This page documents confirmed tornadoes from August to September 2020 via various weather forecast offices of the National Weather Service. Based on the 1991–2010 averaging period, 83 tornadoes occur across the United States throughout August, while 74 occur in September.[1]
A significant number of tornadoes in both months came from the tropics. August had 180 tornadoes, which was well above average, with 55 of them coming as a result of Hurricanes Isaias and Laura. In contrast, September saw only 38 tornadoes, which was well below average, with 23 of them coming from Hurricane Sally and Tropical Storm Beta.
This excludes the tornadoes in the Dakotas and Colorado.
Event was associated with Hurricane Laura.
The events in Arkansas were associated with Hurricane Laura.
The events in the Southeast were associated with Hurricane Laura.
Events were associated with Hurricane Sally.
Event was associated with Hurricane Sally.
Event in South Carolina was indirectly associated with Tropical Storm Beta.
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