Typhoon Jangmi Strengthens...

Added: 2026-05-30

[00:00:00]Saturday, May 30th, 2026. I'm meteorologist Brian Shields here on Mr. Weatherman Asia. Jangmi is headed to parts of Japan. Not only are we tracking the stronger winds with it, but the really heavy rain where it's going to set up and when it is going to be moving in. More updates to come. If you're subscribed, you'll get those notifications first, of course. Let's get right to it. Here we are in the Philippines. And by the way, this has been bringing some of us some of the additional rain as expected. Even more on the way. I'm going to zoom down across the Philippines. You can see it more defined right here as it works its way through the Philippine Seas. So, uh, this is Jangmi or Domain as it lifts to the north headed toward Japan, the southern islands. But I also want to show you some of that rain that'll even be lifting up towards say Tokyo as we work our way forward. But you see how this is kind of wrapping around a little bit more. So, I'm not seeing any rapid strengthening out of this, but it has been gradually getting better organized.

[00:00:52]We're going to see more and more of that as we work our way forward. Now, we are in action mode. southern islands of Japan late Sunday into Tuesday for some of those typhoon impacts. They may be strong tropical storm impacts. Either way, watching that storm surge, possibility of some damage, power loss.

[00:01:09]The winds right now I'm looking at uh as this moves into say Okinawa. Winds right around 130 to 140 kilometers an hour. So 80 to 90 mph. That gives you kind of a feel through some of the islands, some of them on what we could expect. And then we'll cover some of that rainfall as well, even surging to the north back toward Honchu. So you can see the track on this as we go over the next few days bringing it right toward Naha, moving in toward Okinawa. That's where we could see that landfall right into Naha and Okinawa. That's why we are making those preparations to be on the safe side. I expect a weakening trend as it moves in.

[00:01:43]You see, as we look at this and I try to fine-tune and get the best modeling uh that uh I believe is matching up with the environment, I expect some strengthening uh category 1 to category 2, watching that for a typhoon, and then eventually a little weakening, but not enough to really knock it down enough as it moves in. So, we could take on some damage in some of the spots. Now, all in pretty good agreement with what I've been showing over the last three days with the modeling on this. It did take that shift a little bit more back to the west that we are highlighting closer to the Philippines, but it's not coming into the Philippines or Taiwan. And then eventually hooking away once it gets up here to some of the main islands, larger islands I should say, of Japan, uh what we're going to see is that weakening uh even more so. And the rain will be a fine line between who gets dumped on and who doesn't get a whole lot, which we'll cover. So you see the modeling on this taking this right up toward Naha, Okinawa Island, and then lifting up to the north. It may stay just offshore, but either way, it's going to be weakening as it heads toward Tokyo. But some heavy, heavy rain that will be moving in. Now, taking a look at the strength of this strengthening over the next 24 hours. The same models I was just showing you. This is a day out and two days out. So, we should peak roughly around 140 kilometers an hour. Maybe a little more, maybe a little less, but we're in action mode uh across the southern islands of Japan because of some of these impacts that we can see.

[00:03:04]So regardless, even if it's a little stronger, a little weaker, it's always better to uh be prepared as this moves in. Now, pretty close proximity to Lison. So with that, as we go through the day today, we get some of that backside flow, some fastoving showers, southern areas, watching Palao and Yap, some heavier rain. And then this is the surge of rain that's going to be moving in. And again, if you are watching right now from the Philippines, hang on. I want to show you some significant rain that will be moving in and we'll cover some of the rain totals as this lifts to the north. We have a big surge of moisture. West Philippine Sea that is going to be pumping in. So hang tight.

[00:03:36]We'll cover that. But let's track this storm from start to finish, lifting to the north. Again, this is tomorrow afternoon. Here's Taiwan staying safely off toward the east. Now, ahead of this, though, here's the core of this. Uh, it should be peaked out in intensity by tomorrow afternoon. You get these predecessor rain events. They're kind of blobs of rain, batches of rain that shoot out far ahead of it. And that's why I mentioned for preparation sake, you want to be done by about midday tomorrow in case you got some heavier weather moving in. Monday it should be weakening but I mentioned that uh cautiously because as this lifts up toward Okinawa still packing a punch.

[00:04:09]Strong tropical storm or that lowend typhoon but a typhoon uh none the less in a strong tropical storm can cause that damage. So we'll be prepped here across the islands lifting up. This is deeper into Monday then Tuesday lifting to the north. You see how it's kind of losing its identity a bit as we work our way forward. that eye not as symmetric or at least not kind of all all that moisture wrapping around most of the moisture north and east side but in that you see the yellows and some of the reds those are some big time downpours that will be moving in so you see it right here Kyushu over toward Shuk uh Shukoku and then lifting up toward Honu we'll see that rain now Hokkaido we're not going to see much rain northern sections of Honu not as much but right through here this is what I was talking about here's Tokyo really heavy rain kyosu it's going to be leaving working its way off toward the east and then just clipping by Tokyo. This here is Wednesday with that really heavy rain.

