Overall Green Tropical Cyclone for BANG-LANG-26 in United States Minor Outlying Islands from 26 Aug 2026 06:00 UTC to 30 Aug 2026 12:00 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 BANG-LANG-26

in United States Minor Outlying Islands

26 Aug 2026 06 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

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

Meteorological source	GFS
Exposed countries
Exposed population	No people in Category 1 or higher
Maximum wind speed	61 km/h
Maximum storm surge	0.4 m (26 Aug 09:30 UTC)
Vulnerability	Low ()

GDACS Score

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

	Wind	Storm surge	Rainfall	GDACS score
GFS Current	61 km/h	0.4 m	28 mm	0.5
GFS Overall	148 km/h	0.4 m	537 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

148 km/h

No people by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 26 Aug 2026 06:00 UTC

See TC classification SSHS

Wind Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

Alert	N°	Date (UTC)	Max Winds (km/h)	Pop in Cat. 1 or higher	TS	Cat. 1	Cat. 2	Cat. 3	Cat. 4	Cat. 5	Countries
	1	26 Aug 2026 06:00	90	-	-	-	-	-	-	-

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

No exposed population (greater than 50mm) based on the bulletin of 26 Aug 2026 06:00 UTC

Rain Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

Alert	N°	Date (UTC)	Max Rainfall (mm)	Pop >100mm or higher	50-100	100-250	250-500	500-750	750-1000	>1000	Countries
	1	26 Aug 2026 06:00	288	-	-	-	-	-	-	-

Impact estimation for the next 72h

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StormSurge

0.4 m

The maximum Storm surge height is 0.4m in Rokko, Russia. This height is estimated for 26 Aug 2026 09:30 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.

Storm Surge Exposed population - AoIs

Storm Surge Exposed locations

Calculation based on the bulletin of 26 Aug 2026 06:00 UTC

Level	Date (UTC)	Name	Country	Storm surge height (m)
	26 Aug 2026 09:30	Rokko	Russia	0.4
	26 Aug 2026 09:30	Mammae	Russia	0.4
	26 Aug 2026 09:30	Tayezhnyy	Russia	0.4
	26 Aug 2026 09:30	Lesozavodskiy	Russia	0.4
	26 Aug 2026 09:30	Dobroye	Russia	0.4
	26 Aug 2026 09:30	Okeanskiy	Russia	0.4
	26 Aug 2026 09:30	Odesskiy	Russia	0.4
	26 Aug 2026 09:15	Mataruzaru	Russia	0.4
	26 Aug 2026 09:15	Selivanovka	Russia	0.4
	26 Aug 2026 09:15	Sanjibotsu	Russia	0.4
	26 Aug 2026 09:45	Reydovo	Russia	0.4
	26 Aug 2026 09:45	Rokubanchi	Russia	0.4
	26 Aug 2026 09:45	Higashirucharu	Russia	0.4
	26 Aug 2026 09:45	Shamambe	Russia	0.4
	26 Aug 2026 09:30	Berezovka	Russia	0.3
	26 Aug 2026 09:45	Riyaushi	Russia	0.3
	26 Aug 2026 09:30	Osenniy	Russia	0.3
	26 Aug 2026 09:30	Zolotoy	Russia	0.3
	26 Aug 2026 09:30	Kuybyshevo	Russia	0.3
	26 Aug 2026 09:30	Kasatka	Russia	0.3
	26 Aug 2026 09:30	Iodnyy	Russia	0.2
	26 Aug 2026 09:30	Mysovaya	Russia	0.2
	26 Aug 2026 09:30	Otlivnyy	Russia	0.2
	26 Aug 2026 09:45	Yanketo	Russia	0.2
	26 Aug 2026 09:45	Kitovyy	Russia	0.2
	26 Aug 2026 09:45	Matoiso	Russia	0.2
	26 Aug 2026 09:30	Chikkaporo	Russia	0.2
	26 Aug 2026 09:30	Rybaki	Russia	0.2
	26 Aug 2026 09:30	Chippuporo	Russia	0.2
	26 Aug 2026 09:30	Kurilsk	Russia	0.2
	26 Aug 2026 09:45	Parusnoye	Russia	0.2
	26 Aug 2026 09:30	Sopochnyy	Russia	0.2
	26 Aug 2026 09:30	Sokitani	Russia	0.2
	26 Aug 2026 09:30	Sentyabrskiy	Russia	0.2
	26 Aug 2026 09:30	Slavnoye	Russia	0.2
	26 Aug 2026 09:15	Podgornyy	Russia	0.2
	26 Aug 2026 09:15	Kompaneysk	Russia	0.2
	26 Aug 2026 09:15	Ryabinovka	Russia	0.2
	26 Aug 2026 09:15	Kastrikum	Russia	0.2
	26 Aug 2026 11:00	Nov'	Russia	0.2
	26 Aug 2026 11:00	Kambaraiso	Russia	0.2
	26 Aug 2026 11:00	Sernozavodskiy	Russia	0.2
	26 Aug 2026 09:00	Kitoboynyy	Russia	0.2
	26 Aug 2026 09:00	Kostochko	Russia	0.2
	26 Aug 2026 08:45	Astaurova	Russia	0.2
	26 Aug 2026 09:00	Kraternyy	Russia	0.2
	26 Aug 2026 08:45	Medvezhye	Russia	0.1
	26 Aug 2026 07:45	Aleutka	Russia	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.
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