Monday 7 September, Tokyo. The morning came with a warning of torrential rain. Of 322 comments, 54 percent of the vote said it was ordinary rain where they stood, 20 percent blamed JR's reduced trains for the crowding, and 4.5 percent said just work from home

What happened

At 5:21 on the morning of Monday 7 September, tenki.jp, the forecasting site of the Japan Weather Association, published this article on Yahoo! News Japan. Heavy rain would hit the Kanto region — Tokyo and the six prefectures around it — during the morning commute. A linear rainband might form. Up to 60 millimetres an hour, up to 250 millimetres in 24 hours. The village of Nii-jima, in the Izu chain far to the south of Tokyo, was already under a level 5 special warning for landslides, the highest level, and parts of Tokyo, Kanagawa and Chiba were at level 4. The article ends by asking people to check the rain radar and the train information before leaving home.

What the article does not say, the comments do. JR East, the railway that runs most of greater Tokyo's commuter lines, had decided on Sunday to run a reduced service from the first trains on Monday, the Yamanote loop line included. Schools in Tokyo's 23 wards, in Yokohama, Kawasaki and Chiba had told parents on Sunday afternoon and evening that Monday was cancelled. So on Monday morning, people in Kanto were looking at three things before deciding whether to leave the house: the sky, the number of trains, and their children's school.

This is what I thought when I read it. I wrote it in Japanese; here is what I said.

If there is any chance of it, just decide in advance to work from home and stop caring whether it rains or not.

Japanese salarymen, fretting about how the downpour will affect them.

They worked from home during Covid, and now they cannot choose it for themselves. Salarymen in a society of peer pressure.

Covid showed exactly who does not need to be in the office, and still they can only think in ones and zeros.

Honestly, it is pitiful, and you can see exactly why productivity is so low. I decided on Saturday that Monday would be a home day for me.

After reading the draft of this note, I added one more thing.

Make a point of the date and the fact that it was a Monday. In Japan, Monday is when the dead-eyed salarymen pour out in their thousands. So many of them find Monday so bleak that people take their own lives. That is exactly why the frustration builds up. This is the important part.

So I had five readings. If there is a chance, decide in advance to stay home. What people could do during Covid, they can no longer choose for themselves. That is because this is a society of peer pressure. Thinking in ones and zeros is what makes productivity low. And because it was a Monday, the frustration was already there. I went to count where the thread put its votes.

One thing first. I read the 322 comments posted in the two hours and 23 minutes after the article went up, until 7:44. The thread was still growing, and it was still raining. So these numbers are not a result. They are the mood of a Monday morning, before people left the house.

74 to 26 — and 54 percent said it was ordinary rain where they stood

Across the 322 top-level comments, "I relate" was pressed 10,383 times and "hmm" 3,673 times: 74 to 26. "Hmm" won on 33 comments, 10 percent, and 31 comments, another 10 percent, got no "I relate" at all. The top 10 comments took 47 percent of the vote, the top 20 took 63 percent.

The biggest category was not an argument. It was a report. Comments saying that the rain in their own town was ordinary, light, had stopped, had never really started: 131 comments, 5,630 presses, 54 percent of the vote. Comments that named a place or a time: 105, 4,742 presses, 46 percent. The thread had turned into a live map of the rain over Kanto at seven in the morning. The second-placed comment is typical.

769 presses, 7.4 percent of the vote. Northern Meguro: not a drop, six in the morning. Minato ward: an ordinary morning. Shinjuku: drizzle. Saitama: stopped. Yokohama: stopped. Kawasaki: nothing at all. People were posting what they saw from their own window. Mixed in were the other reports: northern Kanto is getting a lot, Chiba is getting worse, Tochigi, Ibaraki and Chiba look heavy on the radar. The fifth-placed comment, at 524, made the point that when a rainband forms upstream, rivers can flood downstream even where it is not raining, which is probably why so many municipalities acted — while adding that rainbands are hard to predict and a uniform response is almost impossible.

A pause here. When this thread said "ordinary rain," it meant its own town at seven in the morning, not the whole of Kanto for the whole day. Comments mentioning Nii-jima and the Izu chain, where the article's level 5 warning applied: 10 comments, 524 presses, 5 percent. The tenth-placed comment, at 245, wrote that the radar showed the heavy rain concentrated on Tokyo's offshore villages, that the central commuter belt looked likely to avoid a rainband for now, and that those villages were under level 5 and the writer was praying for everyone's safety.

