Tropical Storm Jangmi (Domeng) is strengthening in the Philippine Sea and is expected to intensify into a Category 1 typhoon with winds up to 170 km/h, moving west-northwest before lifting northward toward Okinawa and Japan, bringing heavy rain and potential storm surge impacts to southern Japan while also affecting the Philippines with increased rainfall from the southwest monsoon pattern.
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Friday, May 29th, 2026. I'm meteorologist Brian Shields. Jangmi is strengthening in the Philippine Sea and we're about to go into action mode in parts of Japan as we're going to see some typhoon impacts that will be moving in. We'll be tracking the timing of this system and just how strong it is going to get. Thank you for being with me. I'm Mr. Weatherman Asia meteorologist Brian Shields. We are watching this a much more defined system here in the Philippine Sea. You see some of these whiter colors and purples telling me we have really tall clouds. Things are building up. Those tall clouds, a lot of moisture, strong winds within them. You see this system more of that well-defined look of a tropical storm right now to the north of Palao to the northwest of Yap and off toward the west of the Mariana Islands. Philippines, it's going to get a little bit closer to Luzon. It is not going to move in. Now, keep things in perspective. It's not going to move in, but I do expect a little more of a a wiggle to the west northwest that could actually give us some outerband rain showers that will be moving in. We'll cover that in the Philipp uh Philippines, plus a bigger change in the Philippines with some of the weather. So, hang tight and we got to cover a lot of locations in this and I will do so. First thing is first, we are now in action mode. Southern Islands of Japan, including Okinawa. Typhoon impacts. We're looking at some of the heavier weather working in Sunday, especially late on Sunday, Sunday night in through Monday and Tuesday as it lifts up the island chain all the way to the north. Watching out for those coastal impacts depending on your exact terrain. The storm surge, some damage, some power loss in some locations depending on your exact grid. Winds could be upwards of 170 uh kilometers an hour or 100 miles per hour. I'm not seeing anything too much more. If anything, maybe it's a little bit less.
But to make those preparations, action mode, we need to do so now across the southern uh Japan islands because again uh we're going to see these stronger winds that will be moving in especially with that wiggle off toward the west.
Here's the track and you can see that we'll be moving to the west northwest with some jogs to the west putting it a little bit closer to the Philippines, but it's not going to move in. Then lifting up to the north as that category 1 typhoon right here as it starts to move in. Once it moves in, it kind of lifts right toward Okinawa. It we're going to see some weakening before it lifts to the north. And then we'll see that weakening with some heavier rain moving in for other areas of Japan as it eventually lifts to the north. You see it right here, the path bringing it to the north. Once it moves to the north near Okinawa, it will start to weaken as it lifts to the north and eventually makes the curve. So, we'll track all of that. All of the modeling and based on what I'm seeing on in the environment has shifted a little bit more to the west. We were talking about this the last few days. Once it heads up toward Tokyo though, we will have a substantially different system. It is going to be a lot weaker. Some heavier rain and then kind of working its way off into the northern sections of the Pacific. And you see the Google deep mine in line with that potential landfall of that typhoon right into Okinawa Island right here. Uh more of that westerly jog and then swinging to the north Taiwan. This will be off toward the east. Watching all locations on this channel. I'll let you know where it's going, but also where it's not going. I know there's a lot of channels out there that make it seem like uh something is headed everywhere all at once. That is just not the case. Again, always keeping it in perspective. The strength that I've been showing you over the last few uh videos, if you're subscribed to this channel, holding I think somewhere at its peak near uh 170 kilometers an hour. That may be just to the south of Okinawa as it approaches as it approaches uh some of the other islands as well. And then we should get some of the weakening after that as it lifts to the north, starts to encounter wind shear from a front. And I've been mentioning how this model has been so far off. I don't just look at the models. This one now is showing a 60 to 70% chance of this becoming a typhoon.
We've been talking about that for days.
Yesterday, I think it was more like a 40% chance, but we knew all along, if you've been watching this channel, that this had a high likelihood of becoming a typhoon. Models, they could really be out to lunch sometimes. And in that case, it has been now across the Philippines. I really want to zoom down in a moment. So hang tight. We'll get into that southwest monsoon that's going to be cranking in. But either way, these bands of rain wrapping around it. The core of this safely sitting to the north of Palao right now in the Philippine Sea. But over the next 24 to 48 hours, we'll get that strengthening through Sunday. Look how it is a little bit closer to Lance. So we'll get some of those outer kind of fastm moving showers that will be around, especially as we work our way into tomorrow or Saturday and Sunday. Just some of those showers rotating around as this lifts to the north. You see the proximity to Taiwan right there. So again, not moving into Lucan, but a little bit closer. And on the backside, we're going to watch all of this moisture that is about to move in. And we will track that in a zoomed down uh form in just a second, but we need to cover this. And you can see uh here we go across the uh southern islands of Japan right through here.
Now, if you're a little bit closer to uh Taiwan, not as much. This is going to really peak out. This is Sunday afternoon again. By 5:00, that's when we should have its peak intensity. So hopefully we get that weakening as it moves in. But through the day on Monday, conditions go downhill. I mentioned action mode. It is better to be safe, have those preparations done for late on Sunday. But because we may get some heavier rainbands working in late on the day on Sunday, then as we work our to Monday night and Tuesday, lifting through Okinawa, then lifting up toward the north. This would be by 2:00 on Tuesday. later on Tuesday, a different system. You see how it's not well defined. It's starting to lose its tropical characteristics at this point.
