NWS: Flash Flood Warning for Grizzly Creek Fire burn area

National Weather Service

20:27 PM, Aug 2, 2021
The National Weather Service in Grand Junction has issued a

* Flash Flood Warning for the Grizzly Creek Fire Burn Area in western Eagle County in west central Colorado, east central Garfield County in west central Colorado

* Until 1030 PM MDT.

* At 827 PM MDT, Doppler radar indicated thunderstorms producing heavy rain over the eastern part of the Grizzly Creek Fire burn area in the Deadhorse Creek and French Creek basins Between 0.3 and 0.6 inches of rain have fallen. The expected rainfall rate is 0.5 to 1 inch 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 Dead Horse and French Creek drainages. The debris flow can consist of rock, mud, vegetation and other loose materials.

HAZARD…Thunderstorms producing flash flooding in and around the Grizzly Creek Fire Burn Area.

SOURCE…Radar.

IMPACT…Life threatening flash flooding of areas in and around the Grizzly Creek Fire Burn Area.

* Some locations that will experience flash flooding include Deadhorse and French Creek Basins.

This includes the following highways – Interstate 70 in Colorado between mile markers 125 and 129.

This includes the following streams and drainages – Deadhorse and French Creeks

FLASH FLOOD…RADAR INDICATED FLASH FLOOD DAMAGE THREAT…CONSIDERABLE EXPECTED RAINFALL…0.5-1 INCH IN 1 HOUR Instructions: Heavy rainfall will cause extensive and severe flash flooding of creeks…streams…and ditches in the Grizzly Creek Fire Burn Area. 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.

National Weather Service

Roan and Tavaputs Plateaus-Elkhead and Park Mountains-Grand and Battlement Mesas-Gore and Elk Mountains/Central Mountain Valleys-West Elk and Sawatch Mountains-Flat Tops-Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-Southwest San Juan Mountains
Including the cities of Rio Blanco, Columbine, Hahns Peak, Toponas, Skyway, Aspen, Vail, Snowmass, Crested Butte, Taylor Park, Marble, Buford, Trappers Lake, Ridgway, Glade Park, Telluride, Ouray, Lake
City, Silverton, Rico, and Hesperus
2:30 PM MDT Mon Aug 2, 2021

Map of Flash Flood Watch area

FLASH FLOOD WATCH NOW IN EFFECT UNTIL MIDNIGHT MDT TONIGHT…FLASH FLOOD WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING

The Flash Flood Watch is now in effect for

* Portions of northwest Colorado, southwest Colorado and west central Colorado.

* Until Midnight MDT tonight.

* A disturbance moving across the region in addition to monsoonal moisture entrenched across much of western Colorado and eastern Utah will support strong thunderstorms capable of producing heavy
rainfall this afternoon and evening. This watch includes the Grizzly Creek, Pine Gulch, Pack Creek, Lake Christine, 416 and the East Canyon Fire burn scars.

* Burn scars will be especially susceptible to heavy rainfall leading to quick runoff responses with debris and mud flows likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

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The National Weather Service in Grand Junction has issued a

* Flash Flood Watch for portions of northwest Colorado, southwest Colorado and west central Colorado.

* From Tuesday afternoon through Tuesday evening.

* A disturbance moving across the region in addition to monsoonal moisture entrenched across much of Western Colorado will support strong thunderstorms capable of producing heavy rainfall Tuesday
afternoon and evening. This watch includes the Grizzly Creek, Pine Gulch, Lake Christine, 416 and the East Canyon Fire burn scars.

PRECAUTIONARY/PREPAREDNESS ACTIONS

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

National Weather Service

Central Colorado River Basin-Upper Gunnison River Valley-Paradox Valley/Lower Dolores River,
including the cities of Eagle, Edwards, Glenwood Springs, Carbondale, Basalt, Gunnison, Cimarron, Gateway, and Nucla
3:06 AM MDT Mon, Aug 2, 2021

FLASH FLOOD WATCH IN EFFECT FROM NOON MDT TODAY THROUGH 10 PM THIS EVENING

Map of Flash Flood Watch

The National Weather Service in Grand Junction has expanded the

* Flash Flood Watch to include portions of southwest Colorado and west central Colorado, including the following areas, in southwest Colorado, Paradox Valley/Lower Dolores River. In west central Colorado, Central Colorado River Basin and Upper Gunnison River Valley.

* From Noon MDT today through this evening.

* A disturbance moving across the region in addition to monsoonal moisture entrenched across much of western Colorado and eastern Utah will support strong thunderstorms capable of producing heavy
rainfall this afternoon and evening. This watch includes the Grizzly Creek, Pine Gulch, Pack Creek, Lake Christine, 416 and the East Canyon Fire burn scars.

* Burn scars will be especially susceptible to heavy rainfall leading to quick runoff responses with debris and mud flows likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

NWS: Flash Flood Warning for Grizzly Creek Fire burn area