---
title: IPMA's weather warnings (avisos meteorológicos)
summary: Yellow, orange and red warnings by district and by hazard, issued by IPMA. The primary source of this site's headline.
mount: <div class="card"><p class="kicker">Warning services</p><div class="wx-scroll" tabindex="0"><svg class="mg" viewBox="0 0 994 216" width="994" height="216" role="img" aria-label="IPMA&#39;s weather warnings (avisos meteorológicos): 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 23 306 108 380 108"><title>stated on the page: eumetnet.eu</title></path><text class="mg-verb" x="240" y="19" text-anchor="start">aggregates</text><a class="mg-node " href="svc-meteoalarm.html"><rect x="2" y="8" width="230" height="30" rx="4"/><text x="9" y="21">MeteoAlarm</text><text class="mg-sub" x="9" y="33">Warning services</text></a><path class="mg-edge" d="M232 63C306 63 306 108 380 108"><title>stated on the page: severeweather.wmo.int</title></path><text class="mg-verb" x="240" y="59" text-anchor="start">aggregates</text><a class="mg-node " href="svc-wmo-swic.html"><rect x="2" y="48" width="230" height="30" rx="4"/><text x="9" y="61">WMO Severe Weather Information Cent…</text><text class="mg-sub" x="9" y="73">Warning services</text></a><path class="mg-edge" d="M232 103C306 103 306 108 380 108"><title>stated on the page: ipma.pt</title></path><text class="mg-verb" x="240" y="99" text-anchor="start">issues</text><a class="mg-node " href="body-ipma.html"><rect x="2" y="88" width="230" height="30" rx="4"/><text x="9" y="101">IPMA</text><text class="mg-sub" x="9" y="113">Bodies</text></a><path class="mg-edge" d="M232 143C306 143 306 108 380 108"><title>stated on the page: ipma.pt</title></path><text class="mg-verb" x="240" y="139" text-anchor="start">visualises</text><a class="mg-node " href="site-ipma.html"><rect x="2" y="128" width="230" height="30" rx="4"/><text x="9" y="141">IPMA</text><text class="mg-sub" x="9" y="153">Sites and apps</text></a><path class="mg-edge" d="M232 183C306 183 306 108 380 108"><title>stated on the page: ipma.pt</title></path><text class="mg-verb" x="240" y="179" text-anchor="start">visualises</text><a class="mg-node " href="site-ipma-avisos.html"><rect x="2" y="168" width="230" height="30" rx="4"/><text x="9" y="181">IPMA: warnings on a timeline</text><text class="mg-sub" x="9" y="193">Sites and apps</text></a><path class="mg-edge unv" d="M610 108C685 108 685 103 760 103"><title>not stated on the page read: ipma.pt</title></path><text class="mg-verb" x="752" y="99" text-anchor="end">warns from</text><g class="mg-node unstated"><rect x="760" y="88" width="230" height="30" rx="4"/><text x="767" y="101">not stated</text><text class="mg-sub" x="767" y="113">the site does not say</text></g><g class="mg-node me"><rect x="380" y="93" width="230" height="30" rx="4"/><text x="387" y="106">IPMA&#39;s weather warnings (avisos met…</text><text class="mg-sub" x="387" y="118">Warning services</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="svc-ipma-warnings.json">svc-ipma-warnings.json</a></span></p></div>
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# IPMA's weather warnings (avisos meteorológicos)

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

[Where a forecast comes from](../index.md) · Warning services · id `svc-ipma-warnings` · [as data](svc-ipma-warnings.json)

Yellow, orange and red warnings by district and by hazard, issued by IPMA. The primary source of this site's headline.

**Address:** [https://www.ipma.pt/pt/otempo/prev-sam/](https://www.ipma.pt/pt/otempo/prev-sam/) (leaves this site)  
**Our page about the site** (by incident.weatherwatch@): [research/weather-sites](../../research/weather-sites/sites/ipma-avisos.md)

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

| This | Verb | That | The page that says so | Read | Check |
|---|---|---|---|---|---|
| IPMA's weather warnings (avisos meteorológicos) | **warns from** | *not stated* | [ipma.pt](https://www.ipma.pt/pt/enciclopedia/otempo/sam/index.html) *IPMA's page on its warning system gives the criteria (thresholds by hazard and district) and not the models behind a warning.* | 11:28 UTC, 11 Nov | not stated on the page read |
| IPMA's weather warnings (avisos meteorológicos) | **aggregated by** | [MeteoAlarm](svc-meteoalarm.md) | [eumetnet.eu](https://www.eumetnet.eu/): "this initiative. More details can be found here: (link) METEOALARM Website 38 European National Meteorological Services contribute to the consistent visualisation of weather awareness information, thereby ensuring cohere" *EUMETNET's own description of MeteoAlarm; which service feeds which country's feed is at feeds.meteoalarm.org (mapped by incident.sources@).* | 11:28 UTC, 11 Nov | stated on the page |
| IPMA's weather warnings (avisos meteorológicos) | **aggregated by** | [WMO Severe Weather Information Centre](svc-wmo-swic.md) | [severeweather.wmo.int](https://severeweather.wmo.int/): "Severe Weather Information Centre 3.0 Severe Weather Information Centre 3.0 A Core Component of the WMO Global Multi-hazard Alert System (GMAS) Framework Supporting UN Early" | 11:28 UTC, 11 Nov | stated on the page |
| IPMA's weather warnings (avisos meteorológicos) | **issued by** | [IPMA](body-ipma.md) | [ipma.pt](https://www.ipma.pt/pt/enciclopedia/otempo/sam/index.html): "Enciclopédia ipma --> / Contacto / EN Tempo Previsão significativa Previsão 10 dias e horária Previsão descritiva Avisos Meteorológicos Cartas meteorológicas Perfis verticais Imagens satélite Imagens radar Descargas elét" | 11:28 UTC, 11 Nov | stated on the page |
| IPMA's weather warnings (avisos meteorológicos) | **visualised by** | [IPMA](site-ipma.md) | [ipma.pt](https://www.ipma.pt/pt/otempo/prev-sam/): "IPMA - Avisos Meteorol gicos em linha temporal Quem somos / Onde estamos / Conselho científico / Recrutamento / Formação @ IPMA / Investigação / e Biblioteca / Enciclopédia ipma" | 11:29 UTC, 11 Nov | stated on the page |
| IPMA's weather warnings (avisos meteorológicos) | **visualised by** | [IPMA: warnings on a timeline](site-ipma-avisos.md) | [ipma.pt](https://www.ipma.pt/pt/otempo/prev-sam/): "IPMA - Avisos Meteorol gicos em linha temporal Quem somos / Onde estamos / Conselho científico / Recrutamento / Formação @ IPMA / Investigação / e Biblioteca / Enciclopédia ipma" | 11:29 UTC, 11 Nov | stated on the page |

## Licence: what we may do with it

**IPMA open data (api.ipma.pt)**: IPMA's own terms on api.ipma.pt: personal or public use, never for profit or offence, the source always named ([api.ipma.pt](https://api.ipma.pt/), read 11:28 UTC, 11 Nov, stated on the page).

| Read | Store | Show | Transform | Attribution |
|---|---|---|---|---|
| yes | unclear | yes, non-profit, with the source named | unclear | "Fonte: IPMA" on every use. |

The terms speak of using the information, not of storing or changing it: silent on both, so "unclear". No profit-making purpose. The full reading is incident.ipma@'s (sources/ipma/).


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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.