The Great Salt Lake is currently remarkably low with a great deal of exposed playa. MODIS imagery from Sunday shows that nearly the entire northeast arm, with the exception of Willard Bay (a reservoir) and perhaps some of the wildlife refuges, as well as most of Farmington Bay, to be water free. Vast areas around the western and northern side of the lake are also exposed.
Sorry east benchers, but there was no escape for you. Peak concentrations at Olympus Cove reached almost 110 ug/m3, much higher than observed during most wintertime inversions, although fortunately the event was short lived.