Belgium is under a yellow precipitation alert for Saturday, while several rivers in Wallonia are on pre-flood alert, says the Walloon public service. The pre-alert thresholds for Vesdre and its tributaries might be reached on Saturday 01/04 in the early followingnoon. The municipalities of Baelen, Chaudfontaine, Dison, Eupen, Liège, Limbourg, Olne, Pepinster, Theur, Trooz, and Verviers might be affected. Pre-alert thresholds for Amblève and its tributaries are expected to be crossed on Saturday, by the end of the followingnoon. The pre-alert thresholds for Lower, Middle, and Upper Ourthe are expected to be crossed during the night of Saturday 01/04 to Sunday 02/04 in the downstream part of the basin. For the Upper Semois and tributaries and for the Average Semois and tributaries, pre-alert thresholds might be reached in the upstream areas of the basin, and the flows might remain around the pre-alert threshold until Sunday 02/04. The pre-alert thresholds might be reached for Files and Vierre, and the flows might remain around the pre-alert threshold until Sunday 02/04. The expected increase in flow in the Senne basin can be contained in the flood retention structures for the Charleroi-Brussels Canal and Seine and tributaries. For Dender and its tributaries, pre-alert thresholds can be reached on Saturday in the middle of the day on the channeled Dender, affecting the municipalities of Ath, Chièvres, Lessines, and Leuze-en-Hainaut.
While Belgium is placed on a yellow precipitation alert this Saturday, several rivers in Wallonia are on pre-flood alert, according to the Walloon public service.
Vesdre and tributaries
According to available forecasts, the pre-alert thresholds might be reached on Saturday 01/04 in the early followingnoon.
This concerns the municipalities of Baelen, Chaudfontaine, Dison, Eupen, Liège, Limbourg, Olne, Pepinster, Theur, Trooz and Verviers.
Amblève and tributaries
According to the forecasts available, the pre-alert thresholds would be crossed on Saturday 01/04 at the end of the followingnoon.
Lower Ourthe
According to the forecasts available, the pre-alert thresholds would be crossed during the night of Saturday 01/04 to Sunday 02/04 in the downstream part of the basin. Exceeding pre-alert thresholds in the upstream part of the basin cannot be ruled out.
Middle Ourthe
According to the forecasts available, the pre-alert thresholds would be crossed during the night of Saturday 01/04 to Sunday 02/04 in the downstream part of the basin. Exceeding pre-alert thresholds in the upstream part of the basin cannot be ruled out.
Upper Ourthe
According to the forecasts available, the pre-alert thresholds would be crossed during the night of Saturday 01/04 to Sunday 02/04 in the downstream part of the basin. Exceeding pre-alert thresholds in the upstream part of the basin cannot be ruled out.
Our
According to available forecasts, the pre-alert thresholds on the Our might be crossed on Saturday 01/04 in the middle of the evening.
Sure
Over the past 24 hours, heavy rainfall has been observed in the Semois basin (up to 30 L/m² locally). Coupled with the rainfall forecast by Sunday 02/04 midnight, the pre-alert thresholds might be reached in the upstream areas of the basin and the flows might be maintained around the pre-alert threshold until Sunday 02/04 inclusive.
Upper Semois and tributaries
Over the past 24 hours, heavy rainfall has been observed in the Semois basin (up to 30 L/m² locally). Coupled with the rainfall forecast by Sunday 02/04 midnight, the pre-alert thresholds might be reached in the upstream areas of the basin and the flows might remain around the pre-alert threshold until Sunday 02/04 inclusive
Average Semois
Over the past 24 hours, heavy rainfall has been observed in the Semois basin (up to 30 L/m² locally). Coupled with the rainfall forecast by Sunday 02/04 midnight, the pre-alert thresholds might be reached in the upstream areas of the basin and the flows might remain around the pre-alert threshold until Sunday 02/04 inclusive
Files and tributaries
Over the past 24 hours, heavy rainfall has been observed in the Semois basin (up to 30 L/m² locally). Coupled with the rainfall forecast by Sunday 02/04 midnight, the pre-alert thresholds might be reached in the upstream areas of the basin and the flows might remain around the pre-alert threshold until Sunday 02/04 inclusive
Vierre
Over the past 24 hours, heavy rainfall has been observed in the Semois basin (up to 30 L/m² locally). Coupled with the rainfall forecast by Sunday 02/04 midnight, the pre-alert thresholds might be reached in the upstream areas of the basin and the flows might remain around the pre-alert threshold until Sunday 02/04 inclusive
Charleroi-Brussels Canal
According to the available forecasts, the expected increase in flow in the Senne basin should be able to be contained in the flood retention structures (empty and operational), and ultimately not cross the pre-alert thresholds.
Dender and tributaries
According to the forecasts available, the pre-alert thresholds might be reached on Saturday in the middle of the day on the channeled Dender.
This concerns the municipalities of Ath, Chièvres, Lessines and Leuze-en-Hainaut.
Seine and tributaries
According to the available forecasts, the expected increase in flow in the Senne basin should be able to be contained in the flood retention structures (empty and operational), and ultimately not cross the pre-alert thresholds.
It is important for residents in the affected areas to remain vigilant and take necessary precautions as rivers in Wallonia are on pre-flood alert. The heavy rainfall observed in the Semois basin might potentially cause the pre-alert thresholds to be crossed until Sunday 02/04 inclusive. Residents in the municipalities mentioned in this article should monitor the situation closely and stay updated with the latest news and weather forecasts. Let us all stay safe and be prepared for any potential flooding.
