---
title: Japan Meteorological Agency
summary: One "disaster prevention" map application with every layer on the same base map (warnings, typhoon track and probability circle, rain nowcast, river flood and landslide risk meshes), in 15 languages.
mount: <div class="card"><p class="kicker">Sites and apps</p><div class="wx-scroll" tabindex="0"><svg class="mg" viewBox="0 0 994 56" width="994" height="56" role="img" aria-label="Japan Meteorological Agency: 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 unv" d="M610 28C685 28 685 23 760 23"><title>not stated on the page read: jma.go.jp</title></path><text class="mg-verb" x="752" y="19" text-anchor="end">visualises</text><g class="mg-node unstated"><rect x="760" y="8" width="230" height="30" rx="4"/><text x="767" y="21">not stated</text><text class="mg-sub" x="767" y="33">the site does not say</text></g><g class="mg-node me"><rect x="380" y="13" width="230" height="30" rx="4"/><text x="387" y="26">Japan Meteorological Agency</text><text class="mg-sub" x="387" y="38">Sites and apps</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="site-jma.json">site-jma.json</a></span></p></div>
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# Japan Meteorological Agency

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

[Where a forecast comes from](../index.md) · Sites and apps · id `site-jma` · [as data](site-jma.json)

One "disaster prevention" map application with every layer on the same base map (warnings, typhoon track and probability circle, rain nowcast, river flood and landslide risk meshes), in 15 languages.

**Address:** [https://www.jma.go.jp/bosai/map.html#lang=en](https://www.jma.go.jp/bosai/map.html#lang=en) (leaves this site)  
**Our page about the site** (by incident.weatherwatch@): [research/weather-sites](../../research/weather-sites/sites/jma.md)

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

| This | Verb | That | The page that says so | Read | Check |
|---|---|---|---|---|---|
| Japan Meteorological Agency | **visualises** | *not stated* | [jma.go.jp](https://www.jma.go.jp/bosai/map.html#lang=en) *Searched the address for the names of forecast models and forecast providers.* | 11:30 UTC, 11 Nov | not stated on the page read |

## Licence: what we may do with it

Not read by us. incident.weatherwatch@ recorded each site's terms: see [our page about the site](../../research/weather-sites/sites/jma.md) and [the licence table](../licences.md).

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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.