Overall Green Tropical Cyclone for HIGOS-26 in Japan, Northern Mariana Islands, Guam from 22 Jun 2026 12:00 UTC to 24 Jun 2026 18:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green Tropical Cyclone for HIGOS-26

in Japan, Northern Mariana Islands, Guam

24 Jun 2026 18 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone HIGOS-26 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	Japan, Northern Mariana Islands, Guam
Exposed population	No people in Category 1 or higher
Maximum wind speed	102 km/h
Maximum storm surge	0.2 m (26 Jun 20:00 UTC)
Vulnerability	Medium (Guam)

GDACS Score

GDACS score for Tropical Cyclones is 0.5 (GREEN Level), 1.5 (ORANGE Level), 2.5 (RED Level)
For more info on GDACS core click here.

	Wind	Storm surge	Rainfall	GDACS score
Current	93 km/h	0.2 m	n.a.	0.5
Overall	102 km/h	0.2 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

93 km/h Current Max.

Up to 53000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
1	22 Jun 2026 12:00	74	10 thousand	No people
2	22 Jun 2026 18:00	83	No people	No people
3	23 Jun 2026 00:00	93	50 thousand	No people	Northern Mariana Islands
4	23 Jun 2026 06:00	111	50 thousand	No people	Northern Mariana Islands, Guam
5	23 Jun 2026 12:00	83	60 thousand	No people	Northern Mariana Islands, Guam
6	23 Jun 2026 18:00	83	60 thousand	No people	Northern Mariana Islands, Guam
7	24 Jun 2026 00:00	83	60 thousand	No people	Northern Mariana Islands, Guam
8	24 Jun 2026 06:00	56	50 thousand	No people	Northern Mariana Islands, Guam
9	24 Jun 2026 12:00	65	50 thousand	No people	Northern Mariana Islands, Guam
10	24 Jun 2026 18:00	93	50 thousand	No people	Northern Mariana Islands, Guam

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)
1	22 Jun 2026 12:00	Tropical depression	46	no people	no people	14.2, 147.8
2	22 Jun 2026 18:00	Tropical depression	56	no people	no people	14.5, 146.5
3	23 Jun 2026 00:00	Tropical storm	65	no people	50000 people	14.7, 145.6
4	23 Jun 2026 06:00	Tropical storm	65	no people	50000 people	14.8, 144.9
5	23 Jun 2026 12:00	Tropical depression	56	no people	no people	14.8, 143.9
6	23 Jun 2026 18:00	Tropical depression	56	no people	no people	14.9, 142.8
7	24 Jun 2026 00:00	Tropical depression	56	no people	no people	15.1, 141.9
8	24 Jun 2026 06:00	Tropical depression	56	no people	no people	15.7, 140.8
9	24 Jun 2026 12:00	Tropical depression	56	no people	no people	16.3, 139.7
10	24 Jun 2026 18:00	Tropical storm	65	no people	no people	17, 138.5
10	25 Jun 2026 06:00	Tropical storm	74	no people	no people	18.7, 136.4
10	25 Jun 2026 18:00	Tropical storm	83	no people	no people	21.3, 134.9
10	26 Jun 2026 06:00	Tropical storm	93	no people	no people	24.3, 134.4
10	26 Jun 2026 18:00	Tropical storm	83	no people	2600 people	29.2, 135.7
10	27 Jun 2026 06:00	Tropical depression	37	no people	no people	33.8, 138.5

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

Download:

Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country	Population in Tropical Storm or higher strength
Guam	no people
Northern Mariana Is.	42000 people

Provinces

Region Province	Country	Population in Tropical Storm or higher strength
Guam	Guam	no people
Northern Mariana Is.	Northern Mariana Islands	42000 people

Populated places

Name	Region Province	Country	City class	Population
Saipan		Northern Mariana Islands	Capital	62000 people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)
Rota I International	ROP	185	Civ.	Paved	Yes	6000
West Tinian	TIQ	82	Civ.	Paved	Yes	5900
Dynasty		46				0
Commonwealth Health Center		5				0
Saipan International	SPN	66	Civ.	Paved	Yes	8700
Nikko		18				0

Ports

Name	LOCODE	Country
Rota		Northern Mariana Islands
Tinian		Northern Mariana Islands
Saipan	MPSPN	Northern Mariana Islands
Kozu Island		Japan

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Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Rokken, Japan. This height is estimated for 26 Jun 2026 20:00 UTC .

