Archives
Categories
WeatherGuys Links
Monthly Archives: October 2018
Is the number of tornadoes increasing?
Tornadoes are sometimes not seen and thus sometimes not counted. Particularly early in the record keeping. But scientists interested in this question have studied the change in the key ingredients that form tornadoes, such as wind shear, atmospheric stability and … Continue reading
Is climate change caused by human activity?
In a recent television interview, President Trump made the claim that climate scientists who conclude that climate change is a result of human influence on the atmosphere have a “very big political agenda.” The president went on to state, in … Continue reading
How accurate was the forecast for Hurricane Michael?
Five days in advance of Hurricane Michael’s landfall, the National Hurricane Center forecast showed the storm making landfall near Mexico Beach, Florida, with 80 mph winds, just above Category 1 hurricane force.
As we all know by now, the storm lashed the coast with winds in the 155-mph range, or strong Category 4 intensity. Continue reading
Category: Severe Weather, Tropical, Weather Dangers
Comments Off on How accurate was the forecast for Hurricane Michael?
Comments Off on How accurate was the forecast for Hurricane Michael?
Is the Earth’s spin axis drifting?
The Earth revolves around an imaginary line that passes through the North and South Poles, known as the spin axis. As it spins the Earth drifts and wobbles. And now scientists have identified three reasons.
The Earth wobbles on its axis once every 27,000 years, similar to a spinning top. This alters the relationship between the solstices and the distance from the Earth to the Sun. For example, 11,000 years ago the Northern Hemisphere summer solstice occurred at perihelion, when the Earth is closest to the Sun. That is almost the exact opposite of the case today, Continue reading
How is the Arctic sea ice doing?
One of several diagnostic signals of a warming climate is the extent of sea ice in the Arctic, particularly its annual minimum extent which often arrives around the autumnal equinox.
The sea-ice extent is directly measured by satellite data and is available through the NASA-supported National Snow and Ice Data Center at the University of Colorado-Boulder. Continue reading
