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Category Archives: History
How did it ever get so cold on Jan. 30, 1951?
On the morning of Jan. 30, 1951, the temperature in Madison fell to its all-time record low of minus 37 degrees.
It is difficult to put that amazing record low in perspective. Consider that the coldest morning of this winter season was less than a week ago, when the temperature Wednesday dropped to minus 18 — a full 19 degrees warmer than the all-time record. Continue reading
Category: History, Seasons, Severe Weather
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Is permafrost permanent?
Permafrost is ground that has a temperature below freezing for at least two consecutive years.
Permafrost varies in thickness from less than a couple of feet to more than 4,000 feet thick. Permafrost is mostly located in polar regions, although it also occurs in some high mountains where it is called alpine permafrost. Much of the permafrost in Alaska is tens of thousands of years old. Continue reading
What impact did Sputnik have on weather monitoring and predictions?
Sixty-four years ago the Soviet Union launched Sputnik, the first artificial satellite. This was not welcome news in the United States as it confirmed that the Soviets were well ahead of us in the development of rocket technology. In fact, … Continue reading
How often does New England deal with hurricanes?
New England dealt with Tropical Storm Henri over the past weekend — nearly the first hurricane to make landfall in New England in 30 years.
As it turns out, that long interval between landfalling hurricanes in that region is unusually long. Continue reading
Category: History, Meteorology, Severe Weather, Tropical
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Why do we have a new normal in weather?
The National Ocean and Atmosphere Administration’s National Climatic Data Center (or NCDC) calculates the average weather conditions over a 30-year period for more than 7,500 locations in the United States.
A reliable estimate of an average requires at least 30 years. These 30-year averages are referred to as the U.S. Climate Normal. They provide a baseline that allows everyone to compare a location’s current weather to the average weather that location would expect to see — whether a particular day’s temperature is cooler or warmer than normal, or if a particular month is wetter than normal. Continue reading
