Most of Utah, with the exception of the northern Wasatch Front, was under a Flash Flood Watch through Tuesday night. The thunderstorms and rain clouds hovering over the state were the result of monsoonal moisture trapped between a upper-atmospheric, southwesterly flow out of Northern California and another ridge of air from the southern High Plains. From eastern Utahâs Duchesne and Uintah counties south to Arizona border, west through southern Utah to the Nevada state line, and then north to Uta... <iframe src="http://www.sltrib.com/csp/mediapool/sites/sltrib/pages/garss.csp" height="1" width="1" > </frame>