The top comment came from Chiba: maybe I should just take a day of paid leave

787 presses, 7.6 percent of the vote. The most-liked comment in the thread was not an opinion. It was one person, at six on a Monday morning, not knowing what to do. The train only runs part of the way. Should someone drive me to a different line? If the rain gets heavy, the driver is in danger. Should I just use a day of leave? 787 people pressed the button on that hesitation.

The Chiba downpour the other week, the top comment says. Earlier this summer, around the mid-August holidays, Chiba prefecture was hit by rain that caused serious damage, and the thread was measuring this morning against it. Comments referring back to it: 13 comments, 2,172 presses, 21 percent. The fourth-placed comment, at 527, said that since then, linear rainbands frighten the writer. The 79th, at 21, said the Chiba disaster had made everyone overreact, and that issuing top-level warnings too often would turn the forecasters into the boy who cried wolf. The same memory was the reason to take the warning seriously and the reason it felt like too much. I counted the thread from the morning after that Chiba downpour, when Toyota published a map of roads its cars had actually driven, in note 0015.

The top comment's last words, paid leave, are the thread's other axis. Comments asking for a separate paid disaster leave, rather than having to use annual leave: 9 comments, 953 presses, 9.2 percent. A school employee who commutes from Yokohama to a school in Kawasaki wrote that staff were left to decide for themselves between coming in and using annual leave, and that a natural-disaster leave would be good on days like this. In Japan, a day at home because of a disaster is, for most people, a day off their own annual leave.

Third place was the Yamanote line: 20 percent said the cuts made it worse

686 presses, 6.6 percent of the vote. Comments mentioning JR's reduced, thinned or suspended services: 47 comments, 2,328 presses, 22 percent. Of those, 31 comments with 2,072 presses, 20 percent, said the cuts had made the trains more crowded, not less, and that with the weather changed, the normal timetable should come back. The eleventh-placed comment, at 212, pointed out that JR had cut services or closed sections across its whole network while the private railways were running normally, and asked whether the Yamanote line really needed to be cut. Comments comparing JR with the private lines: 8 comments, 284 presses, 2.7 percent.

Here is the "ones and zeros." I wrote it about salarymen. The thread applied it to JR's timetable. Deciding the cuts the day before is fine, people wrote, over and over — but when the morning turns out to be nothing much, why can the trains not go back to normal? The same number of people board fewer trains. So the trains are packed. So they run late. The pity in this thread was aimed not at the rain but at the packed carriages of a thinned-out timetable.

Hype, said 28 percent. Right to be careful, said 14 percent

Comments saying the warnings were hype, an overreaction, a fuss over nothing: 79 comments, 2,873 presses, 28 percent. Of those, 28 comments with 1,652 presses, 16 percent, named the media, television or the news, and 26 comments with 608 presses, 6 percent, named the Meteorological Agency or the forecasters. The ninth-placed comment, at 273, said it is the usual pattern: whenever the media make a huge fuss, nothing happens. The fourth, at 527, said media that exaggerate are a problem, that information should be delivered plainly, and that otherwise people get used to the noise and fail to evacuate when it really matters.

The other side had votes too. Comments saying the caution was right even if nothing came of it, that hindsight is cheap, that no damage is good news: 21 comments, 1,435 presses, 14 percent. The fifteenth-placed comment, at 178, said that after Chiba it matters that the public feels a sense of danger and is made to feel it. The eighth, at 300, said the wards that announced closures on Sunday made the right call. Another, at 99, addressed the people complaining that JR had overreacted or been led by the media: the rainband simply did not form over your neighbourhood, level 4 and 5 warnings and evacuation orders were in force, so why can this not end with "no damage, good"?

Comments asking for better forecasts, or saying the forecasts never come true: 22 comments, 1,471 presses, 14 percent. The seventh, at 313, said the rain radar was wrong even in the short term and asked why the live radar could not reflect the clouds actually overhead.

School closures drew the most "hmm"

Comments mentioning school closures: 48 comments, 1,413 presses, 14 percent of the "I relate" vote. Not a large share. But this group drew 1,110 "hmm" — 30 percent of all the "hmm" in the thread. The most divisive thing in this thread was not the rain and not the trains. It was the school closures decided on Sunday.

