Typhoon Update Jangmi / Domeng in the Philippine Sea moving towards Southern Japan

Added: 2026-06-01

[00:00:00]Tropical Storm Jungi has officially entered the Philippine area of responsibility. So, it's been given that Philippine name doang, but it is staying well towards the east of that country and actually going to have a big impact on not only southwestern Japan, but the extended forecast brings it into the Kyushu, Shakoku, and even over towards the Tokyo area there in central Honshu as we look ahead through this upcoming week. Behind it, an increase in that monsunal flow, increasing showers indirectly across the Philippines. Let's talk about what we have right now. And this is that classic monsunal gy setup.

[00:00:32]I've been talking about this for about a week and a half. If you look back at the video, saying that we're probably going to have a donut shape with this storm system versus a central type core, at least as it's out here in the Philippine Sea. And you can see that there's a low-level center right in here. And you have this broad kind of doughut wrapping around. And this is because it's tapping into that monsunal flow, getting it this big broad view. So we have been seeing continued showers across parts of Palao and Yap Mindanao and even that inflow increasing afternoon showers here there into region one across the Cordela Mountains and yes also into the Metro Manila area on your Thursday. Heading into Friday very similar setup still across the Philippines due to that enhanced flow and then it's really going to work its way towards the north as we go out through Saturday and Sunday increasing showers from Bayas and also into Manila. It's going to become a little bit more consistent. But let's talk about Naha, Okinawa, the southern Japanese islands, and what we're going to be seeing here. These are your times local here for Okinawa by Monday morning. Already seeing those outer rainbands. Probably already going to be in core one for our military friends out here. Remember, you go through those core systems. Three is 48 hours ahead of time is 12 or core 2 is basically you about 12 hours before lockdown. And core one, you can't go anywhere. You're not going to be running out to the store for any food, no work or anything like that.

[00:01:54]For our military friends, the storm will hit Okinawa and then moves off here towards mainland Japan after tracking over the southern Japanese islands. It's going to kick right past Kyushu. Now, typically this time of year, as these storms get further towards the north, they do start to broaden and generally weaken. Uh so not damaging winds here but the problem is very volcanic soil in western areas of Japan especially Shikoku and and Kyushu. So we tend to get landslides. We get heavy rainfall from storm systems just like this that kind of crash into an abundant of moisture and tapped into the southwest monsoon. So that's going to be an issue further towards north. Let's take a closer look once again on our track and based on the latest JMA forecast which typically is more conservative from JTWC that is the US military's outlook. JMA says 120 km/h that is 65 knots that is typhoon strength the equivalent of a cat one hurricane. JTWC even has it a little bit stronger here. But the key thing is despite the broad circulation in this, not only JTBC, JMA and even Pagasa all expecting this at least with damaging winds across parts of Okinawa. Now when I say damaging, keep in mind that that island is absolutely built for this. Uh Cat 4, Cat Fives there, well, they'll toss cars. You know, cars are not built for that, but the buildings are. And and as long as you stay inside as a storm system approaches, you don't venture out because that's where people get hurt. Uh several years ago, we lost several airmen who were watching waves from a storm system went on by. Uh when I was working at NHK and reporting out here, we'd often see injuries and they were always from people stepping outside and flying debris would kick on by. Um, anybody that stays inside, especially on these military bases, even if we got 120 kilometers per hour sustained, 65 knots, 74 miles per hour, um, you'll be fine.

[00:03:50]You just got to stay inside away from those windows. People joke they're going to get a couple drinks. You know what?

[00:03:55]If that's what you need to do to pass the time, go for it. It is going to be here on um, Monday night into Tuesday morning. So, an overnight storm, as long as you just stay inside away from windows, you're fine. Um, make sure you also park your car, we're going to lead up to when this storm system does pass on the downwind side. So, it passes towards the left or west of Okinawa. Uh, you try to want to park your car on the northern side of some larger buildings.

[00:04:22]Uh, or in a parking garage if you can.

[00:04:24]Um, just because that way it kind of shelters it. Uh, you don't want to get stuck between two buildings or on the windward side. That's often a big issue, especially with those little K cars.

[00:04:32]Meanwhile, let's take a look here.

