Overall Green Tropical Cyclone for CHAN-HOM-26
in Japan

Event summary

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

GDACS ID TC 1001299
Name CHAN-HOM-26
From - To 07 Aug - 11 Aug
Exposed countries Japan
Exposed population No people in Category 1 or higher
Maximum wind speed 93 km/h Tropical storm
Maximum storm surge 0.6 m (11 Aug 10:00 UTC)
Vulnerability Low (Japan)

GDACS Score

For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
GDACS JTWC 93 km/h 0.6 m n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF 94 km/h 2.5 m 432 mm 0.5
GFS 137 km/h 3 m 676 mm 0.5
ECMWF 137 km/h 3.1 m 696 mm 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2026. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

CWA warns of hot and unstable weather 2026-08-13 ‘ORANGE’ ALERT: The a.. 8/12/2026 4:04:00 PM.

Temperatures might hit 36°C in parts of Taiwan, while the nation’s southwest faces the threat of heavy rain, with unstable weather expected over the next few days, the Central Weather Administration (CWA) said yesterday. The CWA issued an “
...(more)
Mapped: The three giant storms impacting millions of people across Asi.. 8/12/2026 10:59:00 AM.

Chinese media described Dolphin, Chan-Hom and Peilou as a rare "three-typhoon situation". Footage circulating on the Chinese social media platform Rednote showed a multi-lane road in Beijing turned into a river, with cars and buses half sub
...(more)
Mapped: Three giant storms impacting millions of people across Asia 8/12/2026 10:49:00 AM.

Footage circulating on the Chinese social media platform Rednote showed a multi-lane road in Beijing turned into a river, with cars and buses half submerged and traffic at a standstill. The northern district of Changping recorded 90.7mm of
...(more)
East Coast to See Rain through Friday, but Not Enough to End Drought 8/12/2026 10:08:00 AM.

The state weather agency says the nation’s east coast and the Gyeongsang region are set to see rain through Thursday, but not enough to end the drought in South Gyeongsang Province. The Korea Meteorological Administration forecast Wednesday
...(more)

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Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (40), WMO (1), INFORM (2), (1),