Storm Pedro Triggers Historic Floods Along France's Garonne

A Region Under Water

Southwestern France is reeling from its most severe flooding in a generation. After 35 consecutive days of rain — the longest uninterrupted wet spell since records began — Storm Pedro made landfall in mid-February 2026, delivering a final, devastating blow to ground that was already saturated beyond its limits. The result: record river levels, mass evacuations, and a stark warning from scientists about the intensifying consequences of climate change.

Garonne Breaks Records at Marmande

The Garonne River, which winds through the heart of southwestern France, surged to a historic peak of 10.34 metres at Marmande in the Lot-et-Garonne department — a level that eclipsed previous flood records and effectively split the town in two. In Bordeaux, authorities activated local flood protection plans for the first time since 1999, as the river threatened to surpass historic levels not seen since the turn of the century.

Across the region, Euronews reported that four departments — Gironde, Lot-et-Garonne, Maine-et-Loire, and Charente-Maritime — were placed on red alert, France's highest emergency warning level. A further eleven departments faced orange alerts for flooding and storm surge.

Evacuations and Infrastructure Failures

The human toll mounted quickly. Around 1,700 people were evacuated in Lot-et-Garonne alone from February 10 onwards, as rising waters inundated homes and cut off roads. Some 5,000 households in the department lost power, while over 9,000 homes in the neighbouring Dordogne were left without access to clean drinking water. Rail services across western and southwestern France faced widespread disruption.

In Angers, authorities took the unusual step of deliberately flooding nearby roads along the Maine River to relieve pressure on more densely populated areas — a measure that underscored the desperation of emergency managers facing an unprecedented situation. Gymnasiums were converted into emergency shelters for displaced residents.

According to Connexion France, by mid-February 174 of the 330 waterways monitored by French flood authorities had exceeded flood thresholds — surpassing even the catastrophic 2021 floods that had previously set the benchmark.

Ground That Can Take No More

The scale of the flooding is partly explained by a striking meteorological statistic: France's national flood monitoring service confirmed that soil moisture across the country reached its highest level since records began in 1959, as reported by The Watchers. With the ground fully saturated, rainfall had nowhere to go — runoff flowed directly into rivers, amplifying the flood peaks far beyond what the precipitation alone would normally produce.

Storm Pedro brought sustained winds of up to 140 km/h to coastal areas and dumped a further 50 millimetres of rain across parts of the southwest, onto soil that could absorb almost nothing.

A Climate Signal

Climatologists are pointing to these events as a preview of a warming future. The combination of prolonged rainfall, saturated soils, and extreme storm systems is precisely the pattern that climate models predict will become more frequent and more intense as global temperatures rise. France has already experienced a series of damaging floods in recent years, and scientists warn that the window of opportunity to limit the worst outcomes is narrowing.

"We've been experiencing flooding for 31 days straight — this is something we've never seen before," one official told reporters, as rescue teams continued searching for missing persons and communities counted the cost of yet another record-breaking weather event.