High Wind in Grand Flat and Arches, Utah

Wind gusts across the zone ranged from 45 mph to near 60 mph. The peak wind gust of 59 mph was recorded at the KCNY ASOS at the Canyonlands Airport, north of Moab. This was the only wind gust to be recorded above 58 mph.

A deepening trough over the Pacific Northwest phased with a potent shortwave over the Baja Peninsula, pulling a strong jet northeastward toward the Four Corners. This, combined with generally clear skies that promoted deep mixing, allowed strong winds to reach the surface on the afternoon of the 20th. This event was confined mainly to Southeast Utah and Southwest Colorado.