In April 2020, various weather forecast offices of the National Weather Service confirmed 267 tornadoes in the United States, indicating significantly above-average activity for the month. Based on the 1991âÂÂ2010 averaging period, 155 tornadoes occur across the country during April. While the first three months of a year commonly feature tornadic activity across the Southeastern United States in close proximity to the Gulf of Mexico, this risk area expands to include the U.S. Midwest and U.S. Southern Great Plains in April, maximized in the states of Texas and Oklahoma. This expansion comes as powerful winter-like systems overlap with an increasingly warm and humid airmass from the Gulf of Mexico.
In 2020, several distinct severe weather events contributed to above-average activity. The first outbreak came from April 7âÂÂ9, when 31 generally weak tornadoes were recorded across the Midwestern United States and Northeast, especially in Ohio. On Easter weekend, a widespread tornado outbreak featuring several significant to violent tornadoes occurred across much of the Southeast, with 141 tornado confirmations. Tornadoes inflicted 12 deaths in Mississippi, 3 deaths in Tennessee, 8 deaths in Georgia, and 9 deaths in South Carolina. The outbreak prompted 141 tornado warnings in a 24-hour period, the most in one day since the tornado outbreak of March 2âÂÂ3, 2012. It registered as the sixth-largest tornado event on record in North Carolina, ranked as the second deadliest outbreak on record in South Carolina, and had the highest number of strong (EF2+) tornadoes in a single day on record in South Carolina. From April 21âÂÂ23, another outbreak of 52 tornadoes across the Southeast caused six deaths. In all, there were 267 confirmed tornadoes in the US in April 2020, and these combined to cause 40 deaths in the month.