[00:04:34]Tuesday and Wednesday, our storm just cruises around Shakoku. the key peninsula and eventually over here towards the IU Peninsula and yeah, that means we're our friends around and Yokusa. Um I I point out these military spots because I know we got a lot of people that watch. Me being a fellow uh a former Eurographers mate, I know that a lot of you guys watch out here and um yeah, thanks for following along. If you're new to the channel, hit that subscribe button. All right, so main points for me, meteorologist Robert former meteors mate. Possible typhoon strength winds on Okinawa by Monday night probable I would say here on Okinawa. That means 65 knots and over that 50 knot threshold for the core one conditions. Damaging winds possible. So stay inside, ride out the storm. You can't evacuate on these islands. They're built for it. Large waves ahead of it.

[00:05:22]So also respect that. Don't be heading out to Cape Zamba uh thinking, I'm going to go check out the waves. I've seen deadly occurrences, and that's not even hyperbole, like legit deadly situations that have happened out there. Uh, meanwhile, we got a trampoline watch in place. I would say a trampoline warning.

[00:05:40]I I actually put out a little short earlier on YouTube channel on my Facebook talking about this. Every single storm, we always see these winds pick up here on Okinawa and a trampoline launches into somebody's home. I love me a good little jump especially for the kids when I was younger all day on this.

[00:05:59]Make sure you pick those up and just accomp that lawn furniture, lights, objects, things like that that can get tossed. You don't want to be a bad neighbor. You want to be a good neighbor. And also respect your Japanese neighbors for those that live off the base. So know that information through official sources. I am not an official source. Neither are any of the other YouTubers out here, okay? They some of them differ and they make their own forecast. I at least use the official agencies here and that's what I highly suggest if you're military. Follow along with those core systems. They know what's up. All right. They got they got on base mets, too. Uh prepare to evacuate if needed, but I don't think you're going to like just hunker down.

[00:06:34]Um and make a a go kit. I think right now batteries, some extra water. Uh if you want to get a couple drinks, go for it. Uh just ride out the storm. It's not going to be like we're not looking at a super typhoon here, okay? We're looking at enough where it's be like, I don't want to go outside today. Stuff's blowing around, but it's not enough to, you know, be busting trees over or anything like that based on the current forecast, which expect to be about a cat one, cat 2 near Okinawa. Uh, shows how often you get them out here where I'm like, h, that's not a good day, but not the worst weather. Inflow coming in behind this though. Let's switch gears over to the Philippines and Southeast Asia. The Southwest monsoon, which is tapping in moisture all the way from the Indian Ocean, is starting to turn on. That's because our Siberian high is weakening.

[00:07:26]The Westpack high is retreating. And now we got a big old fat storm system tapping into this basically acting like it's grabbing onto a rope here and pulling it and pulling in that moisture, thus increasing showers across the Philippines. might even a secondary little low kind of forming along that monsunal setup. So for the first week of June, heavy rain, persistent rain which is going to increase that chance of flooding especially across Muro Pelawan over there towards a good portion of Luzon as it grabs that moisture and pulls it in with our storm system heading off towards not just a Philippine problem. uh even further towards the west, Vietnam, uh Laos, which we actually had those uh uh several people who were trapped in a cave there for over a week because of flash flooding from the onset of the rainy season. So, don't be that person.

[00:08:21]Uh taking a look at Metro Manila. Yeah, we got afternoon showers there for you too here starting from Sunday, Monday, Tuesday, all the way out towards Wednesday. This the onset of your rainy uh season here. And this is reflected here in our forecast uh for Saturday all across the Philippines. That monsunal setup uh down towards the south and west already increasing. Even look at some windy conditions. If we look back towards north there into Luzon due to the winds kind of on the left side of this storm system kicking on in. So, lots going on out here in the western Pacific today from our tropical system nearing Okinawa in the southern Japanese islands to the monsunal inflow that this is tapping into pulling in that moisture on the back side of it. So, yeah, the onset of the rainy season here in the near future for our friends out across uh the Philippines. Meanwhile, in Guam, some scattered showers. do want to point out uh with our storm system tracking towards your west, you're still looking at some, you know, some messy weather, but the good news this is staying well towards the west of you, not expecting any direct impact. So, one more time, taking a look at that satellite picture of now tropical storm Jangmi, also known as Doming in the Philippines, moving off here towards the north. It will stay towards the east of the Philippines, but definitely some big impacts for our friends out here in Okinawa starting on Monday and peing by Monday night into Tuesday morning. So, let me know if you have any questions. I'm going to try my best to continue to keep you posted here at Western Pacific Weather. If you're new to the channel, of course, hit that like and subscribe button. Also, check out our Patreon if you want to follow along and support the channel as well. As always, though, stay safe out there.

[00:10:06]Bye.