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Category Archives: Meteorology
How dangerous is hot weather?
Hot weather can be dangerous, particularly if the humidity is high as well.
Much of the Upper Midwest had temperatures near or above 90 degrees over the weekend, except along the shorelines of the Great Lakes. Several locations set record high daily temperatures — in Madison, Saturday’s high of 92 degrees tied the record for the day set in 1934. Continue reading
What is the prediction for the 2021 hurricane season?
Tropical cyclones are large, whirling storms that obtain their energy from warm ocean waters. Hurricanes are tropical cyclones that originate in the Atlantic Ocean, Caribbean Sea, Gulf of Mexico or the eastern North Pacific Ocean. Tropical storms have wind speeds … Continue reading
Category: Meteorology, Seasons, Tropical
Comments Off on What is the prediction for the 2021 hurricane season?
Comments Off on What is the prediction for the 2021 hurricane season?
Where does water exist?
Evidence of the presence of water in our atmosphere is ubiquitous.
Water occurs in the Earth’s atmosphere in all three of its phases — solid (snow and ice), liquid (rain and dew) and gas (invisible water vapor). As we begin to emerge from the recent cool spell and really enter spring/summer, we may begin to see more dew on the ground and on the windshields of cars in the morning. Continue reading
How unusual was this cold first half of May?
The first two days of this month had high temperatures of 87 and 84, respectively, and daily average temperatures (the average of the daily high and daily low) that were 15 and 19 degrees above normal.
In the next 12 days, the daily average temperature has been just shy of 6 degrees below normal. In fact, during that nearly two week stretch, nine days have had overnight lows in the 30s, including a streak of eight straight days from May 7 through Friday. The morning low on Tuesday was 30 degrees — notably cold and memorable for most of us, but only the 61st coldest morning in the first half of May in Madison’s history, far behind the all-time lowest of 19 degrees recorded on May 1, 1978. Continue reading
Can space dust affect our atmosphere?
Space contains tons of dust. When dust particles approach Earth, they can be captured by gravity and enter the atmosphere at very high speeds.
Particles with diameters larger than about 2 millimeters undergo very rapid heating through collisions in our atmosphere. As they heat up, they can produce a short-lived trail of light known as “shooting star.” Most dust particles entering the atmosphere are estimated to be much smaller than this and don’t provide a visible trail. Continue reading
