This content was originally published by the Longmont Observer and is licensed under a Creative Commons license.
Forecast Discussion:
Our front has pushed through around 5 pm and by tomorrow morning is draped just a bit further south of us, but is still in Colorado (Figure 1). This is being powered by a (positively tilted) trough sliding by over the next day and a half. After the front and up to 11 pm Tuesday, rain showers will be very widely scattered (Figure 3- the HRRR). The weatherunderground.com model has a fairly low chance of precipitation through 6 pm Wednesday with temperatures probably too warm for snow (Figure 4).
The GFS give us a bit of rain (nearby) - Figure 5. The small amounts of snow are as close as Lyons and Boulder - but still it isn't much (Figure 6).
The longer range forecast:
From Figure 4, we climb to the mid 70's F at the end of the week before the next trough moves in (Figure 7 - the red line to our west again). It won't be moving quickly and another trough lurks out in the Pacific - so we cool down and have pretty good rain chances Saturday pm through Tuesday and beyond.
