. As a precaution, the woods and forests will also be closed. But no flight should be canceled.

Weekend forecast

During the night of Saturday by Sunday, cloudiness will become very abundant in all regions. The rain will spread over the west and center of the country, then also over the eastern provinces at the end of the night. Minimum of 6 to 8 degrees in the Ardennes and 9 to 11 degrees in other regions. The south to southwest wind will be strong enough and sometimes strong. Gusts will reach 70 to 90 km / h.

Sunday, it will be mostly cloudy with a few showers first. A fairly active rain zone will then cross the country from west to east in the afternoon and evening. It will be very mild with maximums between 12 and 16 degrees. The southwest wind will strengthen to become strong and in places even very strong. Gusts may reach 70 to 90 km / h, even locally 100 km / h.

On Monday, the weather will be partly cloudy with a few showers, especially in the afternoon. Thunder and ice pellets are not excluded. Maximum from 6 to 10 degrees. The wind will be moderate to fairly strong, at times strong to the sea, from the southwest.

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