As Tropical Storm Melissa swirled off the coast of Haiti, meteorologist Philippe Papin felt certain it was about to grow into a monster hurricane.
Serving as lead forecaster on duty, he forecasted that in a single day the weather system would become a category 4 hurricane and begin a turn towards the coast of Jamaica. Not a single expert had previously made this confident forecast for quick intensification.
However, Papin possessed a secret advantage: AI technology in the form of Google’s recently introduced DeepMind hurricane model – released for the first time in June. And, as predicted, Melissa did become a storm of astonishing strength that tore through Jamaica.
Forecasters are heavily relying upon Google DeepMind. During 25 October, Papin explained in his public discussion that Google’s model was a primary reason for his certainty: “Roughly 40/50 Google DeepMind simulation runs show Melissa becoming a Category 5 hurricane. Although I am not ready to forecast that strength at this time given track uncertainty, that remains a possibility.
“It appears likely that a phase of quick strengthening is expected as the system drifts over very warm sea temperatures which is the highest marine thermal energy in the entire Atlantic basin.”
Google DeepMind is the first AI model dedicated to hurricanes, and currently the initial to beat traditional meteorological experts at their specialty. Across all 13 Atlantic storms this season, Google’s model is the best – surpassing human forecasters on track predictions.
The hurricane ultimately struck in Jamaica at category 5 strength, one of the strongest coastal impacts ever documented in nearly two centuries of data collection across the Atlantic basin. The confident prediction probably provided residents additional preparation time to prepare for the disaster, possibly saving lives and property.
Google’s model operates through identifying trends that conventional time-intensive physics-based weather models may miss.
“They do it far faster than their physics-based cousins, and the processing requirements is more affordable and time consuming,” stated Michael Lowry, a former forecaster.
“This season’s events has demonstrated in quick time is that the newcomer artificial intelligence systems are on par with and, in certain instances, more accurate than the less rapid physics-based weather models we’ve relied upon,” he added.
To be sure, Google DeepMind is an instance of machine learning – a method that has been employed in data-heavy sciences like meteorology for years – and is not generative AI like ChatGPT.
AI training takes large datasets and extracts trends from them in a manner that its model only requires minutes to come up with an answer, and can operate on a desktop computer – in strong contrast to the primary systems that governments have utilized for decades that can take hours to process and need some of the biggest high-performance systems in the world.
Still, the fact that Google’s model could outperform previous gold-standard legacy models so quickly is truly remarkable to meteorologists who have spent their careers trying to predict the most intense storms.
“It’s astonishing,” commented James Franklin, a retired expert. “The sample is sufficient that it’s evident this is not a case of beginner’s luck.”
Franklin noted that while Google DeepMind is outperforming all competing systems on forecasting the future path of storms globally this year, like many AI models it sometimes errs on extreme strength forecasts wrong. It struggled with another storm earlier this year, as it was also undergoing rapid intensification to maximum intensity north of the Caribbean.
In the coming offseason, Franklin stated he plans to discuss with the company about how it can enhance the DeepMind output more useful for experts by offering extra under-the-hood data they can use to assess the reasons it is producing its conclusions.
“A key concern that nags at me is that although these predictions appear highly accurate, the output of the system is kind of a black box,” remarked Franklin.
Historically, no a commercial entity that has developed a high-performance weather model which grants experts a view of its methods – unlike nearly all systems which are offered free to the general audience in their full form by the governments that designed and maintain them.
Google is not alone in adopting AI to address difficult weather forecasting problems. The US and European governments are developing their own artificial intelligence systems in the works – which have demonstrated better performance over earlier traditional systems.
The next steps in artificial intelligence predictions appear to involve startup companies tackling formerly difficult problems such as sub-seasonal outlooks and improved early alerts of tornado outbreaks and flash flooding – and they have secured federal support to pursue this. One company, WindBorne Systems, is even launching its proprietary weather balloons to fill the gaps in the national monitoring system.
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