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Category Archives: Meteorology
How severe was the Northern Hemisphere winter this year?
Today is March 1 so the meteorological winter (December-January-February) is over.
The areal extent of air colder than minus 23 degrees at about 1 mile above the ground throughout December through February is one way of comparing the severity of the Northern Hemisphere winter from one year to the next. Continue reading
Category: Climate, Meteorology, Seasons
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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
When was the use of computers for weather prediction first considered?
As we have opined a number of times before in this column, the development of numerical weather prediction (NWP) — the use of computers to mathematically produce weather forecasts — is one of the most unheralded scientific advances of the 20th century.
Coupled with the ubiquitous mobile phones we all use, this revolution has enabled us, at a glance, to get a sense of the coming weather days in advance. Continue reading
Category: History, Meteorology
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