21.34 in (542 mm) of rain in Monterey County, California
Fatalities
2
Damage
$8.861 million (2009 USD)[4][5][6]
Areas affected
Southeast Alaska, Western Canada, Eastern Canada, Contiguous United States, Northern Mexico
Part of the 2009–10 North American winter storms
The October 2009 North American storm complex was a powerful extratropical cyclone that was associated with the remnants of Typhoon Melor, which brought extreme amounts of rainfall to California. The system started out as a weak area of low pressure (an Aleutian Low), that formed in the northern Gulf of Alaska on October 7. Late on October 11, the system quickly absorbed Melor's remnant moisture, which resulted in the system strengthening significantly offshore, before moving southeastward to impact the West Coast of the United States, beginning very early on October 13.[7] Around the same time, an atmospheric river opened up (the Pineapple Express), channeling large amounts of moisture into the storm, resulting in heavy rainfall across California and other parts of the Western United States. The storm caused at least $8.861 million (2009 USD) in damages across the West Coast of the United States.[4][6][5]
^"WPC Surface Analysis Archive".
^"WPC Surface Analysis Archive".
^"WPC Surface Analysis Archive".
^ abStorm Events Database: California: 73 events were reported between 10/12/2009 and 10/15/2009 (4 days). ncdc.noaa.gov (Report). NCEI. October 2009. Retrieved October 27, 2021.
^ abStorm Events Database: Washington: 1 events were reported between 10/12/2009 and 10/15/2009 (4 days). ncdc.noaa.gov (Report). NCEI. October 2009. Retrieved October 27, 2021.
^ abStorm Events Database: Oregon: 4 events were reported between 10/12/2009 and 10/15/2009 (4 days). ncdc.noaa.gov (Report). NCEI. October 2009. Retrieved October 27, 2021.
^"WPC Surface Analysis Archive".
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