186 "I relate," 193 "hmm." Thirteenth in the thread, and "hmm" won by seven. Parents saying Sunday's closures had forced them to take the day off: 12 comments, 1,342 presses, 13 percent, with 842 "hmm," 23 percent. A parent in Chiba city wrote that the primary school had announced the closure just after noon on Sunday, that the writer had no choice but to take the day off too, that by six in the morning it was light enough to walk in with an umbrella, and that the day of annual leave was a wasted one. That comment had 50 "I relate" and 223 "hmm," the second-highest "hmm" count in the thread.

The split ran like this. Comments saying the early closures were the right call: 7 comments, 556 presses, 5.4 percent. Comments calling the closures overprotective, or saying the decision should wait until morning, or asking whether this much rain justified it: 16 comments, 597 presses, 5.7 percent — and on that group, 699 "hmm" outnumbered the "I relate." In other words, attack the closures and the "hmm" comes for you. Sigh that the closures cost you a day off, and the votes come half and half. The thread neither condemned nor endorsed a parent's day at home with a child who could not be left alone.

Just work from home, said 4.5 percent

This is the heart of my own reading. Comments using the words remote work, telework or working from home: 18 comments, 465 presses, 4.5 percent. Comments telling other people or their employers to go remote or stay home: 27 comments, 472 presses, 4.5 percent. The largest came twelfth.

194 presses, 92 "hmm." Notice that the reason to work from home has become the crowding, not the rain. The 29th-placed comment, at 62, asked companies to take the lead on days like this and tell staff to work from home or stay put. Comments saying that the company or the employer should be the one to decide: 16 comments, 160 presses, 1.5 percent.

Comments saying the writer was working from home today or taking the day off: 9 comments, 70 presses, 0.7 percent. Comments saying the writer was going in anyway — off I go, everyone, it is a work day: 21 comments, 222 presses, 2.1 percent. The 52nd-placed comment, at 35, said no message had come from work about a day off, so it was the usual commute, and what a gloomy Monday it had turned out to be. One comment, at 6 presses, asked how anyone could take a day off work over drizzle like this.

My line about Covid found one comment. Schools closed and companies on telework would be fine, it said: choose not to go, the way people chose it during Covid to protect lives. It had 6 presses. One more, from someone who had left their company, had 13 "I relate" and 13 "hmm": it described the packed platform, the steaming carriage, the soaked shoes, the company president being driven in, and said that working from home had recently been abolished because communication suffered, and that Japanese people really do work in an abnormal way. Comments about Japanese people, Japanese companies, corporate serfdom or the way Japan works, that one included: 12 comments, 194 presses, 1.9 percent. One at 89 presses observed that the Japanese are certainly diligent. One at 5 said Japanese companies that put attendance before lives should perish. The phrase "peer pressure" appeared in no comment at all.

The comment I shared came 93rd

This is the comment I shared on X.

14 "I relate," 4 "hmm," 93rd in the thread. Four comments had exactly 14, so four share that position. I chose it because its last line says, in the thread's own words, the same thing as the last line of my own reading: if it had really poured, working from home would have been allowed. Which means the decision is not the worker's. It belongs to the strength of the rain, and to the company. This one comment ties together the forecast, JR's cuts, the packed train and remote work in a single sentence. The thread counted them separately: 54 percent, 20 percent, 4.5 percent.

7 September was a Monday

Let me write the date once more. Monday 7 September 2026. The 322 comments in this thread were written by people who had received the news of train cuts and school closures on Sunday, read the 5:21 warning on Monday morning, and posted before 7:44.

Monday is the day of the week on which the most people in Japan take their own lives. The figures are old, but the Ministry of Health, Labour and Welfare's special report on suicide in the 2003 vital statistics gives the average number of suicide deaths per day by weekday: Monday highest, at 80.7 men and 27.3 women, and Saturday lowest, at 53.5 men and 21.2 women. For men, Monday is one and a half times Saturday. On a Monday morning in Japan, the trains are full of salarymen with dead eyes. That is what I believe, and I read the frustration in this thread — 28 percent calling the warnings hype, 20 percent furious at the reduced trains, over a forecast that simply missed — as coming from there.