The JRC has developed an experimental global storm surge model. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

Locations affected by Storm surge (107 locations). Calculation based on advisory number 10 of 24 Jun 2026 18:00:00 UTC. (Simulation using 0.5 minute resolution)

Level	Date (UTC)	Name	Country	Storm surge height (m)
	26 Jun 2026 20:00	Rokken	Japan	0.2
	26 Jun 2026 20:00	Sohara	Japan	0.2
	26 Jun 2026 20:00	Karasu	Japan	0.2
	23 Jun 2026 02:00	Sunharon Roads	Northern Mariana Islands	0.2
	26 Jun 2026 20:00	Shiratsuka	Japan	0.2
	26 Jun 2026 20:00	Matsuzaka	Japan	0.2
	26 Jun 2026 20:00	Ueno	Japan	0.2
	26 Jun 2026 20:00	Shiroko	Japan	0.2
	26 Jun 2026 20:00	Tsu	Japan	0.2
	26 Jun 2026 20:00	Suzuka	Japan	0.2
	26 Jun 2026 20:00	Saiku	Japan	0.2
	23 Jun 2026 02:00	Afetna	Northern Mariana Islands	0.1
	26 Jun 2026 18:00	Imazu	Japan	0.1
	26 Jun 2026 20:00	Akeno	Japan	0.1
	26 Jun 2026 20:00	Muramatsu	Japan	0.1
	26 Jun 2026 20:00	Ise	Japan	0.1
	26 Jun 2026 20:00	Ominato	Japan	0.1
	23 Jun 2026 02:00	Susupi	Northern Mariana Islands	0.1
	23 Jun 2026 02:00	Laolao	Northern Mariana Islands	0.1
	23 Jun 2026 02:00	Chalan Kanoa	Northern Mariana Islands	0.1
	23 Jun 2026 02:00	Aslito	Northern Mariana Islands	0.1
	23 Jun 2026 02:00	Saipan	Northern Mariana Islands	0.1
	23 Jun 2026 02:00	Kagman	Northern Mariana Islands	0.1
	23 Jun 2026 03:00	Songsong	Northern Mariana Islands	0.1
	23 Jun 2026 03:00	Teteto	Northern Mariana Islands	0.1
	23 Jun 2026 03:00	Rota	Northern Mariana Islands	0.1
	23 Jun 2026 03:00	Sinapalo	Northern Mariana Islands	0.1
	26 Jun 2026 18:00	Nakatsu	Japan	0.1
	26 Jun 2026 20:00	Tomari	Japan	0.1
	26 Jun 2026 20:00	Hasedashi	Japan	0.1
	26 Jun 2026 20:00	Obata	Japan	0.1
	26 Jun 2026 20:00	Futami	Japan	0.1
	26 Jun 2026 20:00	Matsuo	Japan	0.1
	26 Jun 2026 20:00	Tokoname	Japan	0.1
	26 Jun 2026 20:00	Kume	Japan	0.1
	26 Jun 2026 20:00	Noma	Japan	0.1
	26 Jun 2026 20:00	Otani	Japan	0.1
	26 Jun 2026 20:00	Utsumi	Japan	0.1
	26 Jun 2026 20:00	Yamata	Japan	0.1
	26 Jun 2026 20:00	Okada	Japan	0.1
	23 Jun 2026 02:00	Garapan	Northern Mariana Islands	0.1
	23 Jun 2026 02:00	Mutcho	Northern Mariana Islands	0.1
	23 Jun 2026 02:00	Tanapag	Northern Mariana Islands	0.1
	23 Jun 2026 02:00	San Roque	Northern Mariana Islands	0.1
	26 Jun 2026 18:00	Buzen	Japan	0.1
	26 Jun 2026 18:00	Higashiyoshitomi	Japan	0.1
	26 Jun 2026 18:00	Nagasu	Japan	0.1
