earth science

Weathernews LiVE

Weathernews LiVE is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Weathernews LiVE rather than just read about it. In short: Weathernews LiVE (ウェザーニュースLiVE, Uezānyusu LiVE) (WNL) is a Japanese 24-hour live channel owned and operated by Weathernews Inc. (WNI), the largest privately owned weather company in the world.

Key takeaways

Weathernews LiVE belongs to earth science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Weathernews LiVE to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Weathernews LiVE from memory before moving on to harder problems.

Reference excerpt

Weathernews LiVE (ウェザーニュースLiVE, Uezānyusu LiVE) (WNL) is a Japanese 24-hour live channel owned and operated by Weathernews Inc. (WNI), the largest privately owned weather company in the world. WNL started broadcasting 16 April 2018, replacing the original BS Weathernews/WX 24 and SOLiVE 24, a similar streaming service also operated by WNI since 27 April 2009. Though primarily an internet service, as of November 2024 WNL also does simulcasts or inserts some of its programmes in other paid TV or local television channels around Japan.

Programming Weathernews LiVE broadcasts six live programmes of three hours each from 05:00 to 23:00 JST every day; the programmes are routinely divided into 30-minute blocks (around 25 minutes of content and intervals of approximately 5 minutes). The remaining hours are filled with updated weather information graphics and no on-air talent; in case of an emergency, special programming is broadcast and, if necessary, a meteorologist and/or a presenter will provide updates. The channel is focused on weather and meteorological information for Japan, including typhoons, volcanic activity and earthquakes. Most of the content is provided by meteorology professionals by parent company WNI, with weather reports sent by users of the company's mobile app featured during the programming, including guides on how to use some of its features and how to send a report. Some segments, depending on the hour of the day, include the anniversaries of the day, the Japanese seasonal days, weather or Japanese culture-related quizzes, or simply ad lib by the presenters known as casters, who routinely interact with the audience through YouTube or Niconico's chat feature. As of November 2025, WNL broadcasts live on the internet through YouTube, Rakuten Channel and TikTok. It previously streamed on Twitch, Facebook, Twitter, Mildom, LINE Live and Niconico. WNL is home to Weatheroid Type A Airi (nicknamed Ponko), a character based on presenter Airi Yamagishi, who also dubs her voice during her weekly programme on Thursday nights, broadcast since 2014 during the SOLiVE24 era and as of April 2023 preempting the last hour of Weathernews LiVE Moon. The character was introduced in April 2012. In late February 2021, a video where then presenter Saya Hiyama switches from light-hearted banter to an earthquake early warning in a few seconds became a viral phenomenon on internet and gave WNL some renown overseas. The clip, shared by one of dozens of WNL fan channels on YouTube, has more than 28 million views as of April 2022. Another clip of Hiyama posted 12 November 2021 has earned more than 13 million views on YouTube in part because it was featured on the Daily Mail website. Hiyama, who joined WNL in 2018, left the channel on 30 March 2024; her last programme, Evening, reached 23,000 live viewers on YouTube. WNL's YouTube channel reached 1 million subscribers 20 April 2023.

Programmes As of November 2025:

Weathernews LiVE Morning: 05:00 to 08:00 JST Weathernews LiVE Sunshine: 08:00 to 11:00 JST Weathernews LiVE Coffee Time: 11:00 to 14:00 JST Weathernews LiVE Afternoon: 14:00 to 17:00 JST Weathernews LiVE Evening: 17:00 to 20:00 JST Weathernews LiVE Moon: 20:00 to 23:00 JST

TV simulcasts As of February 2025, some WNL programmes are simulcast on:

Over-the-air Mie Prefecture's local station MTV's digital subchannel 072: some segments of Morning (06:00-07:59 block), Sunshine (08:00-08:30 block), Coffee Time (11:40-12:29 block) and Afternoon (15:20-17:00 block) on weekdays. Satellite channel BS Fuji: the first half hour of Weathernews LiVE Morning (referred to as BS Fuji x Weathernews), also broadcast, upscaled, on BS Fuji 4K. Satellite channel BS Yoshimoto: the third half hour of Weathernews LiVE Morning Satellite channel BS TwellV (BS 12): the Sunday 03:00-04:00 JST early morning slot, at this time (pre-dawn hours) WNL shows only graphics of the weather for the following day. South Korean cable channel Ch.W (as 웨더 라이프), during the overnight/early morning 03:00-06:00 JST/KST timeslot.

Personnel

Presenters (casters) As of July 2025:

Airi Yamagishi (debuted 28 April 2009 at SOLiVE Morning) Sayane Egawa (debuted 24 December 2011 at SOLiVE Twilight; on maternity leave from Jan 2020 to Mar 2021 & from May 2023 to July 2024) Ayaka Matsuyuki (debuted 7 April 2014 at SOLiVE Morning; on maternity leave from October 2021 to May 2023 & from July 2025) Yukari Shirai (debuted 7 September 2015 at SOLiVE Morning; on maternity leave from May 2023 to July 2024) Nana Takayama (debuted 19 September 2015 at SOLiVE Coffee Time; on maternity leave from October 2023) Yui Komaki (debuted 18 October 2018 at Weathernews Live 16:00-17:00 block) Mizuki Tokita (debuted 2 December 2021 at Weathernews LiVE Coffee Time (13:00-14:00 block)) Akira Kawabata (on-air meteorologist filling as caster, debuted 20 April 2022 at Weathernews LiVE Afternoon) Riena Kobayashi (debuted 31 August 2022 at Weathernews LiVE Coffee Time (13:00-14:00 block)) Mayu Uozumi (debuted 27 April 2023 at Weathernews LiVE Coffee Time (12:30-14:00 block)) Senna Ogawa (debuted 27 April 2023 at Weathernews LiVE Coffee Time (11:00-12:30 block)) Momoka Aohara (debuted 21 October 2023 at Weathernews LiVE Coffee Time (12:30-14:00 block)) Yuiko Lisa Okamoto (debuted 21 October 2023 at Weathernews LiVE Coffee Time (11:30-12:30 block)) Takafumi Fukuyoshi (Weathernews LiVE producer and former EBC announcer, debuted 7 August 2024 at Weathernews LiVE Afternoon and Weathernews LiVE Evening) Manaha Tanabe (debuted 2 July 2025 at Weathernews LiVE Coffee Time (12:30-14:00 block)) Mao Matsumoto (debuted 2 July 2025 at Weathernews LiVE Coffee Time (11:00-12:30 block))

On-air meteorologists As of April 2026:

Takehisa Yamaguchi Tatsuya Unozawa Tatsuō Yoshino Kunihiro Naitō Akira Kawabata (filling as a presenter since 20 April 2022, he occasionally returns as an on-air meteorologist) Tatsuya Honda Eiichi Iijima Tetsuo Aruga

References

External links Weathernews Live Daily timetable Presenters and meteorologists list

Worked examples

Example 1 — a first encounter with Weathernews LiVE

Start with the simplest possible case. Write down what Weathernews LiVE claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Weathernews LiVE before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Weathernews LiVE ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Weathernews LiVE

In research: Weathernews LiVE appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Weathernews LiVE in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Weathernews LiVE is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2018 establishments in Japan, 2018 in Japanese television, Internet television channels, so understanding it makes those chapters shorter.
In everyday life: Look for Weathernews LiVE outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Weathernews LiVE in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Weathernews LiVE means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Weathernews LiVE out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Weathernews LiVE in simple terms?

Why does Weathernews LiVE matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Weathernews LiVE?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Weathernews LiVE.