Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

The National Weather Service completed a service assessment for flooding along the Missouri and Souris Rivers that occurred from May through August 2011. The final report of this assessment may be read at:

http://www.weather.gov/media/publications/assessments/Missouri_floods11.pdf

Service assessments are internal reviews of the National Weather Service’s performance during certain Hydrometeorological, oceanographic, and geological events. They identify best practices and areas for product and service improvements in the form of findings and recommendations.

Additional information regarding this and other floods across South Dakota from 1881 to 2019 can be found here, courtesy of the U.S. Corps of Engineers (alternatively here, via the South Dakota State Historical Society).

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Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

NWS Completes Internal Assessment for 2011 Missouri River Flooding