Bomb Cyclone Slams US Northwest and Western Canada: High Winds, Flooding, and Snow Affect Millions

A powerful storm, fueled by a "bomb cyclone," is battering the US Northwest and parts of western Canada, bringing dangerous winds, heavy rainfall, and snow to over seven million people along the Pacific Coast.

The storm has caused extensive power outages, downed trees, and widespread damage. Tragically, at least two lives have been lost in the Seattle area due to falling trees. In one incident, a woman in Kirkland was killed when a tree crashed into her home while she was showering. Another woman lost her life in a homeless encampment in Lynwood when a tree fell on her shelter.

Widespread Impact Across the Region
As the storm continues, emergency crews have responded to numerous incidents, including rescuing two people trapped in a trailer home south of Seattle after a tree fell on it. In total, over 700,000 homes and businesses in Washington state lost power at the peak of the storm, with that number later reduced to 500,000. Northern California and British Columbia also faced significant power outages, with gusts reaching up to 100 mph (160 km/h) off Vancouver Island's coast.

In Washington, schools were closed on Wednesday as streets were blanketed with storm debris. Residents were urged to stay indoors, avoid windows, and seek safety on the lowest floors of their homes.

Severe Weather to Persist
The US Weather Prediction Center has issued warnings for flash flooding and mudslides in northern California, where rainfall could reach up to 8 inches (20 cm) in the San Francisco Bay Area. Blizzards have already hit the Cascade Mountains, while heavy rain and snowmelt are expected to exacerbate flooding in areas from northern California to Oregon.

British Columbia is also grappling with strong winds and significant outages, as authorities work to restore power and ensure safety.

The Science Behind the Storm
This storm has been intensified by a "bomb cyclone," a weather phenomenon that occurs when atmospheric pressure drops by at least 24 millibars within 24 hours, creating an explosive and rapidly intensifying system. It has been further fueled by an "atmospheric river," a concentrated stream of moisture flowing from the Pacific.

Such events, though not uncommon during this season, have been particularly severe this year, with the combined effects of the atmospheric river and bomb cyclone resulting in a devastating weather event.

As conditions remain hazardous through the week, authorities continue to monitor the situation closely and urge residents to take precautions against flooding, landslides, and further damage.