Hurricanes Hurricanes are common across North America, especially in the warmer months.
About 10 percent of them become heavy, which means that they produce plows with a diameter of 2.5 cm or more, strong winds with more than 50 knots or hurricanes. Keep going The United States has recently experienced two unusual phenomena: systematic lines of strong winds with widespread harmful winds called Dericus.
Derekus mainly occurs in Central and East America, where many places are affected on average once or twice a year. They can cause significant damage to structures and sometimes “blow up” millions of trees.
Pennsylvania and New Jersey were hit by Derichu on June 3, 2020, killing four people and leaving about one million in the entire Central Atlantic.
Derekos are less common in the west, but Colorado – where I am a state meteorologist and director of the Colorado Climate Center – saw a rare and powerful Dreco on June 6 that killed 100 people in some places. Winds blow at miles an hour.
Derekus has been observed and analyzed in many other parts of the world, including Europe, Asia and South America.
Derichus is an important and active research area in the meteorological department. I expect at least one or two more to take place in the US this summer. What do we know about these extraordinary storms?
Scientists have long recognized that systematic storm surges can cause large harmful winds. Gustavo Henriques, a professor at the University of Iowa, analyzed strong winds in the 1870s and 1880s and found that many catastrophic storms carry straight winds rather than hurricanes.
Since the Spanish word “hurricane” was already in use, Henrique’s proposed “Dercho” – “straight ahead” for Spanish – to damage hurricanes associated with hurricanes.
In 1987, meteorologists qualified for Dericho. He suggested that strong winds – 26 meters per second (57.5 miles per hour) or more – would need to generate strong winds to classify a storm system as a Derico. You must cover a distance of at least 400 kilometers. No more than three hours to separate single reports of long, strong winds.
Derekus is almost always caused by a type of weather system called the echo of the bow, which is shaped like an archer’s bow on radar images. As a result, it is a certain type of mesoscale convection system, a term used to describe large, organized groups of storms.
Researchers are investigating whether and how climate change has affected weather hazards from hurricanes. Although some aspects of the mesoscale convection system, such as the amount of rain they produce, tend to change at constant heat, it is not yet clear whether future climate change is likely to weaken or worsen. Can influence
Over the landscape
The term “dechos” sparked a public outcry in June 2012, when the most devastating dechos in US history formed in the Midwest and covered approximately 700 miles in 12 hours, eventually covering the Washington, DC area. ۔ The incident killed 22 people and caused millions of lightning strikes.
Before June 6, 2020, there were few registered Dracos in the western United States. That day, a heavy thunderstorm followed the late morning winds in eastern Utah and western Colorado.
This was unusual in itself because storms in this region are less organized and occur later.
Thunderstorms continue to form and thunderstorms move northeast of the Rocky Mountains. This was even more unusual: the dereko-forming storm lines run through a pool of cool air near the ground, which is normally extended like a rake by a mountain range. In this case the line was organized.
When the storm rose east of the mountains, it caused chaos in the Denver metropolitan area and northeastern Colorado. It then gained strength as it advanced east-northeast of Wyoming, Western Nebraska, and Dakotas.
In total, there were approximately 350 reports of strong winds, including 75 miles per hour (approximately 34 34 meters per second) or more. The strongest tremor in the Colorado Rocks Winter Park ski area was 110 miles an hour. Of these, 95 came from Colorado – the strongest ever reported by a hurricane system.
June 06 20 warnings
The animation shows the growth and development of West Derricko from June 6-7, 2020. (Iowa Environmental Mason)
Coloradians are used to great weather, including strong winds in the mountains and foothills. Some of these winds are caused by mountain slopes,