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Inclement Weather in the Northwest; Elevated Fire Weather Conditions in the High Plains

In the Pacific Northwest into northern California, areas of heavy rain for the coastal ranges and heavy snowfall over the higher elevations of the Cascades are expected into Friday. Dry and windy conditions may produce elevated fire weather conditions in the central and southern High Plains and the Upper Midwest. Windy conditions and scattered rain and snow showers will continue in the Northeast. Read More >

Overview

A complex, slow-moving upper-level disturbance brought several rounds of snowfall to eastern Wyoming and western South Dakota from early on February 15th through the day on February 17th. The most significant accumulations during the event occurred within a band of heavy snow over the northwest South Dakota plains on the 16th, which brought localized snowfall rates of over two inches per hour at times. Snowfall totals over the three days exceeded a foot in many locations over northwestern South Dakota, with a general decrease in amounts towards the southwest. Highest amounts were measured in Perkins County, where over 20" of snowfall occurred.

The amounts of snowfall and moisture with this system were impressive for this time of year. In fact, several locations broke records for daily or monthly precipitation and/or snowfall amounts during this event:

  • Rapid City Regional Airport: 0.35" liquid/5.2" snow (2/15)
  • Downtown Rapid City: 0.28" liquid/4.4" snow (2/15)
  • Buffalo, SD ASOS: 0.66" liquid (2/16, record for February)
  • Faith, SD ASOS: 0.63" liquid (2/16, record for February)

 

Photo

Meadow, SD
Courtesy of Shane Y.

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