Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Remain alert for flooding even in locations not receiving rain. Dry
washes, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
At 534 PM MDT, Doppler radar rainfall estimates of between 0.75 and
1.75 inches of rain fell from earlier thunderstorms, with the
heaviest rainfall focused in the upper Paria River watershed and
tributaries, including Willis Creek, Bull Valley Gorge, Dunham slot
canyon, and Herm Pollock slot canyon. Flash flooding is ongoing or
expected to begin shortly, with the flood wave moving down drainage
within the Paria River.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
normally dry washes, and slot canyons.
Some locations that will experience flash flooding include...
Areas around Kodachrome Basin State Park, including the Paria
River.