This week’s Satellite Image of the Week shows severe storms firing over Colorado and Wyoming.
Notice first the finely-grained cumulus field to the southeast of the storms. This marks the humid and unstable environment that is forming these storms. Also notice that the anvil is blown to the southeast, indicating strong northwesterly flow. The steering level winds are also from the northwest, meaning these storms in Wyoming are gobbling up these cumulus clouds like Pac Man.
You can also see several faint boundaries in the clouds- one extends from northeastern Colorado and into southwestern Kansas. Another extends from virtually the same place in Colorado then traces the border between Kansas and Nebraska.
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Source: College of DuPage – Meteorology