Overall Green alert Tropical Cyclone for HERMAN-23

Event summary

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

GDACS ID TC 1000967
Name HERMAN-23
From - To 29 Mar - 02 Apr
Exposed countries Off-shore
Exposed population No people in Category 1 or higher
Maximum wind speed 204 km/h Category 3
Maximum storm surge 0.4 m (29 Mar 12:00 UTC)
Vulnerability --


For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
GDACS JTWC 65 km/h 0.4 m n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF 238 km/h 0.5 m 801 mm 0.5
GFS 191 km/h 0.7 m 568 mm 0.5
ECMWF 58 km/h 0.5 m 608 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, 2023. 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

Articles: 1 | About casualties: 0 | Last hour: 0

Les chercheurs de BRIN rappellent l’orage dû au cyclone Herman pour le ... 2023-03-29T14:14+0200.

Carte des précipitations à Jakarta. Photo: spécial. JAKARTA – Chercheur BRIN, Dr. Erma Yulihastin a déclaré que le vortex méso-gamma près de Sumatra s’est maintenant transformé en un cyclone tropical géant Herman. Sa croissance continue de

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), INFORM (1), (1),