Overall Green Tropical Cyclone for BOLAVEN-23 in Northern Mariana Islands, Guam from 07 Oct 2023 00:00 UTC to 08 Oct 2023 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 BOLAVEN-23

in Northern Mariana Islands, Guam

Event summary

Tropical Cyclone BOLAVEN-23 can have a low humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID	TC 1001020
Name	BOLAVEN-23
From - To	07 Oct - 14 Oct
Exposed countries	Northern Mariana Islands, Guam
Exposed population	No people in Category 1 or higher
Maximum wind speed	287 km/h Category 5
Maximum storm surge	0.3 m (10 Oct 13:00 UTC)
Vulnerability	Medium (Guam)

GDACS Score

For more info on GDACS alert score click here.

	Wind	Storm surge	Rainfall	GDACS score
GDACS JTWC	287 km/h	0.3 m	n.a.	0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF	277 km/h	n.a.	381 mm	0.5
GFS	223 km/h	n.a.	701 mm	2.5
ECMWF	130 km/h	3.3 m	713 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

Meet NWS's 'Typhoon Twins' who help keep Guam safe and informed during.. 10/17/2023 3:29:00 PM.

Shell soon to open station on backroad to Andersen 10/16/2023 11:27:00 PM.

No FEMA aid for people with post-Bolaven damage 10/16/2023 3:46:00 PM.

Up Next Tropical Storm “Tammy” 10/16/2023 1:20:00 PM.

View more news

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

Analytical products

Data, images, links, services and documents

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

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