
A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >
Aberdeen, SD
Weather Forecast Office
Weather History - May 20th
May 20th, 1965:
A tornado hit north of Frederick. On one farm, a barn and all outbuildings were destroyed, and windows exploded outward at the house. The tornado was estimated to have been on the ground for about 5 miles.
May 20th, 1974:
Softball-sized hail fell in Kennebec, Lyman County, breaking many windows in schools and other buildings.
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Aberdeen, SD
824 391st Ave S.
Aberdeen, SD 57401-9311
605-225-0519
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