Dust?

I took this photo this morning of the mountain almost due north our house. (Sorry about the power lines!) This afternoon I can hardly see it because of dust in the air. We are having 25mph winds with gusts to 50 (40kph gusting 80 kph). This is from one of the Las Vegas tv stations:

The National Weather Service in Las Vegas has issued a dust advisory for the weekend due to high winds. Clark County Air Quality officials are advising residents that there could be unhealthy levels of dust due to expected high winds. Dust can cause people with respiratory illnesses like asthma to have symptoms such as coughing, wheezing and shortness of breath.

Not a great day for outside activities; not to mention it is kind of cool. Good day to stay inside and spend way too much time on the net. Whatever you are doing, be careful, it's dangerous out there.