Another wave of tornado thunderstorms rips across the Great Plains and South this week – record year for life-threatening twisters in the US

Another wave of tornado-spawning thunderstorms is set to rip across the Great Plains and South this week, putting the U.S. within reach of a record year for life-threatening twisters.

Severe storms will drench a swath of the country from Texas to Mississippi over the next five days. Through Thursday, 369 tornadoes have been reported across the country, the most in five years and more than double the normal number of sightings.

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Another wave of tornado-spawning thunderstorms is set to rip across the Great Plains and South this week, putting the U.S. within reach of a record year for life-threatening twisters. via Bloomberg

An active jet stream and unusually balmy weather are to blame for the burst of deadly tornado activity, the storm prediction center said. Strong winds have dragged storms into the warm, humid air that’s blanketed the eastern half of the nation, creating conditions ripe for a weather phenomenon that leads to at least $400 million in damage a year in the U.S.

“We have a severe threat starting today and continuing for each of the next five days through at least Monday. Through mid-March, we are on a record or near-record pace. This is partly due to the atmospheric moisture across the southern U.S. in January that was more typical of April.” said Patrick Marsh from the storm prediction center in Norman, Oklahoma.

The peak of tornado season varies across the country. Activity is concentrated in the Southeast early in the year, drifting into the Great Plains’ “Tornado Alley” in May and June before heading into the Northeast by early summer.

The U.S. has more tornadoes than any other country. The nation averages about 1,200 tornadoes a year, with the storms killing as many as 60 people and injuring 1,500.

Tornado “outbreaks,” or storm systems that spin out multiple funnels in a limited time and area, are becoming more frequent in the U.S… Still, the trend isn’t consistent from what some models predicted would result from global warming, the study found.

This could mean climate change isn’t having an impact on tornado numbers, or it may be because scientists just haven’t figured out what effect it’s having.

One thing’s for certain: Costs associated with tornado damages are rising as the number of people living in the path of twister-producing storms rises.

Since 1980, losses due to severe thunderstorm events in the U.S., which includes tornadoes, hail and straight-line winds, have increased dramatically largely due to socioeconomic effects.

The system pushing into the central U.S. may create more severe weather as it pushes east. It definitely is going to have the potential for a multi-day event. And it could just be the first of several such systems. Long-range models show the potential for a train of storms through the central U.S. for the next few weeks.

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