NWS: Flash Flood Warning for the Grizzly Creek Fire burn area; Glenwood Canyon and Cottonwood Pass closed

Garfield County Sheriff’s Office

July 30, 9:15 amMotorists from Glenwood Canyon safely in Glenwood Springs

Colorado Department of Transportation

July 30, 12:40 am UPDATE: I-70 in Glenwood Canyon is CLOSED due to mudslides at several locations along the roadway next to the Grizzly Creek burn scar area. CDOT is working to ensure safety in the canyon. Motorists should use the northern alternate route (see image). A safety closure continues to be in place for I-70 in Glenwood Canyon, with closure points at Exits 87 (West Rifle), 109 (Canyon Creek), 116 (Glenwood Springs) and 133 (Dotsero).

CDOT crews are responding to the multiple large mudslides on I-70, caused by heavy rain on the Grizzly Creek burn area. Our focus is on life safety, and the debris flows will be evaluated more extensively in the morning. Crews will continue to monitor the canyon and weather overnight. This will be an EXTENDED CLOSURE and motorists should use the recommended alternate route (please see map).

Please do not use navigation apps to choose an alternate route, because those routes are often unpaved, rough roads without services and which can be unsafe to drive. **All updates will continue to be posted to cotrip.org, CDOT’s Twitter page and available by dialing 511.** This post will not be monitored overnight.

Glenwood Canyon detour route

Eagle County Sheriff’s Office

Cottonwood Pass is closed due to severe weather.

Garco 911

July 29, 8:58 pm – I-70 is closed between mile-markers 87-133 both directions, West Rifle-Dotsero, due to a flash flood warning.

Colorado Department of Transportation

I-70 Glenwood Canyon CLOSED due to a Flash Flood Warning for the Grizzly Creek burn scar area. Updates will continue to be posted to cotrip.org and available by dialing 511.** Closure points are Exit 133, Exit 116, Exit 109 and Exit 87 (West Rifle).

National Weather Service

8:45 pm, July 29 – 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, and east central Garfield County in west central Colorado.

* Until 1045 PM MDT. 

* At 845 PM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Grizzly Creek Fire burn area. Between 0.5 and 1 inch of rain has fallen. The expected rainfall rate is 0.7 to 1.3 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 Glenwood Canyon area. 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. 

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 Glenwood Springs and Shoshone. 

FLASH FLOOD…RADAR INDICATED FLASH FLOOD DAMAGE THREAT…CONSIDERABLE EXPECTED RAINFALL…0.7-1.3 INCHES IN 1 HOUR.

Colorado Department of Transportation

6:00 PM MDT Thu Jul 29 2021
UPDATE: I-70 Glenwood Canyon is OPEN – CDOT crews have reopened both westbound and eastbound I-70 Glenwood Canyon. The Flash Flood Warning has ended. **This post will not be updated or monitored overnight. For the status of the road closure, please check cotrip.org or CDOT’s Twitter page, or call 511**

3:30 PM MDT Thu Jul 29 2021
I-70 in Glenwood Canyon is closed at Exit 116 (Glenwood Springs) and Exit 133 (Dotsero), due to flash flooding potential for the Grizzly Creek burn scar. Local eastbound traffic on I-70 will be allowed east of Exit 109, but motorists should expect delays. No Name. Grizzly Creek, Shoshone, and Hanging Lake rest areas are closed.

National Weather Service

4:12 PM MDT Thu Jul 29 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 615 PM MDT.
* At 412 PM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Grizzly Creek Fire Burn Area. The expected rainfall rate is 0.8 to 1.3 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 Glenwood Canyon area. 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.

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…Glenwood Springs and Shoshone.

FLASH FLOOD…RADAR INDICATEDFLASH FLOOD DAMAGE THREAT…CONSIDERABLE EXPECTED RAINFALL…0.8-1.3 INCHES IN 1 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. 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.

Central Colorado River Basin-Gore and Elk Mountains/Central Mountain Valleys-Flat Tops
3:01 PM MDT Thu Jul 29 2021
Map of flash flood watch

…FLASH FLOOD WATCH FOR THE GRIZZLY CREEK FIRE BURN AREA IN EFFECT UNTIL MIDNIGHT MDT TONIGHT…
…FLASH FLOOD WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING FOR CENTRAL AND NORTHERN MOUNTAINS INCLUDING THE GRIZZLY CREEK AND LAKE CHRISTINE BURN SCARS…

The National Weather Service in Grand Junction has expanded the

* Flash Flood Watch to include portions of northwest Colorado and west central Colorado, including the following areas, in northwest Colorado, Flat Tops. In west central Colorado, Central Colorado River Basin and Gore and Elk Mountains/Central Mountain Valleys.

* Until Midnight MDT tonight.

* National Weather Service Meteorologists are monitoring the potential for heavy rainfall over the Grizzly Creek Fire Burn Area, which may lead to flash flooding and debris flows.

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

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 the Grizzly Creek Fire burn area; Glenwood Canyon and Cottonwood Pass closed