On the Kalamazoo River this weekend, Michigan residents will kayak down the sparkling waters and cast their lines for smallmouth bass. The relaxing summer day will bear little resemblance to July 25, 2010, when a ruptured pipeline spewed a million gallons of crude oil into a nearby creek. Five years and billions of cleanup dollars after the worst inland oil spill in U.S. history, the river is largely revitalized. Resuscitated wetlands hug the river, while three new boat launches and man-made rapids draw paddlers, fishers and weekenders.
a result, the angle of the frontal boundary is not as severe as a cold front and the warm air climbs slowly over the cooler air. This produces layered clouds like stratus and nimbostratus clouds. Far in advance of the front cirrostratus and cirrus clouds form. Warm fronts form clouds that cover a large area and create rain or snow events that
Beneath the supercell, the rotation of the storm is often visible as well (above right). The lowering in the photograph (right) represents the wall cloud. The wall cloud is sometimes a precursor to a tornado. If a tornado were to form, it would usually do so within the wall cloud. Supercells are divided into two main groups: Low precipitation (LP) and High Precipitation (HP). As indicated by their name, the amount of rain and/or hail determines the difference between the two.