A dust advisory has been issued for Southern Nevada because of winds from Arizona thunderstorms that have produced dust blowing into the region, Clark County said. Eclectic group gathers for start of trial over Tupac Shakur slayingDust kicked up by Arizona thunderstorms has invaded Clark County on Monday, Aug. 10, 2026. (Glenn Cook/Las Vegas Review-Journal)Clark County’s air quality took a hit Monday when windblown dust from Arizona thunderstorms moved into the area leaving unhealthy air and murky views in its wake. The intrusion of dust into the valley’s airspace prompted a dust advisory from the Clark County Environment &Sustainability’s Division of Air Quality. Air quality monitors recorded very unhealthy to hazardous levels of air pollution in the central Las Vegas Valley as of 8 a.m. Monday.