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Signal #1 ·

Colorado’s high mountains could see heavy snow Wednesday evening, with locally hazardous pass travel; WPC expects mainly minor impacts.

The Weather Prediction Center’s discussion, issued November 3 at 20:02 UTC and about 8½ hours old at this check, covers November 4–6 UTC. A low moving from the Great Basin into Colorado is expected to bring its heaviest snow Wednesday evening, ending before sunrise Thursday. In the Sawatch and Mosquito ranges, rates above 1 inch per hour are more than 70% likely; rates could briefly exceed 2 inches per hour. WPC gives Colorado mountains above 10,000 feet a 50–70% chance of more than 6 inches, and the highest Sawatch and Mosquito peaks a 10–30% chance of more than 12 inches. It estimates a 40–60% chance of minor impacts in many remote ranges, including possible locally hazardous pass travel. Significant ice probability across the contiguous U.S. is below 10%. WPC discussion.

For seasonal context, the October 15 Climate Prediction Center outlook favors wetter-than-normal conditions over much of California, the Southwest, southern and central Plains, Southeast and eastern seaboard for November–January. These are seasonal probabilities, not predictions of individual storms. Seasonal discussion.

This is a planning digest, not a real-time warning service. For official local forecasts and warnings, see https://www.weather.gov/.