Current Alerts in US and BC
As of December 15, 2025, flash flood warnings persist in King County, Washington, following the Green River levee breach. This has unleashed dangerous floodwaters, with officials warning of life-threatening conditions. The impacts have crossed borders, flooding BC's Fraser Valley from overflow in Washington state.
Hundreds of residents in West Coast communities are under evacuation orders. Major highways into BC's interior remain closed, isolating areas and disrupting travel. Farms are underwater, highlighting vulnerabilities in flood-prone regions battered by atmospheric rivers.
Environment Canada has issued special weather statements for additional heavy rain overnight into December 15, potentially adding 30-60mm in vulnerable zones. Western Washington also faces landslide warnings amid the deluge.
Forecast and Ongoing Impacts
Another atmospheric river is forecast to strike on December 15, exacerbating flash flood risks. Models predict significant rainfall, raising concerns for further inundation in already saturated areas. Authorities urge avoiding flood zones and coastal regions.
Evacuations continue in preparation for this system, with communities on high alert. The chaos has led to road closures and unpredictability, straining emergency responses. More rain could prolong recovery efforts across the region.
These events reflect broader patterns, with La Niña conditions expected to bring above-average rainfall into early 2026, per regional forecasts.
Global Flood Awareness and Tools
Beyond the US and Canada, systems like the Global Flood Awareness System (GloFAS) and FFGS provide real-time streamflow predictions and guidance, covering over 72 countries. These tools support emergency responses to flash floods worldwide.
In 2025, severe flooding has struck places like Sri Lanka after Cyclone Ditwah, underscoring the need for advanced early warning systems. FFGS includes modules for landslides and urban flooding, training over 1,000 experts globally.
Trackers such as live flash flood warning maps offer real-time alerts, helping mitigate impacts from these sudden, deadly events.