As much of France grapples with widespread and severe flooding, the Nord-Pas-de-Calais region has so far been largely spared. A combination of factors, including lower rainfall, a different weather pattern, and the capacity of the region’s soil to absorb precipitation, are contributing to this relative calm, according to meteorologist Patrick Marlière.
The situation stands in stark contrast to the flooding impacting regions in western and southwestern France, where “atmospheric rivers” have dumped significant amounts of rain. Marlière explained that the Nord-Pas-de-Calais has benefited from a different atmospheric configuration, with disturbances being deflected northward towards the British Isles and Belgium. This difference in weather patterns is key to understanding why this region remains relatively dry compared to others.
Beyond favorable weather conditions, proactive measures have also played a role in mitigating flood risk. Emergency perform, including dredging, drainage improvements, the installation of pumping stations, and the creation of temporary storage basins, have helped prevent water levels from rising in areas previously prone to flooding. These preventative measures, combined with the more favorable weather, have created a buffer against the widespread inundation seen elsewhere.
The autumn of 2025 was significantly drier than 2023 in the Hauts-de-France region, including Nord-Pas-de-Calais. This meant that groundwater levels were not saturated at the start of winter, allowing the region to absorb January’s rainfall without experiencing significant overflow. “The soils were able to absorb the rains of January without any real overflow,” Marlière stated.
Drier Conditions and Soil Absorption Key to Avoiding Flooding
The difference in rainfall between the Nord-Pas-de-Calais and other affected regions is notable. While other areas experienced heavy precipitation, the Pas-de-Calais saw a near-deficit in rainfall towards the end of 2025. As of early 2026, rainfall levels have remained near or slightly above seasonal averages. However, the Avesnois department in the Nord region has seen higher rainfall, prompting a yellow “vigilance” alert for potential flooding.
To illustrate the difference, Marlière pointed to Nielles-lès-Bléquin, an area frequently impacted by flooding. In autumn and late 2025, the area received 70 to 80 liters of water per month, significantly less than the seasonal average of 120 liters. In January and February 2026, rainfall totaled around 100 liters, compared to a staggering 350 liters in November 2023, 180 liters in December 2023, and 160 liters in February 2024 – levels that overwhelmed the region’s capacity.
Vigilance Remains as Wetter Weather Looms
Despite the current relative calm, Marlière cautioned that the situation is not entirely stable. The Nord department remains under a yellow “vigilance” alert for potential flooding. However, the region is less vulnerable to snowmelt than mountainous areas, where warmer temperatures are expected to trigger avalanches and flooding.
While some snow has fallen in higher elevations of the Avesnois, the potential impact on soil saturation is being monitored. For now, the region is not facing extreme weather events. A period of sunny and mild weather is expected this week, potentially breaking temperature records for February, but Marlière emphasized that the rainy season is not yet over. He noted that weather models indicate more rain is expected next week, though not on the scale of the recent flooding elsewhere in France.
The Department of the North is currently under a yellow alert, meaning residents should “remain attentive” to potential flooding, according to Marlière.
Looking ahead, continued vigilance is advised. While the immediate forecast offers a respite, the possibility of further rainfall means the risk of flooding remains. Residents should stay informed about weather updates and heed any warnings issued by local authorities.
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