The front came through about three hours later than I called for on Friday. We had clouds, winds, and virga (rainfall that evaporates before hitting the ground). Figure 1 shows the position of the front as of Saturday late night (about the time I was setting clocks forward).
Figure 2 is the upper air map for Saturday PM – the red line to our east (pink dot for Longmont) is the upper air feature that brought the front in. The ridge to the west (big blue line) is growing!
The longer range forecast:
This week will be quite warm and dry. Monday will see mid 50’sF. Tuesday upper 60’sF. Wednesday 70’sF. This is the work of the big ridge. Figure 3 is the upper air map for Tuesday night, the ridge is almost overhead.
The deep trough over the eastern Pacific ocean in Figure 3 will replace that ridge by the weekend (see Figure 4 – Saturday night). Some models are now bringing in 2/3’s of an inch of rain Saturday PM through Monday next week. Figure 5 is a zoom-in on the weather for next weekend. This model has about 1/2 of an inch of rain. Note temperatures remain too warm for much in the way of snow. That’s how it looks for now. Tune in again tomorrow!