At 732 PM MDT, Doppler radar indicated earlier thunderstorms produced heavy rain across portions of Warm Creek, Last Chance Creek, and Croton Canyon down to Lake Powell. Between 0.25 and 1 inch of rain has fallen. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding.
SOURCE...Radar indicated.
IMPACT...Life threatening flash flooding of creeks, streams, slot canyons, and normally dry washes.
Some locations that will experience flash flooding include... portions of Warm Creek, Last Chance Creek, and Croton Canyon down to Lake Powell, including areas within Glen Canyon National Recreation Area.