Overall Green alert Tropical Cyclone for SENYAR-25
in Indonesia, Malaysia

Event summary

Tropical Cyclone SENYAR-25 can have a low humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID TC 1001237
Name SENYAR-25
From - To 25 Nov - 27 Nov
Exposed countries Indonesia, Malaysia
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h Tropical storm
Maximum storm surge 1.5 m (26 Nov 13:00 UTC)
Vulnerability Low (Indonesia)

GDACS Score

For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
GDACS JTWC 83 km/h 1.5 m n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF 112 km/h 0.6 m 1000 mm 0.5
GFS 133 km/h 0.6 m 1131 mm 0.5
ECMWF 133 km/h 0.8 m 997 mm 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Indonesia - Tropical storm SENYAR, floods and landslides (ECHO 03 Dec 2025)Fri, 28 Nov 2025 10:12

  • Heavy rainfall and strong winds have been affecting the Sumatra island, north-western Indonesia over the last week, causing floods and landslides that have resulted in casualties and damage. The severe weather was also due to the passage of the tropical storm SENYAR over the northern Sumatra island from 24 to 27 November.
  • The Indonesian National Board for Disaster Management (BNPB) and media report, as of 28 November, up to 60 fatalities, 59 people missing, approximately 8,000 evacuated people and around 2,000 damaged buildings across the provinces of North Sumatra, West Sumatra and Aceh. The worst affected regencies across the North Sumatra province are Sibolga - with 47 fatalities - Central Tapanuli, South Tapanuli, North Tapanuli, and Mandailing Natal.
  • Over the next 24 hours, more heavy rainfall with locally very heavy rainfall is forecast over most of the island of Sumatra.
Detailed event map. European Union, 2025. 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

What is cyclone Senyar? All you need to know 11/25/2025 11:37:00 AM.

Meteorologists say that a well-marked low-pressure area that formed near the Strait of Malacca and the south Andaman Sea has strengthened over the past few days. It is likely to intensify into a depression and then a cyclonic storm around N
...(more)
Cebu City logs 4 ‘Lepto’ deaths 11/25/2025 11:28:00 AM.

FOUR people in Cebu City have died due to suspected leptospirosis following weeks of heavy rains and flooding brought by Typhoon Tino and Super Typhoon Uwan in the month of November. Cebu City Health Department (CCHD) chief Dr. Daisy Villa
...(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), (2), DesInventar (1), WMO (1), INFORM (2),