National Weather Service United States Department of Commerce

Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Weather History - April 30th

Local and Regional Events:

April 30th, 1942:

A tornado hit three farms near the northeastern edge of Castlewood. One barn was blown apart, and debris was swept into the house, killing one person. Damage from the estimated F2 tornado was $20,000.

April 30th, 2011:

A low-pressure system moved across North Dakota and brought high winds to much of the central parts of northeast South Dakota. Northwest winds of 35 to 50 mph with gusts over 60 mph occurred from the morning to the late evening of the 30th. The high winds did cause some property damage across the region. A semi was tipped over on Highway 50 in Buffalo County; a large sign was brought down in Highmore, with some damage to security lights and twisted traffic signals in Pierre. Some of the highest wind gusts included 59 mph at Eagle Butte, 61 mph at Oacoma, 66 mph in Corson County, and 69 mph at Hayes in Stanley County.