Overall Green Tropical Cyclone for HAROLD-23 in United States, Mexico from 21 Aug 2023 15:00 UTC to 22 Aug 2023 09:00 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 HAROLD-23

in United States, Mexico

Event summary

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

GDACS ID	TC 1000997
Name	HAROLD-23
From - To	21 Aug - 23 Aug
Exposed countries	United States, Mexico
Exposed population	No people in Category 1 or higher
Maximum wind speed	83 km/h Tropical storm
Maximum storm surge	1 m (22 Aug 21:00 UTC)
Vulnerability	Medium (Mexico)

GDACS Score

For more info on GDACS alert score click here.

	Wind	Storm surge	Rainfall	GDACS score
GDACS NOAA	83 km/h	0.8 m	n.a.	0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF	101 km/h	0.9 m	637 mm	0.5
GFS	79 km/h	0.8 m	339 mm	0.5
ECMWF	65 km/h	0.8 m	281 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)

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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

Analytical products

Data, images, links, services and documents

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

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