Garonne River Flood Alert: Red Vigilance for La Réole, France

Authorities are closely monitoring rising water levels along the Garonne River in the Gironde region of France, with a red alert maintained for the sector near La Réole. Current conditions suggest potential flooding comparable to levels seen in 2019, when the river reached a maximum height of 8.87 meters.

Rising River Levels Prompt Vigilance

As of Thursday evening, the Garonne at La Réole measured 8.46 meters. Forecasts from Vigicrues indicate the river could reach 8.80 meters by early Friday evening. The situation is influenced by both local rainfall and water flowing from the Garonne marmandaise, which itself is affected by rivers originating in the Aveyron, Lot and Pyrenees regions.

Did You Know? In 2019, the Garonne River near La Réole reached a maximum height of 8.87 meters.

Officials anticipate a “plateau” in water levels on Friday, potentially lasting for an extended period, with a possible rise again during the night of Saturday to Sunday.

Maintaining Alert Levels

Predictions are based on 24-hour weather forecasts, considered reliable for that timeframe but less so beyond. Authorities are hesitant to lower the alert level, even with the anticipated plateau, to avoid a potential return to red alert. According to Olivier Duthille-Pairault, chef du service des risques naturels et hydrauliques de la Dreal, avoiding a “yo-yo” effect is crucial for effective crisis management.

Expert Insight: Maintaining a high alert level, even with a predicted plateau, demonstrates a proactive approach to risk management. Avoiding fluctuations in alert status is essential to ensure public trust and compliance with safety measures during a potentially dangerous situation.

The Libournais area is also under scrutiny, with a noted “risk of significant overflows” on the lower Dordogne River between Pessac-sur-Dordogne and Libourne. This section is currently under an orange vigilance alert.

Local mayors have activated their communal safeguard plans, opening or identifying locations to accommodate potential evacuees. The departmental operational centre (COD) has also been activated to coordinate the response.

Frequently Asked Questions

What is the current alert level for La Réole?

The sector of the Garonne River near La Réole is currently under a red alert due to anticipated flooding.

What areas, besides La Réole, are being monitored?

The Libournais area, specifically the lower Dordogne River between Pessac-sur-Dordogne and Libourne, is also being closely monitored and is under an orange vigilance alert.

What actions have local authorities taken?

Mayors of concerned communes have activated their communal safeguard plans, and the departmental operational centre (COD) has been activated.

How might communities prepare for potential fluctuations in river levels over the coming weekend?