【The Factory】Typhoon No. 25 Makes Landfall in Chiba! Complete Defense Protocol for the Pit and Customer Vehicles Against 48 Hours of Heavy Rain and Violent Winds
Man, that was long……. It rained continuously for about 48 hours straight, didn’t it? Still, we made it through this time without any issues, so I’ve gained quite a bit of confidence. If rainfall were 1.2 to 1.5 times heavier than this, we’d probably be fine too……! Hehe.
I think the key was that we implemented solid countermeasures beforehand. That said, there’s definitely a possibility of even more severe typhoons in the future, so I want to turn this experience into lessons learned and apply them to our preparations going forward.
Weather Conditions:A large and extremely powerful “Typhoon No. 25” made landfall and approached closest to Chiba Prefecture. Intermittent record-breaking torrential rain and violent winds lasting 48 hours.
Three-Fold Threats We Face:
Violent Winds: Shutter damage and warping, collisions from flying debris like signage and roof tiles.
48 Hours of Heavy Rain: Softened ground, drainage overflow, risk of pit flooding.
Infrastructure Disruption: Extended blackouts unique to the Boso area, road cutoffs from fallen trees.
Decoboco-Style Typhoon Interception System:
Wind Countermeasures: Installation of reinforcing crossbars on the inside of shutters, complete removal of all debris that could scatter from the perimeter.
Water Countermeasures: Full deployment of removable aluminum flood barriers plus water-absorbing polymer bags, evacuation of all customer motorcycles to the highest level of hydraulic lifts.
Power Countermeasures: Full charge deployment of high-capacity portable power stations and emergency LED floodlights.
Shop Owner’s Note: Just like with maintenance work, typhoon prep is too late if you wait until the storm arrives. We anticipate worst-case scenarios and execute meticulous groundwork 48 hours in advance to meet this fierce challenge head-on!
We installed them in the crawl space and in front of the factory too. At this level of rainfall, water wouldn’t reach flooding levels.
But it’s important to prepare for worst-case scenarios. If water got into the crawl space, it would take forever to dry out.
Blocks lateral rain infiltration too! By reducing the possibility of water intrusion, we eliminate the hassle of cleanup afterward.
Everything comes down to advance preparation.
Protecting the Swing Doors.
Shutters and factory swing doors have large surface areas, so they’re highly vulnerable to wind damage. Positioning a vehicle as a buffer proved very effective.
After that, securing or moving indoors anything outside that might blow away or topple over makes it perfect.
48 Hours of Continuous Rain. The End is the Strongest.
DAY1 9/20 The wind and rain weren’t that strong, so honestly I thought “this isn’t so bad.” The only thing was the constant rain, which was annoying, and“since we’re in typhoon defense mode, we can’t do anything” Everything outside is inside the factory, and the entrance is sealed, so we can’t swap out the bikes on the lift. In times like these, the best thing is to work on organization and process improvements we normally don’t have time for.
We ended up spending quite a bit on improvements over these two days ( ;∀;)
DAY2 9/21 Rain all morning again. It wasn’t particularly alarming, but… In the evening, things suddenly changed and we got hit with extreme winds. That was genuinely shocking. The factory walls and roof were making sounds like they might blow away, and I was on edge the whole time.
Around 9 PM the wind calmed down and we got through the worst. I was relieved that everything turned out okay.
Elevation Matters.
Both our home and factory are elevated one level.
With rice paddies in front, as long as they don’t overflow, water won’t reach either the house or factory. Plus, this land sits about 2 meters higher than the surrounding area, so our safety margin is even greater.
There’s no risk of collapse from behind either.
Though I’ll admit it’s partly luck anyone considering buying land or a house should evaluate it carefully—otherwise you’re headed straight for disaster. You don’t want your newly built home or shop to flood immediately. That said, flooding sometimes happens in areas not marked on hazard maps, so it’s hard to say for sure…
Our home parking area had about 20 cm of standing water. Since we don’t use it anyway, we didn’t implement any countermeasures.
The factory entrance became muddy from the drainage overflow. This needs attention. The drainage is overflowing and some sand from the house is washing away.
The back area was fine with nothing amiss. I was worried about the outdoor unit tipping over…
Cleanup and Patrol
EASY DAM is fantastic because you just drain the water, so it’s an excellent water barrier. A light rinse on the ground makes it perfect!
The collapse zone near our home had progressed a bit… I wish they’d fix it soon, but…they probably won’t do anything until it gets worse.
The route to the factory was muddy. I wouldn’t want to ride a bike through it…
I’d recommend staying away for a few days or the rest of the week(*´ω`*) Anyway, everything is fine so please rest assured
Factory Infrastructure & Extreme Weather Defense.
Subject: Fierce Typhoon No. 25 hits Chiba: 48 hours of torrential rains and severe gales meet total workshop defense. Details: Emergency dispatch from the Decoboco tech bay! A massive and powerful Typhoon No. 25 has made direct landfall on Chiba Prefecture, bringing an unrelenting 48-hour barrage of driving rain and destructive winds. Drawing on hard-learned lessons from past regional storms, we deployed a three-layered defense strategy:
Wind Defense: Reinforcing roll-up shop shutters with heavy interior crossbars to prevent inward blowout under 40m/s gusts, alongside clearing all exterior debris.
Water Defense: Securing modular aluminum flood barriers at shutter tracks and elevating all customer motorcycles to maximum height on locked hydraulic lifts.
Power Resilience: Full standby prep with high-capacity portable power stations and emergency illumination. Verdict: Extreme weather defense is identical to precision mechanical overhaul: zero assumptions, uncompromising prep work, and eliminating risk before impact. Stay indoors and prioritize safety above all else!
【The Factory】Typhoon No. 25 Makes Landfall in Chiba! Complete Defense Protocol for the Pit and Customer Vehicles Against 48 Hours of Heavy Rain and Violent Winds