Huge billowing thunderstorms are commonplace across the Great Plains and often times just to the east of the Rockies. Fueled by tropical moisture flooding northeastward out of the Gulf of Mexico the humid weather provides the moisture needed for the storms the build. The catalyst is chilly air in the high atmosphere that has its origins in the artic regions. That cold air high aloft comes spirting down along the east slopes of the Rockies out of Canada. The swirling and twisting motion in the high atmosphere where they clash is fertile ground for storms. Many times, winds blowing down off the Rockies tend to suppress the biggest storms – but when those winds subside monster storms can form. On August 14, 1890 Thunderstorms with torrential rain and massive hail hit Colorado Springs, Colorado; 3.15” of rain fell in a little over an hour, hail lasted 15 minutes and covered the ground to 6”. The mercury plunged from 75 to 47 degrees in just 4 minutes after the hail began.
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