Monthly Archives: September 2011

Why is Fog Usually Seen in the Morning?

A fog is just a cloud at the ground. Fog formation can occur in two ways. First, the air is cooled to the dew point which leads to the formation of fog droplets. When the air temperature is the same as the dew point temperature, condensation occurs on tiny particles floating in the air. . . Continue reading

Category: Meteorology
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How is Smoke from a Wildfire in Minnesota Affecting Wisconsin Weather?

On Tuesday a large part of our state either saw or smelled smoke from a raging wildfire in the Boundary Waters Canoe Area in northern Minnesota. The smoke was particularly easy to detect in the northern parts of Wisconsin . . . Continue reading

Category: Weather Dangers
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How Much Condensed Liquid Water is in a Cubic Mile of Fog?

Fog is composed of tiny water drops, each one with a diameter of about one-one thousandth (0.001) of an inch. They are small and fairly uniform in size. You also would find about one of these drops in each cubic inch of fog. . . Continue reading

Category: Weather Dangers
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Was the Forecast of Irene a Success?

The emergency response and warnings prompted by the approach of Hurricane Irene along the East Coast last week has, sadly but predictably, become a subject of much controversy . . . Continue reading

Category: Tropical
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