The U.S. is having an incredibly quiet tornado season – so far

In the first five months of 2018, the tornado caused three deaths, far below the average of 38 in the past in that period, and a record low in the last 12 months. What is the reason behind this positive change?

One reason is the tornado, especially the lack of a strong tornado. As of May 31, NOAA's National Weather Service recorded a total of 431 witness tornado reports, slightly above the average for this period.

Only three of them were EF 3 rated more violent and fatal, none of the enhanced Fujita scale was appreciated higher (EF 4 or EF 5). More than 85% of tornado deaths occurred in tornadoes with EF 3 or higher. Surprisingly, the United States has a record for 305 days from 17 May 2017 to 18 March 2018, but there is no EF 3 or any more tornado.

The researchers are looking for clues, but why are not so many people clear in this country this year?

Another possible explanation for the decline in tornado death rate is to raise public awareness. Since the devastating season of the tornado tornado in 2011, efforts to improve tornado preparation and correspondence in the US are dramatically increasing.

National weather service weather forecast countries have worked hard to develop a more intelligent, practical, more powerful warning language with the help of social scientists.

NOAA invested in new satellites, upgraded radars, faster supercomputers, and better models to improve predictions and warnings. NOAA researchers are striving to better understand the tornado and improve the tools used by the predictor

It is important to remember that a tornado can happen whenever the conditions are right. Everyone should make a safety plan, monitor your regional forecasts, and pay attention to tornado clocks and warnings. Please prepare for immediate action as soon as you can make a difference in just a few minutes, whether you can safely evacuate

The weather forecaster said the season of the Iowa tornado in 2015 was comparatively calm until the beginning of September. Throughout the year a total of 30 tornadoes were recorded, falling below the average of 46 tornadoes normally occurring during that year. The tornado season of Iowa peaked in the history of May and June, but there is a possibility that a late epidemic may occur in November. This season began on April 9th ​​when Arashi 's tornado hit the north of Davenport, the Middle East of Iowa. The longest tornado in the season occurred on May 10th. Late May is characterized by two rare early morning tornado events. May 17 Madison / Dallas County and another county in Jackson County on May 24. The May 17 storm also led to an outbreak leading to a derailment of 80 routes near Osceola.

The tornado season usually refers to the time when the United States is watching most tornadoes. The peak period of the "tornado season" in the southern plain is from May to the beginning of June. On the Gulf, at the beginning of spring. In the northern plains and the upper part of the Midwest, the tornado season is June or July. However, please be aware that tornadoes can occur at any time of the year. Tornados can also happen at any time of day or night, but most tornadoes will occur between 4 pm and 9 pm. Meteorologists at NOAA 's Storm Forecast Center have announced the tornado clock that they are seeing weather conditions throughout the U.S, it is suitable for tornadoes. A watch can cover a part of one or more states. Monitor and prepare bad weather, and enjoy NOAA weather broadcasts to see when warnings are issued

Tornado usually enters the grand entrance in March. So far, these strong storms usually destroy the South and Central America, but this season never fell. This is the first time that less than 100 tornados have been observed since 1970. As of June 27, only 571 tornadoes have been reported, and it is considerably lower than the average of 906 tornadoes in 10 years. It is hard to think that the total number in 2018 will increase dramatically at this time. For the earth network meteorologist and storm tracker Mark Elinwood, he looks for some important elements during the tracking day of the storm: as soon as you climb 500 mb to the south, to the south, the wind is Westerly wind, low level wind speed (usually at least 10 to 15 mph), and low level of moisture.