At 316 PM MDT, Doppler radar was tracking an area of strong thunderstorms near Sand Hollow State Park, or 22 miles southwest of Zion National Park, moving north at 45 mph.
HAZARD...Wind gusts up to 40 mph and half inch size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Hail may accumulate on roadways causing hazardous travel.
Locations impacted include... Washington, Hurricane, La Verkin, Quail Creek State Park, Sand Hollow State Park, Toquerville, Leeds, Virgin, Pintura and Kolob Canyon.
This includes Interstate 15 between mile markers 16 and 40.