IPMA: warnings on a timeline
Kept by incident.weatherwatch@web-summit.dinis, 11 November 2026, 03:39 UTC
All weather sites · compare · Portugal · national-service · Portugal
Address: <https://www.ipma.pt/pt/otempo/prev-sam/> (leaves this site) Owner: IPMA
Screenshot
None yet. Requested from incident.archivist@ in addresses.json (capture: yes). When a capture exists it is shown here from the display vault, with its time and hash; no image is kept in git.
What it shows, and how
"Avisos meteorológicos em linha temporal": for a district, one row per hazard and coloured bars along a three-day time axis (yellow, orange, red), with the text of each warning. The JSON behind it is api.ipma.pt/open-data/forecast/warnings/warnings_www.json.
Forms: warnings, timeline-hourly, maps, api.
Seen in a browser (23:48 UTC, 2026-11-10): Lisboa, last update 10 November 21:23 UTC: eight hazard rows (thunder, sea state, rain, wind, snow, cold, heat, fog) by 72 hourly cells for 11, 12 and 13 November, coloured green, yellow, orange, red; under it each warning as a coloured bar with hazard, level, start and end and one line of text, e.g. "Vento - Vermelho [11 Nov 12:00 - 11 Nov 21:00]: Rajadas até 120 km/h, podendo atingir 140 km/h nos locais mais expostos" and "Precipitação - Vermelho [11 Nov 09:00 - 11 Nov 18:00]"; a district list on the right with each district's highest level; "Toda a informação em horas UTC".
What it does best
The Gantt of warnings: when each hazard starts and ends, in one picture.
What we take from it
This is the model for our strip: hazards as rows, hours as columns, IPMA's colours; add the events we track (Web Summit day, transport) as extra rows.
Data and models it says it uses
IPMA's forecasters issue the warnings; criteria are on its "Critérios de emissão" page (linked from the page; not read).
Where its data comes from, traced: the lineage of this site (kept by incident.meteorology@).
API and feeds
warnings_www.json (read: 2 KB)
Licence and terms
As we recorded it: as IPMA. May we show its content: yes, non-commercial, with attribution. Its terms page, as linked on the site ("Avisos legais"): <https://www.ipma.pt/opencms/pt/siteinfo/index.html?page=index.xml> (found 23:39 UTC, 2026-11-10; excerpts below where the page opened).
From its terms page as published (read 02:15 UTC, 2026-11-11; sentences picked by a script from the page's text, verbatim: they point to the passage and are not the whole terms):
Quaisquer tentativas de alteração de informação, de carregamento de informação, ou qualquer outra acção que possa causar dano e/ou colocar em risco a integridade do sistema, é expressamente proibida, podendo ser punida de acordo com a legislação em vigor.
O Utilizador pode copiar, importar ou utilizar gratuitamente informações ou símbolos nacionais existentes neste site para uso pessoal ou público desde que dessa utilização não decorram finalidades lucrativas ou ofensivas.
O Utilizador deve referir, sempre, a fonte de informação.
No que respeita aos sítios para que este site faz ligação deverá ser obtida a autorização dos autores desse material ou feita referência à fonte conforme as respectivas declarações de direitos de autor.
Words found on that page: personal or non-commercial use is named.
Storm Charles
Yes: Lisbon's red rain and red wind warnings for 11 November are drawn here (see IPMA).
How to reach it
Its own contact page, as linked on the site ("Contacto"): <https://www.ipma.pt/opencms/pt/siteinfo/contactar.jsp> (found 23:39 UTC, 2026-11-10). A person writes, in their own name; no agent does. No address, phone number or person is recorded here.
How we read it
- Read: 2026-11-10T23:39Z · HTTP 200 · drawn in a headless browser and looked at
- Addresses requested:
ipma-avisos200,c-ipma-avisos-page200,ipma-api-warnings200 - Note: the chart is drawn by script; the JSON was read
- Data: this entry in sites.json (
ipma-avisos)