[00:05:02]But northern sections of Honchu back through Hokkaido, we're not seeing as much and then eventually making its curl out and weakening as we work our way into Thursday. So, it kind of lifts up weakening and then makes that turn right near Tokyo and then tries to work its way back over the water. But a totally different state at that time. Again, it will be a whole lot we uh weaker. So, watching this, let's go forward and stop it right about here as we work our way into tomorrow night. This is when it should peak out. You see some of the yellows in there. Winds of about 145 km an hour or 90 mph. That's kind of on the high side of what we'll see and then working its way to the north and then we'll start to get that gradual weakening. But, as I mentioned, still a typhoon or at least a strong tropical storm moving in. So, we need to take those necessary precautions to be safe.

[00:05:48]And then you see by the time we get into Monday night, heavier weather, Naha, Okinawa, uh really heavy weather that will be around the very strong driving winds that uh many folks have been through before and then lifting up to the north. But as we get into Tuesday, not as much in the way of the reds on the map uh as we see more of that weakening, still gusty winds, the wind driven rain that will uh still be with us, but not in uh not as much uh intensity as far as those sustained winds are concerned. And you see it here. This is Tuesday. And you can see how we lose some of the colors. Kyushu back toward uh Shukoku. We're still going to see some of those gustier winds, but more in the way of tropical storm conditions and mainly along the coast. Still a bit of a surge though.

[00:06:29]We'll be watching that. Some of the winds could be as high as 110 115 kilometers an hour. But then we really lose the reds on Wednesday. Tokyo, some of the winds gusting to about 80 kilometers an hour. So we'll get those gusty winds in the rain in it as well.

[00:06:44]So that wind driven rain. So even once it gets to that weakening phase, still significant with those tropical storm impacts that will be moving in. Looking at the rain totals over the next next seven days. And you see right here, look at those reds. Well, some of the islands, especially central islands, that's in in northern islands, that's where we'll get about uh 20 centimeters of rain. Closer to Taiwan, not nearly as much. Most of the action is going to be on the east side of this east side of the center, especially once it gets into that weakening phase. Shear is going to kind of shift a lot of that action off to the east. So if you're east of the center of that, that's where we'll have higher winds and higher rain totals. And you see that fine line I mentioned, northern sections of Honchu, not as much. Tokyo south, coastal sections, that's where we'll see those totals that could be over 200 millimeters of rain as we work our way into the middle of next week. Now, this has an influence uh on the weather as we go through the day today. You may get some of those fastmoving showers across the Philippines, especially Louson back toward Visayas. Let me know. You may get those kind of quick little burst of showers. Not all of us, but some of us will. I'll be watching your comments.

[00:07:46]But as this lifts to the north, it acts like it's pulling in the southwest monsoon. That doesn't mean the southwest monsoon is here. This is just kind of the influence of this system, but you see it just drawing in that moisture here. This is tomorrow afternoon and then it starts to fill in Sibu back toward the NCR. Uh steadier rain at times. Some of this will be heavy as we get into Monday. Monday into Tuesday, that's when that rain chance will be higher. Still watching over toward Devau. Mindanao. Uh, Mindanao, we're seeing some of that rain, but look at that slug of moisture that's working in Logosby back toward Manila. Some of this could be heavy. Some spots that haven't seen a whole lot of rain. We're about to flood, get some flooding rain as we work our way Monday into Tuesday. So, be safe with that. Let me know if you finally get some of the rain. I'll be watching the comments. But again, more updated videos to come. Now, we swing back uh toward the Arabian Sea, swinging back toward the Bay of Bengal. Just monitoring some of the showers around uh Lao, southern sections, Vietnam, Cambodia, watching out for some of the rain over toward Malaysia. This little spot's kind of interesting here over toward the Arabian Sea. Not any significant signs of development. This is through Monday. Bangladesh, Bhutan, uh seeing some of the uh showers around and some afternoon storms around uh northern and northeastern regions of India. So there's the moisture. This right in here, this is over the next three days uh with Jong Mi. we get across the Philippines and you see western regions some of those totals higher Visayas western sections where we haven't gotten some rain in some areas or at least not a whole lot over 100 millimeters of rain and you see that coming in off the west Philippine Sea even more rain that is going to be around especially by the time we get into Tuesday which is just out out of this time frame these are three-day totals so it takes us through today through Sunday into uh Monday but this moisture here is set to start to uh uh work in China. Some spots have been uh seeing less rain as that kind of uh frontal boundary that we see earlier in the season kind of uh sags to the south and diminishes. But there's the rain that I covered. These are three-day totals. I showed you the six-day expanded totals in this just to cover this area. So 3 days, not as much in Tokyo. But we know just after that with Jong Mi that will be moving in higher totals, especially Tokyo South and along the southern facing waters. Then we swing back here. These are some afternoon storms. Meanwhile, back toward Laos, Thailand. uh watching over toward Vietnam, Cambodia, watching out for some areas that will be over 100 millimeters of rain. So, Jung headed toward Japan.

[00:10:12]Southern Islands, we'll get some of the typhoon winds. Even if it's a strong uh tropical storm, we're going to have at least typhoon gusts, but I expect it to be a typhoon as it approaches Okinawa, a weakening trend as it lifts more to the north, but the heavy rain and the flood threat with it. And we're now watching the flood threat in parts of the Philippines. A very busy pattern ahead.

[00:10:32]So, thank you for taking the time to subscribe to the channel and be part of this weather uh community. I hope you have a good and safe Saturday ahead.