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Winter Weather Advisory

◍ South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet · USA · updated 11/4/2026, 5:44:00 AM

⏱ In effect until 3:00 PM UTC-7

Severity score

65/100

Confidence

High

Why this matters

* WHAT...Snow expected. Total snow accumulations between 3 and 10 inches with localized higher amounts possible for the Mosquito Range. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, and South Park. * WHEN...From 2 PM Wednesday to 2 AM MST Thursday. * IMPACTS...Travel could be difficult. Roads will become slippery in spots, including for the US 285 corridor.

Key stats

Severity

Moderate

Certainty

Likely

Urgency

Expected

Severity over time

Timeline

Winter Weather Advisory
11/4/2026, 5:44:00 AM
Winter Weather Advisory issued November 3 at 10:44PM MST until November 5 at 2:00AM MST by NWS Denver CO

Sources & attribution

OfficialNWS NWS Denver COupdated 11/4/2026, 5:44:00 AM

OfficialNWS NWS Pueblo COupdated 11/4/2026, 4:36:00 AM

OfficialNWS NWS Grand Junction COupdated 11/4/2026, 4:16:00 AM

OfficialNWS NWS Fairbanks AKupdated 11/3/2026, 5:36:00 PM

⚠This is an informational severity score, not an official warning. Follow guidance from NWS/NOAA, FEMA (ready.gov), and local emergency management.