Blowing dust across parts of the Upper Midwest
GOES-19 True Color RGB images (left) and Ash RGB images (right), from 1600 UTC on 12 May to 0036 UTC on 13 May [click to play MP4 animation]
Note that the leading edge of one of the blowing dust plumes was beginning to move over the “4 lakes” area of Madison in southern Wisconsin near the end of the day (0036 UTC images). A vertically-pointing lidar on the University of Wisconsin-Madison campus depicted an increase in boundary layer aerosol loading (shades of orange) from 2300 UTC on 12 May to 0200 UTC on 13 May (below).
Plot of lidar Linear Depolarization at Madison, Wisconsin from 1800 UTC on 12 May to 0500 UTC on 13 May
GOES-19 Ash RGB images that included outlines of counties affected by a NWS-issued Wind Advisory and/or Blowing Dust Advisory are shown below. At times the Blowing Dust Advisories covered parts of I-29 in North Dakota as well as I-94 and I-90 in Minnesota.
GOES-19 Ash RGB images with an overlay of NWS Wind Advisories (open beige counties) and Blowing Dust Advisories (shaded beige counties), from 1501 UTC on 12 May to 0101 UTC on 13 May [click to play MP4 animation]