National Weather Service United States Department of Commerce

On This Day In

                   Weather History...

April 20th

Local and Regional Events:

April 20, 1966:

Canadian high pressure brought very cold air to the Rockies and northern Plains. Record lows included: 3 below in Scottsbluff, Nebraska, two below in Cheyenne and Casper, Wyoming, two above in Rapid City, 11 above in Fargo, Williston, and Aberdeen, and 15 in Huron.

 

April 20, 2007:

Severe thunderstorms moved through parts of central and northeast South Dakota during the afternoon and evening hours, producing large hail. The biggest hail measured 1.75 inches in diameter and fell 3 miles east of Westport, in Brown County.

Local Climate Information:

Click HERE for daily climate information for Aberdeen, Mobridge, Pierre, Sisseton, and Watertown.

Click HERE for daily climate information for Sioux Falls, Huron, Mitchell, and Sioux City.

 

U.S.A and Global Events for April 20th:

1912: A tornado moved north-northeast from 5 miles southeast of Rush Center, KS across the east half of Bison, KS. Farms were wiped out near Rush Center. The loss at Bison was $70,000 as half of the town, about 50 homes, were damaged or destroyed. There were 15 injuries in town. A dozen farms were nearly wiped out. Debris from the farm houses was carried for 8 miles. An elderly man who made light of the storm was killed with his granddaughter on a farm 2 miles southwest of Bison.

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Bison, Kansas following the tornado. Image courtesy of GenDisasters.com

 

1920: Tornadoes in Mississippi and Alabama killed 219 persons. Six tornadoes of F4 intensity were reported. Aberdeen, Mississippi was hard hit by an F4 tornado that killed 22 people. This same tornado killed 20 in Marion County, Alabama. Nine people in one family died in Winston County, Alabama. 

 

1984: A temperature of 106 degrees at Del Rio, Texas set a new record high for the month of April.

 

2004: A strong F3 tornado moved across the town of Utica, near LaSalle-Peru in north central Illinois. This tornado destroyed several homes, a machinery building, and a tavern. The roof of the tavern collapsed, killing eight people inside; many of these people had come into town from nearby mobile homes, seeking sturdier shelter. The tornado dissipated on a steep bluff on the northeast side of the city. Another tornado developed shortly afterward, crossing I-80 near Ottawa. Several other tornadoes developed across north central and northeast Illinois, affecting areas around Joliet and Kankakee.

 

Click HERE for more This Day in Weather History from the Southeast Regional Climate Center.