National Weather Service
Aug. 3, 2021, 3:49 p.m.: The National Weather Service has issued a flash flood warning for the Grizzly Creek Fire burn area, including the Deadhorse and French Creek drainages, remains in effect until 4:45 p.m. this afternoon in western Eagle and east central Garfield counties. At 3:49 p.m. MDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain over the Grizzly Creek Fire Burn
Area, including Deadhorse and French Creek drainages.
Between 0.4 and 0.6 inches of rain have fallen. The expected rainfall rate is 0.3 to 0.7 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the Grizzly Creek burn scar mainly in the Deadhorse and French Creek drainages. The debris flow can consist of rock, mud, vegetation and other loose materials.
HAZARD – Life-threatening flash flooding. Thunderstorms producing flash flooding in and around the Grizzly Creek Fire Burn Area Deadhorse and French Creek drainages.
SOURCE – Radar and automated gauges.
IMPACT – Life-threatening flash flooding of areas in and around the Grizzly Creek Fire Burn Area in the Deadhorse and
French Creek drainages. Some locations that will experience flash flooding include eastern end of the Grizzly Creek burn scar. This includes the following highways Interstate 70 in Colorado between mile markers 123 and 129, which are closed to traffic.
FLASH FLOOD – Radar and gauge indicated.
FLASH FLOOD DAMAGE THREAT – Considerable
EXPECTED RAINFALL – 0.3-0.7 inches in one hour.
Instructions: This is a life-threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks streams and ditches in the Grizzly Creek Fire Burn Area including Deadhorse and French Creek drainages. Severe debris flows can also be anticipated across roads. Roads and driveways may be washed away in places. If you encounter flood waters, climb to safety. Turn around, don`t drown when encountering flooded roads. Most flood deaths occur in vehicles.