Would you trust a weather forecast made by a machine that had learned how weather systems behaved by reviewing thousands of past weather maps?
His theory, based on years of detailed climate and weather data, became known as the Callendar Effect. Today we call it global warming.
The key ingredients for a storm to undergo bombogenesis are an unstable atmosphere, temperature differences and high-speed winds in the upper atmosphere.
It’s hard to get accurate measurements, but a nationwide network of more than 8,000 volunteers with rulers and specific standards reports after every storm.
The winter solstice is past, but bundle up – January is when winter really arrives in many parts of the Northern Hemisphere.
Extended periods of rain are most likely found in locations where mountains are near oceans.
Scientists are building a pollen forecasting model using meteorology, botany, pollen count numbers and satellite imagery to help people plan ahead.
Catastrophic floods in north-western Europe have shown how badly early warning systems can fail.
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