And you could see it right here uh as it starts to work in. Uh you could see uh some of the heavier rain, but not really that super well-defined center at this point. But these brighter colors we're seeing even working into Honchu by the time we get into Wednesday morning. Th this is the band of heavy rain. There's Tokyo. heavier rain but not typhoon impacts as we get over toward Honchu for example uh in Hokkaido mainly staying to the south as this will eventually curve away but heavy rain so we'll get that weakening trend which is good but still some of the heavier rain and some gusty winds with it speaking of which good segue Brian let's track some of those winds strengthening watch how these reds become more and more numerous in here those are winds 110 120 kilometers an hour and then the yellows popping up 140 to 150 right through here some gusty at least breezy conditions northern regions of the Philippines as this lifts to the north. Then I mentioned Sunday kind of peaking in intensity. Some of those winds could top 200 kilometers an hour.
That is going to be a potential with this. That's kind of on the high side, but the models have been off on this so far. So I do want to caution that.
That's why I mentioned we are in action mode in the locations that I said.
Safety first of course with this just in case uh it gets a little bit stronger than expected and maybe doesn't weaken quite as soon. So Monday morning some of the stronger winds starting to work in.
The white shading we're looking at 80 km an hour. Then Monday midday uh we're seeing those winds upwards of 110 to 145 km an hour moving in. This is by Monday evening. And you could put a pause on this as well depending on where you are where you have interest. and then lifting to the north with those strong conditions. Still some typhoon conditions Monday night, early Tuesday.
After that though, right after that, as it uh gets toward Okinawa, it'll start to weaken as it lifts up to the north.
Still, of course, uh tropical storm impacts, but it'll be in different form by the time we get into Tuesday. You see it here again. This is Tuesday evening at 7:00. And you see how this starts to work in uh Kushu, we're going to see some of those tropical storm conditions.
uh Shikoku. Uh we'll see that as well.
And then lifting up toward Honu with the onshore flow right into Tokyo, but definitely weaker. You see how there's not as much red on this. Uh we'll have some stronger winds, but more in the way of tropical storm conditions right as we work our way into the larger areas of Japan as this kind of progresses. Now, with this system lifting up to the north, watch what happens here as this starts to work away. This is later today. Still kind of a close approach by tomorrow. those gusty winds. We'll have that. Uh northern sections, even over toward the NCR, uh we'll have some of the stronger winds, fastm moving showers when you're on the outer fringes of a strengthening system that's about to become a typhoon. So, very quick moving showers. Let me know in the comments section if you get any of those as we work our way through the weekend. Then on Sunday, it lifts to the north and watch what happens. The rain chance starts to increase in a big fashion across the Philippines. that southwest monsoon kind of uh getting kicked in with what is lifting up to the north kind of getting enhanced. We'll have those winds out of the southwest and then we're looking at the rain Monday into Tuesday. Many locations look right around Manila that have not seen so much rain in quite some time. Monday into a Tuesday, hopefully that is your day.
Hopefully not too much. Sometimes you get it all at once as we well know in the tropics with those tropical downpours. You go from dry to too wet in a hurry. Now keeping an eye here's India, Sri Lanka watching Bangladesh of no seeing this in India. More of those afternoon storms that we'll be on the lookout for starting to fire up. That's kind of a sign of that pattern change as we work our way forward and watching these spots here in the Bay of Bengal and then swinging back toward the Arabian Sea. Just monitoring a couple of these areas here, but not really seeing any development. This is by Sunday.
Still watching out for more of those afternoon and evening storms. Malaysia.
Meanwhile, watching out for some of the rain. Bangladesh, uh, Bhutan watching out for some of the scattered areas of rain. We'll monitor for any signs of development. But there's that core of rain with Jangmi or Domain as it lifts up toward the north through the P. You see across the Philippines the next three days. So, this is through today into tomorrow through Sunday. So, this takes us through the weekend, but I mentioned Monday and a Tuesday more rain, but you get a taste of it. uh say parts of Asaias as you get into uh western areas where we could have some totals over 100 millimeters of rain. But that is a taste of what is to come Monday into uh Tuesday as all of this rain kind of surges around southern Vietnam. Cambodia more active. Thailand more active. Even Laos, it's been a little quieter. Some spots of Vietnam not as much mainly southern locations with the rain. Some batches of rain moving across China watching Taiwan. But there's that core of rain. This will lift up toward the southern islands of Japan. And as it does, once this eventually moves in late Sunday, but Monday into Tuesday in particular, some of those rain totals will be over 200 millimeters of rain to give you an idea of some of that rain with that typhoon.
Even if it is weakening at that point, that rain is still going to be real deal. So, just through the weekend, not as much. And then we'll be watching through Honchu some of that rain that will be really uh building once we get this system that will be moving in. And some of the afternoon storms could give anywhere from 75 to 100 millimeters of rain depending on your location. So Jongmi domain wobbles a little bit more to the west. We'll even see some of those outer rainbands back through parts of the Philippines, Japan. Those impacts likely as spelled out those areas that we are now in action mode. You're taking those preparations to be safe from some of those strong winds and you want those done by the time we get into Sunday evening. The Philippines, that rain is coming. It'll build through the weekend, more so Monday into a Tuesday as we get into the next working week and monitor more areas of development. As we know, we're going to get into that active uh cycle. So, thank you for being with me.
I'm Mr. Weatherman Asia. I've been enjoying the kindness and your comments.
Thank you for being part of this weather community, choosing to subscribe. Be safe. Have a good Friday ahead.
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