When Tropical Storm Melissa swirled south of Haiti, weather expert Philippe Papin had confidence it was about to grow into a monster hurricane.
As the lead forecaster on duty, he predicted that in just 24 hours the weather system would become a severe hurricane and begin a turn towards the Jamaican shoreline. No forecaster had previously made such a bold prediction for rapid strengthening.
However, Papin had an ace up his sleeve: artificial intelligence in the guise of the tech giant’s new DeepMind cyclone prediction system – released for the initial occasion in June. And, as predicted, Melissa did become a system of remarkable power that ravaged Jamaica.
Forecasters are heavily relying upon Google DeepMind. During 25 October, Papin explained in his official briefing that the AI tool was a key factor for his certainty: “Approximately 40/50 Google DeepMind ensemble members show Melissa becoming a most intense hurricane. While I am unprepared to predict that intensity at this time due to path variability, that is still plausible.
“It appears likely that a period of quick strengthening will occur as the storm drifts over exceptionally hot ocean waters which represent the highest marine thermal energy in the entire Atlantic basin.”
The AI model is the first AI model focused on hurricanes, and now the initial to beat standard meteorological experts at their own game. 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 intensity, one of the strongest coastal impacts recorded in almost 200 years of record-keeping across the region. The confident prediction probably provided people in Jamaica additional preparation time to get ready for the catastrophe, potentially preserving lives and property.
The AI system works by spotting patterns that conventional lengthy scientific weather models may miss.
“The AI performs much more quickly than their physics-based cousins, and the processing requirements is more affordable and time consuming,” stated Michael Lowry, a ex forecaster.
“What this hurricane season has demonstrated in quick time is that the recent artificial intelligence systems are competitive with and, in certain instances, superior than the less rapid traditional forecasting tools we’ve traditionally leaned on,” Lowry added.
It’s important to note, the system is an example of machine learning – a technique that has been used in data-heavy sciences like meteorology for years – and is not generative AI like ChatGPT.
Machine learning processes mounds of data and extracts trends from them in a such a way that its model only requires minutes to generate an answer, and can do so on a desktop computer – in sharp difference to the primary systems that governments have used for years that can take hours to process and need some of the biggest supercomputers in the world.
Still, the fact that the AI could outperform previous top-tier legacy models so rapidly is nothing short of amazing to meteorologists who have dedicated their lives trying to predict the most intense weather systems.
“It’s astonishing,” commented James Franklin, a retired forecaster. “The sample is sufficient that it’s evident this is not just chance.”
He noted that while the AI is beating all other models on predicting the future path of storms globally this year, similar to other systems it occasionally gets extreme strength forecasts inaccurate. It had difficulty with Hurricane Erin previously, as it was also undergoing quick strengthening to category 5 north of the Caribbean.
In the coming offseason, Franklin stated he intends to discuss with Google about how it can make the DeepMind output even more helpful for forecasters by offering additional under-the-hood data they can utilize to assess the reasons it is coming up with its answers.
“A key concern that nags at me is that while these forecasts seem to be really, really good, the results of the model is essentially a black box,” said Franklin.
Historically, no a private, for-profit company that has developed a high-performance weather model which allows researchers a peek into its techniques – unlike most systems which are offered at no cost to the public in their full form by the governments that created and operate them.
Google is not the only one in adopting AI to address challenging weather forecasting problems. The authorities also have their own artificial intelligence systems in the works – which have demonstrated better performance over earlier non-AI versions.
Future developments in AI weather forecasts appear to involve new firms taking swings at formerly tough-to-solve problems such as long-range forecasts and improved early alerts of severe weather and flash flooding – and they are receiving federal support to pursue this. One company, WindBorne Systems, is also launching its own atmospheric sensors to address deficiencies in the US weather-observing network.
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