Massive dust storms, known as haboobs, can sweep through the U.S. Southwest, surprising and challenging motorists.
These storms form from thunderstorms that unleash strong downdrafts, reaching speeds between 50 and 80 mph. This wind hits the ground and sends dust flying. Meteorologist Sean Benedict from the National Weather Service explains that the storms can create towering walls of dust, sometimes over a mile wide and thousands of feet high.
If the thunderstorms keep developing, the haboobs can expand and travel over 100 miles, particularly in areas like the corridor between Phoenix and Tucson. Haboobs can also occur in other arid regions, including Nevada, New Mexico, and Texas.
Interestingly, experts are debating whether these storms will become more common. Since the 1970s, localized rain during the monsoon season in the Southwest has become heavier. But droughts are lasting longer, making conditions drier. Climate change contributes to both extreme rainfall and persistent drought, which could influence future dust storm patterns.
Benedict notes that farming practices can also impact dust levels. When land is disturbed, more dust can be stirred up. Not all dust storms are haboobs; these specific ones are linked to thunderstorms.
According to the National Oceanic and Atmospheric Administration, the Phoenix area experiences one to three large dust storms each year.
Safety Tips During Haboobs
The National Weather Service issues warnings when dust storms are expected, especially when visibility might drop to a quarter mile. Haboobs can appear suddenly and reduce visibility to zero, making driving very dangerous.
Experts advise drivers to pull off the road as far as they can, stop the vehicle, and turn their lights off. If motorists try to follow tail lights during low visibility, they risk collisions with parked cars.
In summary, haboobs are fascinating yet dangerous events shaped by a mix of weather conditions and environmental factors. Staying informed and practicing safety can help mitigate the risks they pose.
For more detailed climate data and the effects of climate change on weather patterns, visit the National Weather Service.
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environment,Climate,Sean Benedict