At 1630 UTC, there appears to be little if any dust emissions from the Sevier Lake bed, Sevier Desert, and Milford Flat fire scar.
|Visible satellite image at 1630 UTC 16 Feb|
That being said, the surface winds in this region are just beginning to exceed the minimum speed needed for dust emission. At Delta, UT (KU24) at 1647 UTC, for example, the temperature is still only 48F, with sustained winds of 21 knots (10.5 m/s).
As the convective boundary layer continues to grow, surface winds should increase dramatically in the next couple of hours, so the meteorology should be in place soon. Stay tuned and we'll see if the land surface cooperates.