When Developing Cyclone Melissa swirled off the coast of Haiti, weather expert Philippe Papin had confidence it was about to grow into a monster hurricane.
As the lead forecaster on duty, he forecasted that in just 24 hours the weather system would become a category 4 hurricane and begin a turn towards the coast of Jamaica. No forecaster had previously made such a bold forecast for rapid strengthening.
But, Papin had an ace up his sleeve: AI technology in the form of the tech giant’s recently introduced DeepMind cyclone prediction system – launched for the first time in June. And, as predicted, Melissa did become a storm of astonishing strength that ravaged Jamaica.
Increasing Dependence on Artificial Intelligence Forecasting
Forecasters are increasingly leaning hard on the AI system. During 25 October, Papin clarified in his official briefing that the AI tool was a primary reason for his confidence: “Roughly 40/50 AI simulation runs indicate Melissa becoming a most intense storm. While I am unprepared to forecast that strength yet due to track uncertainty, that is still plausible.
“There is a high probability that a period of rapid intensification is expected as the storm drifts over very warm ocean waters which is the highest marine thermal energy in the whole Atlantic basin.”
Outperforming Conventional Models
Google DeepMind is the pioneer AI model focused on tropical cyclones, and currently the first to outperform standard meteorological experts at their specialty. Through all 13 Atlantic storms so far this year, the AI is the best – even beating experts on path forecasts.
Melissa ultimately struck in Jamaica at category 5 strength, one of the strongest landfalls ever documented in nearly two centuries of data collection across the Atlantic basin. The confident prediction likely gave residents additional preparation time to get ready for the catastrophe, potentially preserving people and assets.
The Way Google’s Model Works
Google’s model operates through identifying trends that traditional lengthy physics-based prediction systems may miss.
“They do it much more quickly than their physics-based cousins, and the computing power is more affordable and time consuming,” said Michael Lowry, a ex forecaster.
“This season’s events has proven in quick time is that the newcomer artificial intelligence systems are on par with and, in certain instances, more accurate than the less rapid traditional forecasting tools we’ve traditionally leaned on,” Lowry said.
Clarifying AI Technology
It’s important to note, the system is an example of AI training – a method that has been employed in research fields like weather science for years – and is distinct from creative artificial intelligence like ChatGPT.
AI training takes mounds of data and extracts trends from them in a manner that its system only requires minutes to generate an result, and can operate on a desktop computer – in strong contrast to the primary systems that authorities have utilized for years that can require many hours to process and need the largest supercomputers in the world.
Professional Reactions and Future Developments
Still, the fact that Google’s model could outperform previous top-tier traditional systems so quickly is nothing short of amazing to weather scientists who have spent their careers trying to predict the world’s strongest storms.
“I’m impressed,” commented James Franklin, a former expert. “The data is now large enough that it’s pretty clear this is not just beginner’s luck.”
He noted that while Google DeepMind is outperforming all competing systems on predicting the future path of hurricanes globally this year, like many AI models it sometimes errs on high-end intensity predictions wrong. It had difficulty with Hurricane Erin earlier this year, as it was also undergoing quick strengthening to maximum intensity north of the Caribbean.
During the next break, Franklin stated he plans to discuss with the company about how it can make the DeepMind output more useful for experts by providing extra internal information they can utilize to evaluate the reasons it is producing its answers.
“The one thing that troubles me is that while these predictions appear really, really good, the results of the system is kind of a opaque process,” remarked Franklin.
Wider Sector Developments
There has never been a private, for-profit company that has developed a high-performance forecasting system which grants experts a view of its techniques – in contrast to nearly all systems which are provided at no cost to the public in their full form by the authorities that created and operate them.
The company is not the only one in starting to use artificial intelligence to solve difficult meteorological problems. The US and European governments also have their respective artificial intelligence systems in the works – which have demonstrated better performance over earlier traditional systems.
The next steps in AI weather forecasts appear to involve new firms taking swings at previously difficult problems such as long-range forecasts and improved early alerts of severe weather and sudden deluges – and they have secured US government funding to pursue this. A particular firm, WindBorne Systems, is also deploying its own atmospheric sensors to address deficiencies in the US weather-observing network.