Are Tornadoes LESS Likely in Hilly Areas?
Tornadoes are one of the most destructive and feared natural disasters, leaving a trail of destruction and loss of life in their wake. While tornadoes can occur anywhere, there is a common misconception that hilly areas are less likely to experience tornadoes. In this article, we will explore whether this claim is true or not.
Theories and Statistics
Several theories have been proposed to explain why hilly areas might be less prone to tornadoes. One theory is that hills and mountains can disrupt the wind currents and create a "wall" that prevents the formation of tornadoes. Another theory suggests that the terrain can lift or redirect the wind currents, making it more difficult for tornadoes to form.
According to the National Oceanic and Atmospheric Administration (NOAA), from 1995 to 2015, the majority of tornadoes in the United States occurred in areas with average elevations below 500 feet above sea level. However, this data also shows that 23% of tornadoes occurred in areas with elevations above 500 feet.
Tornado Patterns in Hilly Areas
While it is true that many tornadoes do not occur in hilly areas, this does not necessarily mean that hilly areas are completely safe. Tornadoes can still occur in hilly areas, even if the terrain is not ideal for their formation.
Case Study: The 2018 New Zealand Tornado
On November 4, 2018, a devastating tornado struck the town of Ashburton, New Zealand, killing two people and injuring several others. The area is known for its rugged terrain, with hills and mountains surrounding the town. The event raised questions about whether the area was prone to tornadoes, and whether the hilly terrain played a role in the event.
Hilly Terrain Characteristics That Affect Tornado Formation
While hilly terrain may not be a major factor in tornado formation, there are certain characteristics that can make it more or less conducive to tornadoes. These include:
• Topography: Hilly terrain with steep slopes, valleys, and ridges can disrupt wind currents and create areas of rotation that can lead to the formation of tornadoes.
• Moisture: Hills can create areas of higher moisture content, which can lead to the formation of clouds and thunderstorms, the precursors to tornadoes.
• Wind direction: Hills and mountains can redirect wind currents, creating areas of wind shear, which can lead to the formation of tornadoes.
Are Hilly Areas Prone to Tornadoes?
While hilly areas may not be immune to tornadoes, the data suggests that they are less likely to experience them. According to the Tornado History Project, from 1950 to 2017, the likelihood of a tornado occurring in a hilly area is approximately 1.4%, compared to 2.6% in flat areas.
Conclusion
In conclusion, while hilly areas may be less prone to tornadoes, it is not entirely true to say that they are completely safe. Tornadoes can still occur in hilly areas, and it is essential to stay prepared and aware of weather conditions, regardless of the terrain.
Key Takeaways:
- Hilly areas are less likely to experience tornadoes, but not immune to them.
- Certain characteristics of hilly terrain, such as topography, moisture, and wind direction, can affect the formation of tornadoes.
- It is essential to remain aware of weather conditions and take necessary precautions, even in hilly areas prone to tornadoes.
References:
- National Oceanic and Atmospheric Administration (NOAA). (2016). Tornado Climatology.
- Tornado History Project. (n.d.). Tornado Frequency by Elevation.
Note: The data and statistics mentioned in this article are subject to change and may not reflect the current situations. The article aims to provide an overview of the general idea and trends, rather than a comprehensive and up-to-date analysis.