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A historic “bomb cyclone” has caused multiple deaths and mass power outages after slamming into Seattle, Washington, as it charts a destructive path through California and Oregon.
A powerful extratropical cyclone developed c. November 18, 2024, in the Northeast Pacific and struck the Western United States and Western Canada. [10] [11] The storm underwent bombogenesis, rapidly dropping its central pressure [12] to a record-tying level of 942 millibars (27.8 inHg). [10]
An atmospheric river is a firehose of moisture that, when tapped by a storm like the bomb cyclone, often deluges those in its path with torrential rain, sometimes lasting for days.
At least two people have died and hundreds of thousands are without power as a second powerful bomb cyclone approaches the Pacific Northwest and Northern California, causing high winds, heavy rain ...
When the central pressure crashes 0.71 of an inch of mercury (24 millibars) in 24 hours or less, like this storm is projected to do, bombogenesis will occur and a bomb cyclone will be born.
The bomb cyclone had a minimum central pressure of 942 millibars (27.8 inHg) at its peak, making it the most powerful cyclone recorded in the Northeast Pacific. [2] The system had severe impacts across Western North America, before dissipating on October 26. The storm shattered multiple pressure records across parts of the Pacific Northwest ...
In most regions, if the atmospheric pressure drops at least 24 millibars within 24 hours, it is considered a bomb cyclone. Bomb cyclones can occur when a cold air mass collides with a warm air ...
A storm, or cyclone, is essentially a giant spinning vacuum in the atmosphere. When a storm's central pressure drops 0.71 of an inch of mercury inches (24 millibars) or more in 24 hours or less ...