Saturday, July 5, 2014
Fireworks in Steamboat Springs started ahead of schedule on late Friday afternoon as funnel clouds appeared over the the south part of town around 5:30 pm MDT. These photos were taken on Village Dr, first near Meadow Lane and then about 1/4 mile north near Walton Creek Rd. As the radar loop from Grand Junction in the lower right shows, the storm rapidly gained strength soon after 5:09 pm MDT and was quite strong between 5:28 and 5:48. During this time, rotation was evident in several areas of the cloud base, and it appeared that 2 or 3 shallow funnels briefly formed around this time. Along with favorable wind shear that helped cause the rotation, atmospheric instability was enhanced as the storm formed along a dry-line that was present at the boundary of the moist monsoonal air to our south and some drier air to our north and west that appeared in the afternoon.
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