This content was originally published by the Longmont Observer and is licensed under a Creative Commons license.
Forecast Discussion:
The western storm has crashed into the mountains of the West and has diminished to up-slope snows mainly over western Colorado. Some snow and rain may slip over the Rockies before dying from down-slope warming/sinking (Figure 1). Cold air (the center of which is the high pressure slipping south to our east) is most deeply entrenched east of the Rockies today. We may barely break freezing today.
The longer range forecast:
We stay dry and cool this week. Another front/low passes late in the week, but as you can see in Figure 2, the jet stream is far to the south of us. The bulk of the lift and instability will be down in Arizona and New Mexico. We just get the cold air. Figure 3 shows the expected precipitation at the end of the week and it stretches from AZ to TX and beyond. Sorry, if you were hoping for some good snow around town.