Met Office Blended Probabilistic Forecast – UK gridded probabilities

This product provides gridded probabilistic weather forecasts. The grid resolution is approximately 2km and covers the UK and parts of Western Europe. It is produced by the Met Office IMPROVER Blended Probabilistic Forecast system. It is available in NetCDF format. Blended Probabilistic Forecast data is derived from the Met Office's operational NWP (Numerical Weather Prediction) ensembles and nowcasts. To give more reliable predictions, these are then blended and calibrated using the IMPROVER pipeline, and verified using spread–skill and reliability checks. This is 1 of 8 Blended Probabilistic Forecast products published by the Met Office on the Registry of Open Data on AWS. Data is available for the Global and UK domains, as gridded and spot (site-specific), and represented as percentiles and probabilities. This info is correct as of April 2026, but some things (like the number of sites, parameters and timesteps) may change in future. How probabilities work Ensemble fo...

本产品提供网格化概率天气预报，网格分辨率约为2公里，覆盖英国及西欧部分区域，由英国气象局（Met Office）IMPROVER混合概率预报系统生成，数据格式为NetCDF。
混合概率预报数据源自英国气象局的业务数值天气预报（Numerical Weather Prediction, NWP）集合预报与临近预报。为获得更可靠的预测结果，上述数据将通过IMPROVER流程进行融合与校准，并通过离散度-技巧（spread-skill）检验与可靠性检验完成验证。
本产品为英国气象局在AWS开放数据注册表（Registry of Open Data on AWS）上发布的8款混合概率预报产品之一。数据覆盖全球与英国两个区域，包含网格化与定点（特定站点）两种形式，以百分位数与概率值两类形式呈现。
本信息截至2026年4月有效，但部分内容（如站点数量、参数与时间步长）未来或有调整。概率预报原理如下：Ensemble fo...