---
title: Met Office Unified Model
summary: The United Kingdom's model: one code for global and for the kilometre-scale UKV forecasts.
mount: <div class="card"><p class="kicker">Models</p><div class="wx-scroll" tabindex="0"><svg class="mg" viewBox="0 0 994 176" width="994" height="176" role="img" aria-label="Met Office Unified Model: what it is connected to"><style>.mg text{font:12px var(--sans);fill:var(--ink)}.mg .mg-sub,.mg .mg-verb{font-size:10px;fill:var(--ink-2)}.mg-node rect{fill:var(--surface);stroke:var(--line-2)}.mg-node.me rect{stroke:var(--focus);stroke-width:2}.mg-node.unstated rect{stroke-dasharray:2 3;fill:var(--paper)}a.mg-node:hover rect,a.mg-node:focus rect{stroke:var(--focus);stroke-width:2}.mg-edge{fill:none;stroke:var(--ink-2);stroke-opacity:.55;stroke-width:1}.mg-edge.unv{stroke-dasharray:5 4}</style><path class="mg-edge" d="M232 23C306 23 306 88 380 88"><title>stated on the page: open-meteo.com</title></path><text class="mg-verb" x="240" y="19" text-anchor="start">redistributes</text><a class="mg-node " href="data-open-meteo.html"><rect x="2" y="8" width="230" height="30" rx="4"/><text x="9" y="21">Open-Meteo</text><text class="mg-sub" x="9" y="33">Open data and APIs</text></a><path class="mg-edge" d="M232 63C306 63 306 88 380 88"><title>stated on the page: metoffice.gov.uk</title></path><text class="mg-verb" x="240" y="59" text-anchor="start">runs</text><a class="mg-node " href="body-metoffice.html"><rect x="2" y="48" width="230" height="30" rx="4"/><text x="9" y="61">Met Office</text><text class="mg-sub" x="9" y="73">Bodies</text></a><path class="mg-edge" d="M232 103C306 103 306 88 380 88"><title>stated on the page: meteopt.com</title></path><text class="mg-verb" x="240" y="99" text-anchor="start">visualises</text><a class="mg-node " href="site-meteopt.html"><rect x="2" y="88" width="230" height="30" rx="4"/><text x="9" y="101">MeteoPT</text><text class="mg-sub" x="9" y="113">Sites and apps</text></a><path class="mg-edge" d="M232 143C306 143 306 88 380 88"><title>stated on the page: nhc.noaa.gov</title></path><text class="mg-verb" x="240" y="139" text-anchor="start">warns from</text><a class="mg-node " href="svc-nhc.html"><rect x="2" y="128" width="230" height="30" rx="4"/><text x="9" y="141">US National Hurricane Center</text><text class="mg-sub" x="9" y="153">Warning services</text></a><g class="mg-node me"><rect x="380" y="73" width="230" height="30" rx="4"/><text x="387" y="86">Met Office Unified Model</text><text class="mg-sub" x="387" y="98">Models</text></g></svg></div><p class="wx-legend meta">Left: what points at it. Right: what it points at. Each line carries its verb; a dashed line was not confirmed on the page cited, or the site does not say; the table below gives the page and the time read for each. <span class="prov">From <a href="model-ukmo-um.json">model-ukmo-um.json</a></span></p></div>
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# Met Office Unified Model

> Kept by incident.meteorology@web-summit.dinis, 11 November 2026, 11:36 UTC

[Where a forecast comes from](../index.md) · Models · id `model-ukmo-um` · [as data](model-ukmo-um.json)

The United Kingdom's model: one code for global and for the kilometre-scale UKV forecasts.

**Address:** [https://www.metoffice.gov.uk/research/approach/modelling-systems/unified-model/weather-forecasting](https://www.metoffice.gov.uk/research/approach/modelling-systems/unified-model/weather-forecasting) (leaves this site)

## What it is connected to, and who says so

| This | Verb | That | The page that says so | Read | Check |
|---|---|---|---|---|---|
| Met Office Unified Model | **redistributed by** | [Open-Meteo](data-open-meteo.md) | [open-meteo.com](https://open-meteo.com/en/docs/ukmo-api): "UK Met Office API / Open-Meteo.com Open-Meteo Home Features Pricing API Docs Animations GitHub X Toggle theme UK Met Office API Weather forecasts from the United Kingdom's" | 11:29 UTC, 11 Nov | stated on the page |
| Met Office Unified Model | **run by** | [Met Office](body-metoffice.md) | [metoffice.gov.uk](https://www.metoffice.gov.uk/research/approach/modelling-systems/unified-model/weather-forecasting): "Regional model evaluation and development Library Numerical weather prediction models The Met Office uses the Unified Model as part of several operational Numerical Weather Prediction (NWP) systems to support the product" | 11:29 UTC, 11 Nov | stated on the page |
| Met Office Unified Model | **visualised by** | [MeteoPT](site-meteopt.md) | [meteopt.com](https://www.meteopt.com/): "Meteorologia Português Español English menu_home menu_forum menu_models menu_global GFS ECMWF AIGFS ECMWF-AIFS UKMO ICON ARPÈGE menu_comparator menu_ensemble GEFS ECMWF ENS menu_observation menu_temp menu_sat menu_sst me" *The models menu of the community's home page.* | 11:30 UTC, 11 Nov | stated on the page |
| Met Office Unified Model | **informs warning by** | [US National Hurricane Center](svc-nhc.md) | [nhc.noaa.gov](https://www.nhc.noaa.gov/modelsummary.shtml): "*UKM/UKMI/UKM2 U.K. Met Office Global Model Grid point (~10 km) 70 Hybrid Sigma-pressure 4D-VAR Ensemble Hybrid UKMET 12 hr (144 hr) 00/12 UTC Track, intensity, wind radii CMC/CMCI/CMC2 Canadian Deterministic Prediction " | 11:30 UTC, 11 Nov | stated on the page |

## Licence: what we may do with it

**Met Office (UK)**: Open Government Licence v3.0 for website material; data products under their own terms ([metoffice.gov.uk](https://www.metoffice.gov.uk/policies/legal), read 11:30 UTC, 11 Nov, stated on the page).

| Read | Store | Show | Transform | Attribution |
|---|---|---|---|---|
| yes | yes for OGL material | yes, with attribution | yes for OGL material; unclear for DataHub products | "Contains public sector information licensed under the Open Government Licence v3.0", Met Office named. |

The model data through Weather DataHub needs a key and has its own terms: not read.


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Not a warning service: this page explains where data comes from. For warnings follow [IPMA](https://www.ipma.pt/pt/otempo/prev-sam/) and ANEPC.