The recent bomb cyclone that hit the Pacific Northwest has caused widespread damage, with wind gusts reaching up to 101 mph off the coast. Over 700,000 homes and businesses have lost power, and sadly, two fatalities have been reported. Understanding what a bomb cyclone is can help us prepare for future severe weather events.
A bomb cyclone is a powerful storm that undergoes rapid intensification, known as bombogenesis, leading to a significant drop in atmospheric pressure. These storms can bring heavy rain, snow, and high winds, causing disruption and damage. They are more common in the winter months and can be particularly dangerous along coastlines or in areas prone to winter storms.
In the Pacific Northwest, late fall and winter often bring increased storm activity as the jet stream shifts southward. This can bring a series of low-pressure systems and potential bomb cyclones to the region. The area is also susceptible to atmospheric rivers, which are concentrated moisture corridors in the atmosphere. When these rivers align with a bomb cyclone, they can result in heavy rain and flooding, especially in western Washington and Oregon.
Looking ahead, the weather forecast for the region predicts continued extreme rainfall from the atmospheric river currently affecting California. The northern California coast and inland mountain ranges could see significant rainfall totals, increasing the risk of flash floods, rockslides, and debris flows. Additionally, another storm is expected to form off the Northwest coast on Friday, further enhancing the atmospheric river effect and posing a threat of life-threatening flooding.
It is essential for residents in the Pacific Northwest to stay informed about weather updates and be prepared for severe weather events. Understanding the formation and impact of bomb cyclones can help communities better respond to and mitigate the effects of these intense storms. Stay safe and stay informed during severe weather conditions to ensure the well-being of yourself and your loved ones.