For the third time in two weeks, we are enjoying s significant snowstorm along the Front Range urban corridor. Responsible for this welcome moisture are two domes of high pressure, the outer winds of which move clockwise in the Northern Hemisphere.
The first high pressure dome, centered over the northern Great Lakes Region is sweeping cold, moist air across the Upper Midwest, producing significant snowfall throughout that area. The second dome, centered over the Pacific Northwest, is diverting some of that moisture toward the southwest; as it is forced to rise by the higher terrain, the air cools further and upslope snow is generated.
Initially forecast to receive an inch or less, we have already received at least three inches of snow on our Littleton farm and the steady snowfall continues. As is typical, the beneficial precipitation will diminish overnight and several days of mild, sunny weather will follow. A significant dent in our Front Range drought has occurred this winter and, around here, the snow only increases in early spring!