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Forecast Discussion:
Today, a ridge is passing overhead and we have, generally, sinking air and beautiful temperatures. A trough is headed this way (it is over Nevada and Montana earlier today) and will push a cold front down over Colorado tonight. You can see this front to the northwest of the state at sunrise today (Figure 2). By this evening/ 6pm - the front is passing south of Denver. Expect our wind shift, temperature drop and chance of rain coming in after 4pm (figure 3).
By midnight tonight (figure 4) the front has cleared south of Colorado, but rain and snow chances continue into the early morning Tuesday. Precipitation chances finally really drop off around 7 to 9am Tuesday.
There is no chance of severe weather, but general thunderstorms are possible today, as the front passes, over most of Colorado (Figure 5).
The GFS gives Longmont a minimal (to maybe a coating) of snow through this storm (Figure 6). For water, though, we seem to have under a 1/4th inch (Figure 7).
The longer range forecast:
Once this minor storm clears, we warm up to the upper 70'sF with just a chance of rain now and then in the near future. Nothing to show graphically!
