November 2024 Northeast Pacific bomb cyclone

November 2024 Northeast Pacific bomb cyclone
Picture of a bomb cyclone off the Pacific Northwest coast on the afternoon of November 19, 2024
Meteorological history
Formedc. November 18, 2024
Extratropical cyclone
Highest gusts305 km/h (190 mph)
Lowest pressure942 hPa (mbar); 27.82 inHg[1]
Maximum rainfall56.92 cm (22.41 in)
Overall effects
Fatalities≥4[2][3]
Areas affectedBritish Columbia, Washington, Oregon, California
Power outages≥953,000[4][5][6][7]

Part of the 2024–25 North American winter

A powerful extratropical cyclone developed c. November 18, 2024, in the Northeast Pacific and struck the Western United States and Western Canada.[8][9] The storm underwent bombogenesis, rapidly dropping its central pressure[10] to a record-tying level of 942 millibars (27.8 inHg).[8] This storm was the first of two bomb cyclones to impact the U.S. West Coast during a 3 day period. The storm was associated with an atmospheric river that dropped large amounts of rain in Oregon and California. The Storm Prediction Center (SPC) issued a rare high risk of excessive rainfall in parts of Northern California, warning of "life-threatening flooding".[11]

  1. ^ Asherman, Jacob (November 20, 2024). "Record-setting bomb cyclone, intense as a hurricane, to lash Northwest". WPC.{{cite web}}: CS1 maint: url-status (link)
  2. ^ "'Bomb cyclone' kills at least 2 and knocks out power in Pacific Northwest". Associated Press. November 20, 2024. Archived from the original on November 20, 2024. Retrieved November 21, 2024.
  3. ^ Gaines, Tori (November 23, 2024). "Sonoma County: Two people die in floodwaters during atmospheric river conditions". KTVU FOX 2. Retrieved November 23, 2024.
  4. ^ "Storm Unleashes Heavy Rain in Washington State, Leaving Nearly 600,000 Without Power". New York Times. November 20, 2024. Archived from the original on November 20, 2024. Retrieved November 20, 2024.
  5. ^ Cite error: The named reference KOIN was invoked but never defined (see the help page).
  6. ^ Brockman, Charles (November 19, 2024). "Over 200,000 BC Hydro customers without power as 'bomb cyclone' winds hit". CityNews Vancouver. Retrieved November 20, 2024.
  7. ^ Ortiz, John Bacon and Jorge L. "Pacific Northwest reeling from bomb cyclone; atmospheric river targets California". USA TODAY. Retrieved November 21, 2024.
  8. ^ a b Noll, Ben (November 19, 2024). "Record-setting bomb cyclone, intense as a hurricane, to lash Northwest". The Washington Post. Archived from the original on November 19, 2024. Retrieved November 19, 2024.
  9. ^ Cliff Mass (November 18, 2024). "The Deepest Low Pressure Center in Northwest History? Damaging Winds West of the Cascades". Cliff Mass weather blog.
  10. ^ "Bomb cyclone meets atmospheric river: When will it hit the Bay Area?". KRON4. November 19, 2024. Retrieved November 20, 2024.
  11. ^ Gilbert, Karina Tsui, Robert Shackelford, Mary (November 21, 2024). "Northern California faces possible record-breaking rainfall from atmospheric river and another storm is coming". CNN. Retrieved November 21, 2024.{{cite web}}: CS1 maint: multiple names: authors list (link)