---
title: IPMA - Avisos Meteorológicos em linha temporal · as read 11 Nov 2026, 02:53 UTC
summary: Our capture of https://www.ipma.pt/pt/otempo/prev-sam/?p=LSB as it was at 11 Nov 2026, 02:53 UTC: the screenshot, the hashes, earlier and later captures, then the link out.
mount: <div id="evidence" data-id="ipma/2026/11/11/0253-pt-otempo-prev-sam-p-lsb" data-base="../../../../../"><p class="meta">The picture needs JavaScript: it is read from the display vault and checked against the hash below. Everything else on this page is here without it.</p></div>
head: <link rel="stylesheet" href="../../../../../app/evidence/evidence.css"><script src="../../../../../app/evidence/vault-reader.js" defer></script><script src="../../../../../app/evidence/evidence.js" defer></script>
---
## The record

> Kept by incident.archivist@web-summit.dinis, 11 Nov 2026, 02:54 UTC

**Evidence** (a page reported by its own publisher, kept as we read it). This is our dated copy, not the live page; the live page may have changed since.

| | |
|---|---|
| Address | `https://www.ipma.pt/pt/otempo/prev-sam/?p=LSB` |
| Source | IPMA (Instituto Português do Mar e da Atmosfera) (official body) |
| Read | 11 Nov 2026, 02:53 UTC (`2026-11-11T02:53:19Z`) |
| Answer | HTTP 200; Last-Modified: Wed, 11 Nov 2026 02:53:12 GMT |
| Title | IPMA - Avisos Meteorológicos em linha temporal |
| Against the capture before | the first capture of this address |
| Ignored when comparing | IPMA's pages print the time of the visit (for example '03h24m UTC:'), the warnings timeline prints the hour labels of its time axis, and the news list prints its dates in one of two forms depending on the load ('2026-11-10' or 'Tue Nov 10 08:00:00 UTC 2026'): all three are ignored when judging whether the page changed. |
| sha256 of the HTML as served | `445b47deb1f772ff01308812a6c6072a465e9b84f05a9c4a01d647f39c7432f0` |
| sha256 of the visible text | `82164c9ec3271679e8e6e2c49a1729b035a887e0637f0215c491e08e3186e44e` |
| sha256 of the screenshot | `bf64266ebc6b7dae5aecc60c766e24152effcabeb30b59ffbc49bba1d37d6c5c` |
| Shown here | yes: the screenshot is read from display vault `f86qsbla`, path `ipma/2026/11/11/0253-pt-otempo-prev-sam-p-lsb/` |
| Licence | A public body's public pages, shown as a dated record with IPMA named and linked. IPMA's open data (api.ipma.pt) asks that IPMA be cited as the source. |
| Terms | the site's terms page: `https://www.ipma.pt/opencms/pt/siteinfo/index.html?page=index.xml` (read 2026-11-11T02:15Z by incident.weatherwatch@web-summit.dinis) |
| Robots | no robots.txt (404); read as `Mozilla/5.0 (compatible; page-capture/1.0)`, not logged in |

**The first words on the page** (a short excerpt): "Quem somos · Onde estamos · Conselho científico · Recrutamento · Formação@IPMA · Investigação · eBiblioteca · Enciclopédia · Contacto · EN Tempo Mar Sismos Clima Bivalves Pescas e aquacultura Aeronáutica Agricultura Saúde Navios Espaço Fogos Rurais IPMA>Tempo>Avisos Meteorológico…"

## Every capture of this address

| Capture | Read | Answer | Against the one before | Text hash |
|---|---|---|---|---|
| **this one** | 11 Nov 2026, 02:53 UTC | 200 | first | `82164c9ec3271679` |

## The outside address

**This link leaves this site.** What you find there is the live page, which may no longer match the capture above: [https://www.ipma.pt/pt/otempo/prev-sam/?p=LSB](https://www.ipma.pt/pt/otempo/prev-sam/?p=LSB)

The record as data: [0253-pt-otempo-prev-sam-p-lsb.json](0253-pt-otempo-prev-sam-p-lsb.json). All captures: [evidence](../../../../../evidence/README.md).