When Tropical Storm Melissa swirled off the coast of Haiti, weather expert Philippe Papin felt certain it would soon escalate to a monster hurricane.
Serving as lead forecaster on duty, he predicted that in just 24 hours the storm would become a category 4 hurricane and begin a turn towards the Jamaican shoreline. Not a single expert had ever issued such a bold prediction for quick intensification.
However, Papin had an ace up his sleeve: artificial intelligence in the form of Google’s recently introduced DeepMind cyclone prediction system – released for the initial occasion in June. True to the forecast, Melissa did become a system of remarkable power that ravaged Jamaica.
Meteorologists are heavily relying upon the AI system. During 25 October, Papin clarified in his public discussion that Google’s model was a key factor for his confidence: “Roughly 40/50 AI ensemble members show Melissa becoming a most intense storm. While I am not ready to forecast that strength at this time given path variability, that remains a possibility.
“There is a high probability that a phase of quick strengthening is expected as the system drifts over very warm sea temperatures which is the most extreme oceanic heat content in the entire Atlantic basin.”
The AI model is the first AI model dedicated to tropical cyclones, and currently the first to outperform traditional weather forecasters at their specialty. Through all 13 Atlantic storms this season, the AI is top-performing – even beating human forecasters on path forecasts.
The hurricane eventually made landfall in Jamaica at maximum intensity, one of the strongest landfalls recorded in nearly two centuries of record-keeping across the region. Papin’s bold forecast likely gave residents extra time to get ready for the catastrophe, potentially preserving lives and property.
Google’s model works by identifying trends that traditional time-intensive physics-based weather models may overlook.
“The AI performs far faster than their traditional counterparts, and the computing power is more affordable and demanding,” said Michael Lowry, a former forecaster.
“What this hurricane season has proven in short order is that the newcomer AI weather models are on par with and, in some cases, more accurate than the less rapid traditional weather models we’ve relied upon,” he said.
To be sure, the system is an example of AI training – a technique that has been employed in research fields like weather science for a long time – and is distinct from generative AI like ChatGPT.
AI training processes large datasets and extracts trends from them in a manner that its system only requires minutes to come up with 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 run and require the largest high-performance systems in the world.
Still, the reality that the AI could exceed previous top-tier legacy models so quickly is truly remarkable to weather scientists who have dedicated their lives trying to forecast the most intense storms.
“It’s astonishing,” commented James Franklin, a retired expert. “The data is sufficient that it’s pretty clear this is not a case of chance.”
He said that although Google DeepMind is beating all competing systems on predicting the trajectory of hurricanes globally this year, like many AI models it sometimes errs on extreme strength forecasts inaccurate. It struggled with another storm previously, as it was also undergoing quick strengthening to maximum intensity above the Caribbean.
During the next break, Franklin said he plans to talk with the company about how it can make the DeepMind output more useful for experts by providing extra under-the-hood data they can utilize to evaluate the reasons it is producing its answers.
“A key concern that troubles me is that while these predictions seem to be really, really good, the results of the system is kind of a black box,” remarked Franklin.
Historically, no a commercial entity that has produced a high-performance forecasting system which allows researchers a view of its techniques – in contrast to nearly all other models which are provided free to the general audience in their entirety by the governments that created and operate them.
Google is not alone in adopting artificial intelligence to address difficult weather forecasting problems. The US and European governments are developing their respective artificial intelligence systems in the works – which have demonstrated better performance over earlier traditional systems.
Future developments in artificial intelligence predictions appear to involve new firms taking swings at previously difficult problems such as long-range forecasts and improved advance warnings of severe weather and sudden deluges – and they have secured federal support to pursue this. A particular firm, WindBorne Systems, is also launching its own atmospheric sensors to address deficiencies in the national monitoring system.
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