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The story
On September 20, organizers of “ROCK IN JAPAN FES. 2026” announced that the following day’s (the 21st) performances would be cancelled due to the approach of Typhoon No. 25. They cited a sharp increase in rainfall and strong winds that would make it difficult to ensure safety both inside and outside the venue. The same day also saw the Tokyo Game Show at Makuhari Messe called off, part of a wave of severe-weather event cancellations across the greater Kanto region. On a message board frequented by Hello! Project fans, discussion centered on the status of the ANGERME members who had been scheduled to perform, the potential impact on the following day’s Aichi show, and detailed weather forecasts — though baseless speculation about certain members’ attendance also circulated.
What people said
Notice of Cancellation for September 21 (Mon, national holiday)
Tomorrow, September 21 (Monday, national holiday), rainfall far exceeding today's is forecast to continue all day because of Typhoon No. 25, with strong winds also expected as the typhoon makes its closest approach. For these reasons, we have judged that ensuring safety in and around the venue would be difficult.
Yeah, that's right.
Offshore = company, huh. (context of this one-liner is unclear — possibly a stray copypasta/joke unrelated to the thread topic)
Forest —
Fire — Ise
Mountain — (wordplay on "Furinkazan"/風林火山, the classic "wind, forest, fire, mountain" motto, here mapped to festival names)
Wind-Forest-Fire-Mountain lmaooooo
What if there's a landslide around the "Mountain" one though
Curious how the rain looks on-site.
Today it's running as a special exception, with refunds available.
It's been raining nonstop and it's already looking rough today, so of course tomorrow's cancelled.
Apparently even without an on-site event over there, there's still some chance they'll do something via livestream.
Well, the triumphant homecoming show in Aichi the next day looks fine, so I guess that's something.
Members who were set to perform on the 21st will probably get some kind of preferential treatment, but it's not a done deal.
Lucky Fes actually did go ahead though.
truly symbolic of what this year's been like for Juice=Juice and ANGERME…
https://rijfes.s3.amazonaws.com/2026/img/timetable/0819_YE7ybCkOHs/tt_0921.png
Oh, it overlapped with Ado's slot?
East of Aichi, trains look likely to stop, which is scary.
People west of Aichi will probably be fine though.
I checked the hour-by-hour forecast from Weathernews — headquartered in Kaihin-Makuhari — and tomorrow evening through night is when the rain and wind get worst, so cancelling is the obvious move.
If they don't decide early, a lot of people could end up stranded, so this timing makes sense.
And so, once again today, Juice=Juice gets a little more known to the world.
Can't wait to see how they get "known" via a TV Tokyo show with under 1% ratings.
See, you already know they were on it —
that's already a win right there.
You mean SPARK, right?
OCHA NORMA ("Ocha" = tea, the group's nickname) is on the bill tomorrow, but it'll probably get cancelled too.
Though since the organizers are notoriously sloppy, they might delay the decision and cause a mess for everyone.
You think people who don't watch TV are gonna bother firing up TVer just for this?
It's a garbage app where you can't even skip the ads.
Background and Key Points of the Discussion
ROCK IN JAPAN FESTIVAL is one of Japan’s largest annual outdoor music festivals, held in Hitachinaka City, and single-day cancellations due to severe weather have become fairly common in recent years. The organizers have settled into a routine of closely monitoring weather forecasts for several days ahead and announcing cancellations as soon as venue safety looks doubtful, and this case followed that same pattern. Within the thread, the main points of discussion were the weather, transportation, and the possible knock-on effects for the following day’s Aichi show, while some posts flatly attributed certain members’ absences to “slacking off.” It’s worth noting that this is speculation not based on any official statement — the organizers have not explained the actual reasons for, or confirmed status of, any member’s appearance.
*This article is compiled as an excerpt and summary from the 5ch (Hello! Project) thread “[ROCK IN JAPAN FES. 2026] Notice of Cancellation for September 21 (Mon, Holiday) [ANGERME].”

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