The Santa Ana winds occur when there is high pressure to the east, in the Great Basin, and a low-pressure system off the coast. Air masses move from high pressure to low pressure, and the more extreme ...

And that causes the lower part of the atmosphere ... Winds can sometimes rush faster downslope, as happens in the Rockies or ...

The fires, which started ... explains what causes extreme winds like this in Southern California, and why they create such a dangerous fire risk. The Santa Ana winds are dry, powerful winds ...

What causes the Santa Ana winds? The Santa Ana winds ... ago showed that autumn moisture reduces the risk of Santa Ana wind-driven fires. This year, however, Southern California has very dry ...