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Category Archives: Phenomena
Can a snowstorm have lightning?
Yes, and if you were awake late Wednesday night you might have observed lightning and heard thunder with the snowstorm.
It is not a common occurrence, but when lightning and thunder occur during a snowstorm, the event is reported as “thundersnow.” Continue reading
What makes the wind blow?
Southern Wisconsin has certainly experienced some windy days this past week. Wind is defined as the horizontal movement of air from one place to another. Wind exists because of differences in air pressure. Any movement requires a force, and in … Continue reading
Another example of unprecedented weather extremes
Another entry in the category of unprecedented weather extremes comes from the tropical Atlantic basin where, last week, Hurricane Fiona wrought devastation to the Commonwealth of Puerto Rico, still reeling from its assault by Hurricane Maria eerily precisely five years earlier.
Fiona dropped upwards of 30 inches of rain on the south shores of Puerto Rico before heading north into the Atlantic, where it systematically strengthened into a Category 4 hurricane with sustained winds of more than 130 mph. Continue reading
Category: Meteorology, Phenomena, Severe Weather, Tropical
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Does lightning add nitrogen to the soil?
Our bodies need nitrogen to make proteins. The atmosphere’s composition is 78% nitrogen, but the nitrogen in the air is not available to our bodies.
The two atoms in the airborne nitrogen molecule are held together very tightly. For our bodies to process that nitrogen, the two atoms must separate. Continue reading
Category: Meteorology, Phenomena, Severe Weather
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Comments Off on Does lightning add nitrogen to the soil?
When does fog mostly occur in Madison?
Fog can occur anytime of the year, depending on the type of fog. In southern Wisconsin, fog is most frequent in the morning, between about 6 and 8 a.m. Fog is a cloud in contact with the ground, and it … Continue reading
