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Glaciers remain year-round on some Cascade peaks higher than 7,000 feet (2,100 m) above sea level. [3] Annual snowfall along the coastal plain averages 1 to 3 inches (2.5 to 7.6 cm) a year, including years with none. Further inland, between the Coast Range and the Cascades, snowfall generally averages from 5 to 10 inches (13 to 25 cm) a year.
Lake Helen at Mount Lassen [10] and Kalmia Lake in the Trinity Alps are estimated to receive 600-700 inches of snow per year. Tamarack in Calaveras County holds the record for the deepest snowfall on earth (884 inches (2,250 cm)). 5. Alaska: Valdez: 314.1 inches (798 cm) 95 feet (29 m)
The January 2012 Pacific Northwest snowstorm was a large extratropical cyclone that brought record snowfall to the Pacific Northwest in January 2012. [1] The storm produced very large snowfall totals, reaching up to 50 inches (1,300 mm) in Oregon. [2] A 110 mph (180 km/h) wind gust was reported at Otter Rock, Oregon. [3]
For example, the forecast on March 1 warned of snowfall for parts of Phoenix, which Feldkircher said is “super unusual” for this time of year. And last week, Portland saw abnormally high ...
The regional snowfall index (RSI) is a system used by NOAA to assess the societal impact of winter storms in the United States. The system is a replacement for the Northeast snowfall impact scale (NESIS) system. Since its initiation, the NCDC has retroactively assigned RSI values to over 500 historical storms since 1900.
The snowstorm unloaded 10.8 inches of snow across the city on Wednesday, making Feb. 22 the second-snowiest day in Portland history, only behind the 14.4 inches that fell on Jan. 21, 1943.
The U.S. record is 12 inches in a single hour. That happened in a lake-effect snow band east of Lake Ontario in Copenhagen, New York, on Dec. 2, 1966, according to a list of record snowfall rates ...
This was the largest two-day snowfall recorded in Seattle since 1972. [49] The Portland metro area was hit very hard by the storm, which brought a mix of snow and ice to the region. [48] 9.4 inches (24 cm) of snow fell at Portland International Airport on February 12–13, the most snow to fall over this city in a two-day period since 1968. [49]