Title
The Met Office Makes Leaps in Last Mile Forecast Generation with Amazon Nova
The Met Office Makes Leaps in Last Mile Forecast Generation with Amazon Nova | Case Study | AWS Skip to main content Filter: All English Contact us AWS Mark…
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Title
The Met Office Makes Leaps in Last Mile Forecast Generation with Amazon Nova
The Met Office Makes Leaps in Last Mile Forecast Generation with Amazon Nova | Case Study | AWS Skip to main content Filter: All English Contact us AWS Mark…
Description
The UK's Met Office worked with AWS to prototype automated maritime Shipping Forecast text generation using Amazon Nova Pro and a fine-tuned Nova Lite vision-language model, achieving 62% LLM accuracy for complete forecast generation and 83% gale warning accuracy versus forecaster observations, built in four weeks.
…particularly with the vision language opportunity.” For its LLM, the Met Office used Nova Pro in Amazon Bedrock with maritime-specific prompt engineering to turn gridded data into sophisticated text descriptions and forecasts. For its VLM, it fine-tuned Nova Lite using Amazon SageMaker distributed traini…
…against equivalent human-written and issued forecasts over a three month period demonstrated 62 percent LLM accuracy for complete forecast generation and 52 percent VLM accuracy in data to text conversion across a number of diffe…
…to text conversion across a number of different weather components. Meanwhile, it saw 83 percent gale warning accuracy compared with forecasters’ observations. While already impressive, the team anticipate that this performance may be fur…
…ntegrity, the organization collaborated closely with the AWS Prototyping team. “It took just four weeks from spinning up the environment to the final set of initial experiments. It is hugely impressive what was achieved in that time by leveraging our combin…
Company
Met Office
…n, and free meteorologists to focus on complex weather-related decision-making. About Met Office Founded in 1854, the Met Office is the UK’s meteorological service with a reput…
Country
United Kingdom
…s on complex weather-related decision-making. About Met Office Founded in 1854, the Met Office is the UK’s meteorological service with a reputation for continually pushing the boundaries of scientific, technological, and operational expertise. It provides critical weather and climate data and insights to help public poli…
Industry
Government & Public Sector
…explains Steele. Solution | Automating maritime forecasting in just four weeks As a government agency, the Met Office is trusted to maintain a high bar of accuracy, meaning text generation must meet strict quality and consistency standards, an…
Problem
For key marine warning services such as the Shipping Forecast, expert meteorologists at the Met Office spend approximately 2,920 hours a year manually evaluating vast datasets spanning wind, waves, visibility, and other weather variables across 31 sea areas, then condensing that data into a prescribed text format for broadcast; the Met Office wanted to explore whether AI could augment and automate this textual weather forecast generation as data volumes grow.
…ipt is manually generated. For some of the key marine warning’s services alone, expert meteorologists spend approximately 2,920 hours a year evaluating vast datasets spanning different weather variables, from the winds to waves, visibility, and other weather types across 31 different sea areas. They must then accurately condense data into a prescribed text format for broa…
Solution
Working with the AWS Specialist Prototyping Team over four weeks, the Met Office developed a discovery pathfinder prototype using Amazon Nova Foundation Models to turn raw gridded weather data into readable forecast text. It used Nova Pro in Amazon Bedrock with maritime-specific prompt engineering to convert gridded data into text descriptions and forecasts (an LLM approach via an intermediate text representation), and fine-tuned Nova Lite using Amazon SageMaker distributed training as a vision language model to process hourly weather evolution through visual pattern recognition, resulting in a single simplified workflow that could be customized to other use cases.
…the release of Amazon Nova, particularly with the vision language opportunity.” For its LLM, the Met Office used Nova Pro in Amazon Bedrock with maritime-specific prompt engineering to turn gridded data into sophisticated text descriptions and forecasts. For its VLM, it fine-tuned Nova Lite using Amazon SageMaker distributed trainin…
…eering to turn gridded data into sophisticated text descriptions and forecasts. For its VLM, it fine-tuned Nova Lite using Amazon SageMaker distributed training. By doing so, it could process hourly weather evolution through visual pattern r…
…through visual pattern recognition. Rather than manually producing statements, the resulting prototype was a single simplified workflow that can easily be customized to other use cases. As the first example of custom fine-tuning Amazon Nova for vision capabilities…
Business value
Evaluated with strict word-level comparisons against human-written forecasts over a three-month period, the prototype demonstrated 62 percent LLM accuracy for complete forecast generation, 52 percent VLM accuracy in data-to-text conversion, and 83 percent gale warning accuracy compared with forecasters' observations. The Met Office describes this as an early, significant milestone rather than an operational deployment; further refinement and testing is required before any potential AI-based improvements to the Shipping Forecast can be made operational, but the pathfinder provides a foundation for possible efficiencies across the almost 300 Met Office products and services that involve transforming raw grid data to text.
…rformance, particularly given the exactness of the word-based evaluation used.” Strict word-level comparisons—explicitly counting the exact number of matched words (true positives), missed words (false negatives), extra words (false positives)—against equivalent human-written and issued forecasts over a three month period demonstrated 62 percent LLM accuracy for complete forecast generation and 52 pe…
…eriod demonstrated 62 percent LLM accuracy for complete forecast generation and 52 percent VLM accuracy in data to text conversion across a number of different weather components. Meanwhile, it saw 83 percent gale warning accuracy compared with forecasters’…
…rict quality and consistency standards, and the experiments conducted therefore represent an early (albeit significant) milestone in exploring how AI could be used across its numerous products and services. To innovate rapidly while maintaining integrity, the organization collaborated…
…seful data and intelligence. This project absolutely sits at the core of that.” Further refinement and testing is required before any potential AI-based improvements to the Shipping Forecast can be made operational, but the project demonstrates remarkable potential that could mean improvements…
…its training data set and refining prompts for machine interpretation. Because almost 300 of its current products and services involve transforming raw grid data to text, the Shipping Forecast discovery pathfinder provides a valuable foundation for possible efficiencies and automation across its portfolio. As Steele notes, “The infrastructure and scalable pattern for developing stand…
AI capabilities
Generative AI, Computer Vision
…the Shipping Forecast prototype considered a range of candidate approaches—from leveraging a vision language model (VLM) for meteorological data-to-text conversion, encoding gridded weather data in 24-frame video for direct vision processing,…
…ncoding gridded weather data in 24-frame video for direct vision processing, to using a large language model (LLM) benchmark, that processed data through an intermediate text representation stage prior to…
Technology
Amazon Nova Foundation Models, Amazon Bedrock, Amazon SageMaker
…e organization is using AI to forge a path forward in weather forecasting using Amazon Nova Foundation Models. Benefits large language model (LLM) accuracy 62% vision language model (VLM) a…
…e Aurora Serverless relational database service for PostgreSQL, MySQL, and DSQL Amazon Bedrock The end-to-end platform for building generative AI applications and agents Amaz…
…er prices Single-product pricing Amazon S3 Amazon Bedrock Amazon RDS Amazon EC2 Amazon SageMaker Browse all product pricing Learn Documentation Get detailed technical guides an…
Headline outcome
…th forward in weather forecasting using Amazon Nova Foundation Models. Benefits large language model (LLM) accuracy 62% vision language model (VLM) accuracy 52% gale warning accuracy 83% weeks from c…
Use case type
Content generation
…n shaping its future in collaboration with the AWS Specialist Prototyping Team, it developed a prototype for turning raw data into readable forecasts using Amazon Nova Foundation Models . This discovery pathfinder project is paving the way for traditional weather s…