Wednesday, February 16, 2011

Dust, Wind, and Frontal Development

As noted by one of our readers, there is some dust in the air now over the Salt Lake Valley, as well as near Wendover where the visibility is more strongly reduced.

UDOT Traffic Cam
I-80 MilePost 1, Wendover, UT, 1320 MST 16 Feb
With a careful look, you can make out some dust emission sources and plumes in the West Desert.  That being said, we are not seeing large dust emissions from the usual suspects in southern Utah, despite the fact that winds appear to be strong enough (27 mph gusting to 39 mph at near Delta at 1359 UTC).  The meteorology is right, but perhaps the land-surface is not ready to go so early in the year.

Meanwhile, a healthy cold front has developed in eastern Nevada.  It is 53F presently in Wendover with a south wind, but 30F at the Elko airport with a west wind.

MesoWest surface map at 2120 UTC
Update 2:29 PM: I just looked out the window and there is lots of dust!  Where is it coming from?  Inquiring minds want to know.

1 comment:

  1. The latest MODIS pass is available:

    You can see a plume near Wendover. There may a few other dusty looking spots but none are entirely obvious by looking at this frame only.