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Now that the traditional winter season (December, January, February) is over, we can consider how this season stacked up against the preceding 69 winters in terms of its hemispheric intensity. One way to measure this intensity is to consider the … Continue reading
An atmospheric river is a term used to describe a relatively narrow region in the atmosphere that transports water vapor outside of the tropics northward. They are typically a few thousand miles long and a hundred miles wide. There can … Continue reading
It’s no secret we have had some amazingly warm weather the past few days. After reaching 60 Fahrenheit Friday February 17, the temperature soared to 62 F Saturday in Madison, breaking the previous record for the date (57 F) set … Continue reading
The observational evidence that the Earth is warming is overwhelming and unmistakable.
Surface observations of temperature over land and ocean have shown that all but one of the 15 warmest years on record have occurred since 2000. the average length of the ice season on a collection of widely distributed Northern Hemisphere lakes, each with at least 150 years of continuous record, has decreased by over two weeks. The areal extent of the Northern Hemisphere’s wintertime cold pool has systematically shrunk in the last two winters recording the smallest seasonal average cold pool areas since records began in 1948-1949. Continue reading
Aircraft avoid thunderstorms to avoid potential threats or dangers. But encountering severe weather occasionally happens.
Jet aircraft carry weather radars to detect and thus avoid the violent updrafts of storms. These updrafts have strong, turbulent winds and can carry hail. You probably have experiences with hail falling on the ground, but hail can also cause damage to planes flying at 10,000 or even 30,000 feet. Continue reading