Overall Orange Tropical Cyclone for DITWAH-25 in Sri Lanka, India from 27 Nov 2025 00:00 UTC to 29 Nov 2025 06:00 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 Orange Tropical Cyclone for DITWAH-25

in Sri Lanka, India

29 Nov 2025 06 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

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

Meteorological source	GDACS
Glide number:	TC-2025-000218-LKA
Exposed countries	Sri Lanka, India
Exposed population	No people in Category 1 or higher
Maximum wind speed	65 km/h
Maximum storm surge	0.8 m (30 Nov 19:00 UTC)
Vulnerability	High (India)
Landfall	between 27 Nov 2025 06:00 - 27 Nov 2025 12:00 in Sri Lanka

GDACS Score

GDACS score for Tropical Cyclones is 0.5 (GREEN Level), 1.5 (ORANGE Level), 2.5 (RED Level)
For more info on GDACS core click here.

	Wind	Storm surge	Rainfall	GDACS score
Current	65 km/h	0.8 m	n.a.	1.5
Overall	65 km/h	0.8 m	n.a.	1.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

65 km/h Current Max.

Up to 71.7 million people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
1	27 Nov 2025 00:00	74	103.4 million	No people	Sri Lanka, India
2	27 Nov 2025 06:00	83	59.8 million	No people	Sri Lanka, India
3	27 Nov 2025 12:00	74	84.1 million	No people	Sri Lanka, India
4	27 Nov 2025 18:00	65	27.7 million	No people	Sri Lanka, India
5	28 Nov 2025 00:00	65	28 million	No people	Sri Lanka, India
6	28 Nov 2025 06:00	65	66.7 million	No people	Sri Lanka, India
7	28 Nov 2025 12:00	65	67.7 million	No people	Sri Lanka, India
8	28 Nov 2025 18:00	65	70.1 million	No people	Sri Lanka, India
9	29 Nov 2025 00:00	65	59.6 million	No people	Sri Lanka, India
10	29 Nov 2025 06:00	65	71.7 million	No people	Sri Lanka, India

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)	Countries
1	27 Nov 2025 00:00	Tropical storm	65	no people	21.4 million people	6.6, 81.2
2	27 Nov 2025 06:00	Tropical storm	65	no people	21.1 million people	7, 82.1
3	27 Nov 2025 12:00	Tropical storm	65	no people	21.6 million people	7.6, 81.7	Sri Lanka
4	27 Nov 2025 18:00	Tropical storm	65	no people	24.1 million people	7.9, 81.3	Sri Lanka
5	28 Nov 2025 00:00	Tropical storm	65	no people	24 million people	8.1, 81.1	Sri Lanka
6	28 Nov 2025 06:00	Tropical storm	65	no people	32.1 million people	8.3, 81	Sri Lanka
7	28 Nov 2025 12:00	Tropical storm	65	no people	9.5 million people	8.6, 80.9	Sri Lanka
8	28 Nov 2025 18:00	Tropical storm	65	no people	19.3 million people	9, 80.8	Sri Lanka
9	29 Nov 2025 00:00	Tropical storm	65	no people	14.2 million people	9.4, 80.8	Sri Lanka
10	29 Nov 2025 06:00	Tropical storm	65	no people	24.9 million people	9.9, 80.8
10	29 Nov 2025 18:00	Tropical storm	65	no people	42.8 million people	10.9, 80.7
10	30 Nov 2025 06:00	Tropical storm	65	no people	42.8 million people	12, 80.7
10	30 Nov 2025 18:00	Tropical storm	65	no people	32.8 million people	13.1, 80.8
10	01 Dec 2025 06:00	Tropical depression	56	no people	no people	13.8, 81

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

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Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Nuclear Facilities

Site Name	Type	Name	Country
Site-Kalpakkam	Nuclear Fuel Cycle	Coral	India
Site-Madras	Nuclear Power Reactor	Madras-2	India
Site-Madras	Research reactor	FBTR	India
Site-Madras	Nuclear Power Reactor	Madras-1	India
Site-Madras	Research reactor	KAMINI	India

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Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

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StormSurge

The JRC has developed an experimental global storm surge model. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

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