Storms have always been around but recently in the past 35 years they have become dramtically more intense. These intense power stroms usually happen in the Great Plains or Midwest. Although these stroms are much larger and powerful than smaller ones, no model can stimulate these storms. Recent research has found more heavy springtime rain falling in the central United States in recent years, but scientists did not know what types of storms were causing the increase. Differen't storms respond to the climate in differen't way so each storm is very unique and needs to be examined closely and monitored. Mesoscale convective systems are a type of storm that develops from smaller convective storms that fight to form the largest type of convective storms on Earth. These storms are the easiest to be detected by in space. A new technique called for a well-established satellite detection method that gave scientists alot of answers. The results showed the frequency of very long-lasting ones increased by about 4 percent per decade, most notably in the northern half of the central region -- just below the Great Lakes. The researchers rated the storms that produced the top five percent of rainfall as extreme events and saw that extreme events have become more frequent in the last 35 years.
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