Can a long-standing streak for robust tornadoes escape within the USA – with that?
In May, the United States had 288 preliminary reports of tornadoes, above the May average of 276 tornadoes. None of these storms were classified as stronger than an EF2, which was the first time since 1950, when records began, that there was no tornado of EF3 force or more in May. There were also no fatal tornadoes in the United States in May, making this the first year since 2014 without a killer tornado in May.
Tornade activity in May 2021 was a far cry from the unprecedented pace that unfolded just two years ago. May 2019 saw an almost two-week period of uninterrupted tornado activity in the United States, with a record of 13 consecutive days with at least eight or more tornado reports published. There were a total of 556 tornadoes that month.
The eighth fewest tornadoes and only eight significant (EF2 +) tornadoes were observed that May.
Here is the NWS Storm Prediction Center’s Twitter thread.
This thread provides a brief summary of the May 2021 storm.
The most notable statistic is that no tornadoes have yet been rated EF3 +. If so, it would be the first time in recorded history (since 1950) that there were no EF3 + tornadoes in May.
Severe weather reports in May were below normal, but tornado reports were close to the 10-year average.
May 2021 had the eighth fewest Tornado watches since 1970.
So far, only 8 EF2 + tornadoes have been confirmed in May 2021. If no additional significant tornadoes are added, it would be the fifth fewest significant tornadoes in May in recorded history (1950-present).
Originally tweeted from the NWS Storm Prediction Center (@NWSSPC) on June 10, 2021.