Why May is the most active month for tornadoes


MEMPHIS, Tenn. (WMC) – In the Mid-South, we all know that spring means severe weather. The main months for spring tornadoes in the central south are April, May and June. During hurricane season, there is an exact day for the peak of hurricane season which is September 10, but the date for most tornadoes is not as familiar to most. Spring usually means the onset of warmer temperatures and the battle between warm spring temperatures and cold winter temperatures begins and can signal danger as the threat of severe weather increases for severe thunderstorms. and tornadoes.

Since 1950 there has been a register of all tornadoes. These reports are documented by the National Weather Service (NWS). Research has shown that half of the tornadoes have happened in just 3 months, the months being April, May and June. The reason these months are more prone to tornadoes is because the ingredients for powerful storms and large tornadoes come together frequently during these months.

We have times in April when tornado activity increases, but the busiest month for tornado activity is May. According to research, the United States gets 22% of its annual total in May. Additionally, May also features the seven-day average peak of tornado season which occurs between May 19 and May 26. About 6% of all recorded tornado reports occurred during this seven-day period. The single date with the most tornado reports is May 25

May 25 is the day with the highest number of tornado reports, with 649 tornadoes between 1950 and 2020. Scientists say the date could change in the future when new data is added to the Storm Prediction Center (SPC) database. However, at least one tornado has been reported on May 25 every year since 2004. Not only is May 25 the busiest day for tornadoes, but some of the strongest tornadoes, EF5 tornadoes, have occurred on this day. date. According to the National Weather Service, most recently, in 2008, an EF5 tornado tore through a 43-mile-long swath across Iowa, injuring 70 people and killing six.

Tornado Safety Tips

  • Be prepared for the weather: Check regularly with the Action News 5 First Alert Weather team to see if you are at risk of severe weather. Listen to local news Stay informed of severe thunderstorm watches and warnings or tornado watches and warnings
  • Sign up for Action News 5 First Alert weather app notifications: Have multiple ways to receive communications, don’t rely solely on outdoor sirens.
  • Create an action plan: Have a family plan that includes an emergency meeting place and related information. Choose a safe room in your home, such as a basement, storm cellar, or an interior downstairs room with no windows.
  • Practice your plan: Hold a regular family severe thunderstorm drill so everyone knows what to do if a damaging wind or large hail is approaching. Make sure everyone in your family knows to go when severe thunderstorm warnings are issued. Don’t forget the pets if the weather permits.
  • Prepare your home: Keep trees and branches trimmed near your house. If you have time before bad weather hits, secure loose items, close windows and doors, and move all valuables indoors or under a sturdy structure.

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