It's 100 Degrees in The Desert in AZ, What's The Weather Report? Rainy Weather Perhaps?
This month's Popular Mechanics 9 2010 pg 13 has this comment about rain;
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"Rain From Airplanes"
"Findings from the National Center for Atmospheric Research show that airplanes can trigger rain or snow simply by flying through clouds composed of supercooled water droplets. As the droplets pass over propellers or wings and into the cooler wake, they freeze and fall to the ground, creating distinctive "hole punch" clouds that are sometimes seen in the sky"
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...Other research shows that hurricanes are less common in times when there's more dust. This wouldn't be by shielding most of the time or the satellites couldn't see the land from above, I would think this may be because dust at large scale evens out temperature. All changes in weather need changes in temperature! For instance there's almost no snow in the arctic and antarctic because the temperature is mostly constant (the snow there built up in the ice ages meaning there was snow then and presumably the change in temperature is needed for this whether hot or cool who knows, perhaps Santwah Clause the Elf of N Ohio!). There is evidence that dust and ozone in the air around cities reduces lightning during storms. Thus it seems probable hurricanes are reduced by dust by way of the evening out of the temperatures and perhaps like a giant cloud, the temperatures are lower in general. A hurricane is a heat engine powered by heat.
..If dust controls weather I think we might use it to make rain more often; first we would explode enough dust to make clouds with airplanes or even by launching fireworks from the land because the best dust for this would cause condensation around each bit of dust. This would be the same method as the way jet trails make large clouds if overlapped except this wouldn't be by accident, the dust would be special to be safe to breathe and cheap and the most optimal to make the rain or even snow. This method would be used over dry areas; for areas with more moisture, the clouds are there so no fireworks needed, saving a lot.
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For the final step, large helicopters or machines like helicopters would be sent up and the water in the air could cause the rain. This is essentially absorbing a lot of the water from the air by the dust, and then causing the rain with the helicopter, ect..There are 50,000 tons of water above a mile of land on a hot summer day. Other methods might be to also create cool air by turbines or even lasers from the ground or other physics to change the phase.
This might also be used for creating snow, 2/3 of business is Christmas with Clause has more options than us, with our cash machines, if we spend our month's cash how so rich!