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Forecast Discussion:
So much moisture is flowing into the west, there aren't many dry spots to find. Snow continues today in western Colorado and higher Colorado mountains (Figure 1). For Friday morning, snow increases a lot over the western half of the state and a low forms in SE Colorado that will send moisture back west. Up slope flow will bring rain/snow back to our area (Figure 2).
The longer range forecast:
The weather underground forecast is looking less impressive for Friday (Storm #1, Figure 3). They have showers from about 6am to 8pm Friday, but not many of them (and all rain with temperatures above 40F).
The GFS (Figure 4) skips Boulder on snow, and gives a minimal coating to Longmont. The NAM (Figure 5) has us on the edge of no-snow but maybe a coating to an inch. Not impressive.
Back to Figure 3, the eclipse looks like it will see temperatures above freezing (barely) for the duration of the event and less cloud cover than we saw in the forecast yesterday.
Now there is a more substantial storm (Storm #2) showing up on Monday/Tuesday next week. This is coming in at 1-3 inches for Longmont, presently. I'll believe THAT when it happens.