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Monthly Archives: February 2021
When does the last deep cold spell of the winter usually come?
As we all work to recover from our recent cold spell, the natural question is: Are we done with bitter cold for the winter?
If we use an overnight low temperature at or below zero as the definition of a cold spell, then 41 of the 81 winters since 1939-40 have seen a cold spell after Feb. 22 — that’s 50.6% of the time. In fact, in 1982 the last zero-degree or colder night was not until April 2, the latest date in the last 81 years. Continue reading
Category: Climate, Seasons, Severe Weather
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How is the ice cover on the Great Lakes?
Until this recent frigid arctic air outbreak, the Great Lakes were experiencing one of the mildest winters on record National Oceanic and Atmospheric Administration (NOAA) monitors and reports on the ice coverage of the Great Lakes. NOAA reports total coverage … Continue reading
Category: Climate, Meteorology, Phenomena, Seasons, Uncategorized
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What is Madison’s longest stretch of frigid temperatures?
After a relatively mild start, this winter has suddenly turned a bit more menacing.
With last Thursday’s 3.5 inches of snow, Madison officially moved above its seasonal average snowfall for the first time all winter. We have received 36 inches, while the average to date is about 33 inches. Continue reading
Category: Meteorology, Severe Weather, Weather Dangers
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What is the status of Earth’s ice?
The amount of ice covering Earth varies from year to year, but over a few decades, trends emerge.
A recent analysis of satellite observations from the European Space Agency clearly shows the amount of ice on earth is decreasing. Those measurements indicate that the amount of ice, in the form of ice sheets on land, mountain glaciers and sea ice, is decreasing. Continue reading