	26 Jun 2026 18:00	Hashitsu	Japan	0.1
	26 Jun 2026 18:00	Yukuhashi	Japan	0.1
	26 Jun 2026 20:00	Sakabe	Japan	0.1
	26 Jun 2026 20:00	Yokkaichi	Japan	0.1
	26 Jun 2026 20:00	Itsuki	Japan	0.1
	26 Jun 2026 20:00	Kamezu-Shinden	Japan	0.1
	26 Jun 2026 20:00	Matsukage	Japan	0.1
	26 Jun 2026 20:00	Sakai	Japan	0.1
	26 Jun 2026 18:00	Takada	Japan	0.1
	26 Jun 2026 18:00	Bungo-Takada	Japan	0.1
	26 Jun 2026 18:00	Takedatsu	Japan	0.1
	26 Jun 2026 18:00	Taketazu	Japan	0.1
	26 Jun 2026 19:00	Obe	Japan	0.1
	26 Jun 2026 19:00	Okiura	Japan	0.1
	26 Jun 2026 19:00	Sakata	Japan	0.1
	26 Jun 2026 19:00	Kinoe	Japan	0.1
	26 Jun 2026 19:00	Shiramizu	Japan	0.1
	26 Jun 2026 19:00	Oi	Japan	0.1
	26 Jun 2026 19:00	Ono	Japan	0.1
	26 Jun 2026 19:00	Namikata	Japan	0.1
	26 Jun 2026 19:00	Munagata	Japan	0.1
	26 Jun 2026 19:00	Hasihama	Japan	0.1
	26 Jun 2026 19:00	Kuchisubo	Japan	0.1
	26 Jun 2026 19:00	Higai	Japan	0.1
	26 Jun 2026 19:00	Miyanoura	Japan	0.1
	26 Jun 2026 19:00	Imabari	Japan	0.1
	26 Jun 2026 19:00	Inokuchi	Japan	0.1
	26 Jun 2026 19:00	Mukuna	Japan	0.1
	26 Jun 2026 19:00	Kitaura	Japan	0.1
	26 Jun 2026 19:00	Sakai	Japan	0.1
	26 Jun 2026 19:00	Go-Sakurai	Japan	0.1
	26 Jun 2026 19:00	Hama-sakurai	Japan	0.1
	26 Jun 2026 19:00	Minamiura	Japan	0.1
	26 Jun 2026 19:00	Saiwaishinden	Japan	0.1
	26 Jun 2026 19:00	Seto	Japan	0.1
	26 Jun 2026 19:00	Miyoshi	Japan	0.1
	26 Jun 2026 19:00	Yosokuni	Japan	0.1
	26 Jun 2026 19:00	Miyakubo	Japan	0.1
	26 Jun 2026 19:00	Tomoura	Japan	0.1
	26 Jun 2026 18:00	Nyugawa	Japan	0.1
	26 Jun 2026 19:00	Mitera	Japan	0.1
	26 Jun 2026 19:00	Ogi	Japan	0.1
	26 Jun 2026 19:00	Kinoura	Japan	0.1
	26 Jun 2026 18:00	Komatsu	Japan	0.1
	26 Jun 2026 19:00	Myoga	Japan	0.1
	26 Jun 2026 19:00	Takahara	Japan	0.1
	26 Jun 2026 19:00	Innoshima	Japan	0.1
	26 Jun 2026 19:00	Saijo	Japan	0.1
	26 Jun 2026 19:00	Nihama	Japan	0.1
	26 Jun 2026 19:00	Habu	Japan	0.1
	26 Jun 2026 19:00	Takihama	Japan	0.1
	26 Jun 2026 20:00	Toba	Japan	0.1
	26 Jun 2026 21:00	Osasu	Japan	0.1
	26 Jun 2026 21:00	Ko Kowa	Japan	0.1
	26 Jun 2026 21:00	Futo	Japan	0.1
	26 Jun 2026 21:00	Handa	Japan	0.1
	26 Jun 2026 21:00	Toyohama	Japan	0.1
	26 Jun 2026 21:00	Morosaki	Japan	0.1
	26 Jun 2026 18:00	Kanda	Japan	0.1
	26 Jun 2026 18:00	Oryuzako	Japan	0.1

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While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.