What Is A Haboob?

Tools

By By Steve Pool

SEATTLE - A Haboob is a very strong dust storm that moves through hot and dry regions, including the Desert Southwest. With wind speeds up to 50 mph, they form from strong downdrafts in nearby thunderstorms. The winds pick up dust and sand and can make a wall of blowing sand as high as 3,000 feet.

Along somewhat similar lines are "sirocco" winds, which is a hot wind that blows north-to-northeast across the Sahara Desert.

As it blows across the Mediterranean Sea, it picks up moisture, and then plows into southern Europe as a hot and humid flow. It can bring triple-digit heat with uncomfortable humidity to areas such as Italy and southern France. It can also bring a lot of dust.

Not to be outdone are "williwaw" winds, which are violent winds that come off mountainous coastal terrains and can destroy sailing ships along the coastline.

For More Information:

Photos of Haboob -- www.atmo.ttu.edu

Sirocco -- mediatheek.thinkquest.nl

Haboob -- mediatheek.thinkquest.nl

Your Photos

YouNews Goodbye Summer! Goodbye Summer!
With the Autumnal Equinox starting late last night, I ventured to Gas Works Park to capture Seattle's last day of summer. Pictures were taken between 6:30 and 7:00 PM.
YouNews Autocomplete miscue Autocomplete miscue
Sitting on southbound 405 in Bothell this morning, the traffic information board displayed this message. Obviously the autocomplete function was on and no one proof read the message.

Pretty funny though...
YouNews Morning of Fall Equinox Morning of Fall Equinox
These two photos of the city Skyline were taken this morning from Kerry Park at Sunrise (6:54 am). Unfortunately there was heavy cloud cover and the Sun was not visible. The Fall Equinox starts this evening, so sunrise will be coming later, and sunset will happen sooner.