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Live Colorado weather blog, Nov. 23-24: Updates from Denver's Thanksgiving storm

Posted: 7:15 PM, Nov 23, 2023
Updated: 2023-11-24 13:30:40-05
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thanksgiving snowstorm denver nov 23 2023

DENVER — Denver's Thanksgiving snowstorm will begin after sunset, with up to 5 inches of fresh powder expected to fall in the Denver metro area by Saturday morning. Higher snow totals are expected west of Denver.

Below, you can find updates related to traffic and weather as the storm moves through. Refresh this page for the latest. If reading this in the Denver7 mobile app, click here for the latest updates.


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Friday, Nov. 24

11:28 a.m. | ADDITIONAL 2 TO 5 INCHES IN MOUNTAINS | A winter weather advisory remains in effect for the Mountains of Summit County, Mosquito Range and Indian Peaks until Noon Saturday where an additional 2 to 5 inches of snowfall is expected, acording to the National Weather Service (NWS) in Boulder.

11:15 a.m. | ADVISORY DROPPED | A large portion of the Front Range, Colorado’s plains and the I-25 Corridor, including the Denver metro area were under a winter weather advisory that expired at 11 a.m. Friday. Still, light snow will continue to fall and accumulations are expected to cause headaches for drivers navigating snow-covered roadways.

9:45 a.m. | C-470 CRASH | That multi-car crash on the ramp from westbound C-470 to Broadway involved 11 vehicles, the Douglas County Sheriff's Office said on social media.

7:35 a.m. | LOOK AT ROADS | Denver7's Sam Pena has a look at road conditions in the Cherry Creek neighborhood.

A look at Denver roads this snowy morning

7:15 a.m. | C-470 CRASH | South Metro Fire Rescue said there were no injuries in a 9-vehicle crash at the off ramp from westbound C-470 to Broadway but that the roadway was a "sheet of ice"

6:42 a.m. | TRAFFIC ADVISORY | The chain law for CMVs is in effect for Interstate 70 from mile markers 259-241, as well as U.S. Route 285 from mile markers 250-230.

3:35 a.m. | SNOW TOTALS | While the NWS said snowfall rates haven't been "particularly impressive" the northern foothills have seen decent accumulations including 5 to 7 inches in eastern Boulder County. While some roadways are slick and hazardous, the NWS said some winter weather alerts could be cancelled early.

3:15 a.m. | SNOW FORECAST UPDATE | Denver's western suburbs and eastern Boulder County were downgraded to a winter weather advisory due to projected snowfall amounts expected on the lower end, according to the NWS.

Thursday, Nov. 23

9:57 p.m. | SNOW FALLING | ...but the National Weather Service says it is "increasingly likely" most areas on the Front Range will end on the low end of the snowfall forecast range.

9:28 p.m. | TRAFFIC UPDATE | The closure of I-70 in JeffCo likely to last "hours" as a hazmat cleanup was underway. Westbound drivers were being turned around at Genesee as WB I-70 was closed between Genesee and Chief Hosa.

8:15 p.m. | TRAFFIC ALERT | Colordo State Patrol in Golden says to expect an "extended" closure of Interstate 70 in Golden due to a traffic incident involving eight cars – including two semis that were leaking diesel fuel onto the roadway. A CSP hazmat team was on the way to the scene.

7:45 p.m. | ROAD CONDITIONS | Westbound I-70 is closed due to safety concerns between Exit 256 - Lookout Mountain and Exit 253 - Chief Hosa, per CDOT.

7:29 p.m. | JEFFERSON COUNTY ON ACCIDENT ALERT | CSP Golden has put Jefferson County on accident alert due to multiple crashes along I-70 from Golden to Evergreen, which have forced the closure of the westbound lanes of I-70.

5:36 p.m. | Updated snow forecast

The NWS in Boulder updated its projected snowfall totals in several spots, increasing its confidence in 1-2 inches of snow in some areas and decreasing its confidence of higher snowfall totals.

An early afternoon projection showed a roughly 30% chance of 8 inches of snow in Boulder, 4 inches at the Eisenhower/Johnson Memorial Tunnels and 6 inches in Greeley. By the early evening, the chances for those elevated totals had diminished. But the NWS increased its confidence of 1 inch of snow at DIA to near certain, and a roughly 70% chance of 2 inches at the airport.

5:15 p.m. | ROAD CONDITIONS | Southbound US 287 is closed due to icy conditions and multiple crashes between the Wyoming state line and CO 14, CDOT says. There is no estimated time for the reopening of the southbound lanes.

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