The U.S. Weather Bureau records that a tornado which struck Timber Lake, South Dakota was 4 miles (6.4 km), among the widest tornadoes on record.

National Weather Service

U.S. forecasting agency of the National Oceanic and Atmospheric Administration

The National Weather Service (NWS) is an agency of the United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weather-related products to organizations and the public for the purposes of protection, safety, and…

List of United States tornadoes in 1946

This page documents all the known tornadoes that touched down in the United States during 1946. Tornadoes which occurred in the United States prior to 1950 are not officially rated. Tornado expert Thomas P. Grazulis rated significant tornadoes, those rated F2 or higher on the…

Timber Lake, South Dakota

City in South Dakota, United States

Timber Lake is a city in and the county seat of Dewey County, South Dakota, United States. The population was 509 at the 2020 census.

Tornado records

List of world records related to tornadoes

This article lists various tornado records. The most "extreme" tornado in recorded history was the Tri-State tornado, which spread through parts of Missouri, Illinois, and Indiana on March 18, 1925. It is considered an F5 on the Fujita Scale, holds records for longest path…

April 21

Day of the year

April 21 is the 111th day of the year in the Gregorian calendar; 254 days remain until the end of the year.