Inside the thread, four comments with 87 presses, 0.8 percent, used the word Monday. The 52nd-placed comment, at 35, said no message had come from work, so it was the usual commute, and what a gloomy Monday it had turned out to be. The 116th, at 10: nobody has to force themselves in, everyone hates Mondays. The 67th, at 28: agencies issuing warnings to cover themselves and media that do nothing but hype are just a nuisance first thing on a Monday. And the one I shared, 93rd: corporate serfs drained by a packed train from Monday onwards. Three comments mentioned Sunday, all about the closures decided that day or the wish that the rain had spent itself then. The 131st, at 8, said that the thought of a train made more crowded by the cuts made going in depressing.

Fewer than 1 percent named the day. But the way this thread split, 74 to 26, with "hmm" winning on one comment in ten, is rough for a thread about rain, when set beside the 92 to 8 of note 0037. I read that as the mood of a Monday morning. The thread did not say so. So this is not a number. It is my reading.

My reading, checked against the numbers

"If there is a chance, decide in advance to work from home." Comments mentioning remote work, telework or working from home: 18 comments, 465 presses, 4.5 percent. Comments telling people or companies to go remote or stay home: 27 comments, 472 presses, 4.5 percent. The thread's 54 percent looked out of the window before leaving and wrote that it was ordinary rain. They were deciding whether to go out, not whether to work from home, and they were deciding it by that morning's sky.

"What people could do during Covid, they can no longer choose for themselves." Covid came up in 1 comment, 6 presses, 0.1 percent. Working from home having been abolished came up in 1 comment, 13 presses. The thread was not making that comparison.

"A society of peer pressure." The phrase appeared in no comment. Comments about Japanese people, Japanese companies, corporate serfdom or the way Japan works: 12 comments, 194 presses, 1.9 percent.

"Low productivity." The word did not appear. One comment, 4 presses, mentioned national strength and GDP.

"It was a Monday, so the frustration was already there." The word Monday appeared in 4 comments, 87 presses, 0.8 percent, and three comments used the word depressing or gloomy. The thread did not make my argument for me. But I leave the 74 to 26 here as a record of how rough this thread was.

"They can only think in ones and zeros." Here the direction differed. The thread did apply that logic — but to JR, which would not restore a timetable it had cut the day before (20 percent), and to school closures that stood even after the rain stopped (30 percent of all the "hmm"). Comments questioning employers' decisions: 1.5 percent. This thread did not blame the company. It looked at the sky, at the number of trains, and at the children's school, and then it left the house.

For readers abroad: linear rainbands, planned suspensions, and a disaster day on your own leave

A linear rainband — senjō kōsuitai in Japanese — is a line of thunderclouds that keeps forming over the same strip of ground and dumps rain on it for hours. The Meteorological Agency has only in the last few years begun issuing half-day-ahead forecasts under that name. The 31st-placed comment, at 53, said the term had come out of nowhere recently and nobody used to hear it. Rainbands are hard to place. Where one forms and where it does not, the same morning becomes two different mornings. This thread is what that looks like.

A planned suspension or reduced service is when a railway announces, the day before bad weather, that it will stop or thin out trains the next day. The practice spread across Japan from the late 2010s, typhoon by typhoon. This time JR East decided on Sunday to run fewer trains from the first departures on Monday. The 20 percent who objected were objecting to one thing: a timetable decided the day before that would not be put back in the morning. Most private railways ran normally, and the thread noticed the difference.

School closures are decided by municipal boards of education and by individual schools. This time the messages went out on Sunday afternoon and evening. When a Japanese primary school closes, the children are at home, and in a two-earner household one parent stays home with them. That day off usually comes out of the parent's own annual paid leave. Some employers offer disaster leave; many do not. That is why the top comment wondered aloud about taking paid leave, why the parent in Chiba called it a wasted day of leave, and why the school employee from Yokohama wished for a natural-disaster leave.

Shachiku, the word in the comment I shared, means "corporate livestock." It is self-mockery: a person kept by the company, who boards the packed train because they were told to.

For evacuation shelters, I counted the thread on a Kumamoto shelter in note 0001. For the morning after the Chiba downpour that the top comment refers to, when Toyota released a map of the roads its cars had actually managed to drive, see note 0015.

This thread is 322 people at seven o'clock on the morning of Monday 7 September 2026. What the rain did afterwards is not in this note. What is in it: before leaving home on a Monday, people in Japan were looking at the sky, the number of trains, and their children's school — and hardly anyone wrote the name of their employer.