Portal:Weather/On this day list/April

1960: TIROS-1, considered to be the first successful weather satellite, is launched.

1974: The Super Outbreak, the most severe tornado outbreak in world history, spawned 148 tornadoes, including 30 violent tornadoes, in the east-central United States and Windsor, Ontario, Canada. More than 300 people were killed, and $3.5 billion (2005 USD) in damage was reported.

1936: A violent tornado struck the town of Tupelo, Mississippi, killing more than 200 people. Another tornado from the same outbreak killed another 200 people in Gainesville, Georgia the next day.

1972: An unusual tornado tracked from Oregon to Washington, killing 6 people.

1947: A tornado or series of tornadoes plowed through several towns in Texas, Oklahoma, and Kansas, killing 181 people.

1991: The Angola Cyclone, the first tropical cyclone ever observed over the southern Atlantic Ocean, formed just off the coast of Angola.

1979: An extensive tornado outbreak devastated the area around Wichita Falls, Texas, killing 56 people.

1965: The Palm Sunday tornado outbreak, one of the worst in history, produced 78 tornadoes and killed almost 300 people in the American Midwest.

1965: A tornado devastates areas of southern Chicago.

1997: The 1997 Red River Flood peaks in Grand Forks, North Dakota, when the Red River crested at 54.35 feet (16.6 m). Dikes were only built to 49 feet or lower, so catastrophic flooding resulted.

1989: The deadliest tornado in world history destroyed areas of the Manikganj District, Bangladesh. More than 1300 people were killed, and over 80,000 people were left homeless.