Buzz
Recall the tornado depicted in "The Wizard of Oz?" It was crafted using a 35-foot (11-meter) long windsock.
Andreas Schulze/ThinkStockEssential Insights
- Although the majority of tornadoes travel from southwest to northeast, this is not a fixed pattern.
- Tornadoes are driven by the thunderstorms that spawn them, typically moving along the storm's trajectory. However, they can abruptly shift or change direction due to particular wind patterns.
When studying tornadoes, remember this principle: absolutes don't exist. While some guidelines are steadfast—such as seeking shelter in an interior bathroom tub being far safer than staying in a mobile home during a tornado—don't assume the bathtub is an infallible refuge. Winds reaching 200 miles per hour (322 kilometers per hour) can easily toss them around [source: Edwards]. Similarly, while cities are less frequently struck by tornadoes, don't tell residents of Oklahoma City they're immune. Numerous cities, including OKC, have experienced severe tornado damage multiple times, proving no area is entirely safe.
If you spot a tornado, don’t rely on fleeing westward for safety. Although many tornadoes travel from southwest to northeast, this isn’t an unbreakable rule of nature [source: MCEG]. Tornadoes seem to defy human assumptions about their behavior, as they aren’t deterred by water or mountains, nor are they drawn to trailer parks.
While the majority of tornadoes follow a west-to-east trajectory, this isn’t universal. They originate from thunderstorms, typically aligning with the movement of these parent storms, which usually advance from the southwest [sources: Cappella; Chicago Tribune]. However, tornadoes can abruptly change direction or even reverse course if influenced by specific wind conditions [source: City of Chicago].
Keep in mind that weather patterns vary significantly across different regions of the United States and the world. For example, Minnesota frequently experiences storms moving northwest, as many of its weather systems originate from the north. In contrast, Texas often encounters southeastern weather fronts, leading to different storm paths [source: MCEG]. While regions may have general weather tendencies, weather remains inherently unpredictable. Assuming a storm’s path based on local patterns can be perilous.
In summary, tornadoes often follow a west-to-east pattern in many tornado-prone areas. However, this isn’t a guarantee, as they can deviate unexpectedly. If you’re escaping a tornado, head directly to a shelter rather than trying to guess its path.
