The storm is past and the cold air is being modified (warmed by the sun) and pushed to the east. High pressure dominates the region (Figure 1).
On Thursday we were some -25°F below normal (Figure 2). By Friday (today) noon, we’ll only be about -15°F below normal. Wow! Heat wave.
The longer range forecast:
Sunday, another shot of cold comes from western Canada and the northern U.S. Rockies. Figure 4 shows the maximum extent of this cold air – it is not extending as far south and is not as impactful to Longmont. That has us about -15°F below normal again. This next cool down drops us from a high in the lower 40’s F on Saturday to right about freezing for Sunday (Figure 5).
The snow chances are pretty minimal, at this time, with this front. They don’t print a snow amount on the weatherunderground site – the GFS gives us a coating to 1 inch Saturday PM into Sunday AM (Figure 6). We probably won’t have to shovel much this time.