It is seen at night, and is a common occurrence in Hawaii. The inventor of the telegraph, an instrument that had a great impact on meteorology beginning in the mid 1800s. On this date in 1980, Mount St. Helens erupted in Washington. As the slopes are cooled by radiation, air in contact with them cools also. A health condition caused by the relatively small amount of oxygen in the air at high elevations, resulting in a decreased supply of oxygen to the blood.
Mountains make their own weather.
The 1991 eruption of Mt. Pinatubo in the Philippines was the last volcanic eruption to have an impact on the global climate. The distinctively mushroom-shaped cloud of gas, dust, debris, water droplets and ice crystals that forms in the aftermath of a nuclear explosion. Inc. All rights reserved.