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| Joined: | Wed Sep 28th, 2005 |
| Location: | SCOTTSDALE, AZ |
| Posts: | 4759 |
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It remember me this reportage about historic facts I saw a while ago. Long sand-storms invading some regions of the US many years ago and drying out all life, killing people and animals years after years.
They finally understood that intensive deforestation and bush cutting for massive agriculture had builded up this phenomenon...
Then they planted bush lines at regular spaces to retain the earth. It worked ofcourse...
The dust bowl was in the plain states (Oklahoma, Nebraska, etc) in the middle of the US.
Southern Arizona is basically a desert with summer temps as high as 120+ (F) degrees. It was 118 F here just last week. It is dry right now and massive fires have been burning in parts of Arizona and neighboring New Mexico for the past month or so.
It is now the "rainy or monsoon" season here. If the right conditions exist when it rains, the rain water can evaporate before it hits the ground which cools the air and it can generate strong winds (microbursts in some cases). When it all comes together just right we get a dust storm.
There is no shortage of dust in Arizona. Average yearly rainfall here is about 6-7 inches.
Visit: http://tucsoncitizen.com/wryheat/2011/07/08/more-on-the-haboob-dust-storm-that-covered-phoenix/