Science: AI does the weather forecast and gets it right!

The WaPo reports about an interstellar galactic, supermassive black hole breakthrough in weather forecasting. AI is doing it!!:
A new computer model to predict the weather built by Google and powered by artificial intelligence consistently outperforms and is many times faster than government models that have existed for decades and involved hundreds of millions of dollars in investment, according to a study published Tuesday.

The study, published in the journal Science, showed the AI model to be more accurate for forecasts of both day-to-day weather and extreme events, such as hurricanes and intense heat and cold.

Its stellar performance and promising results from other AI models like it may signify the start of a new era for weather prediction, although experts say it doesn’t mean AI is ready to replace all traditional forecasting methods.

Google DeepMind’s AI model, named “GraphCast,” was trained on nearly 40 years of historical data and can make a 10-day forecast at six-hour intervals for locations spread around the globe in less than a minute on a computer the size of a small box. It takes a traditional model an hour or more on a supercomputer the size of a school bus to accomplish the same feat. GraphCast was more accurate than the European model on more than 90 percent of the weather variables evaluated.  
AI models use a different approach. They are first trained to recognize patterns in vast amounts of historical weather data, then generate forecasts by ingesting current conditions and applying what they learned from the historical patterns. The process is much less computationally intensive and can be completed in minutes or even seconds on much smaller computers.

The ability to learn from the growing archives of past weather data is a key advantage of AI models. “This has potential to improve forecast accuracy by capturing patterns and scales in the data which are not easily represented in explicit equations,” the authors, who developed the model, wrote in the study.

GraphCast forecast for Hurricane Lee, which made landfall Sept. 16 in Nova Scotia 
at a strength equivalent to a tropical storm. (Google DeepMind)



By Germaine: Obviously not the weatherperson

Germaine's forecast for tomorrow


Germaine's forecast for the next day

And the following day

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