Overall Orange alert Tropical Cyclone for DITWAH-25
in Sri Lanka, India

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 0.7 m (29 Nov 14:00 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 0.7 m n.a. 1.5
Overall 65 km/h 0.7 m n.a. 1.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

Wind

65 km/h Current Max.

Up to 66.7 million people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Level Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Orange 1 27 Nov 2025 00:00 74 103.4 million No people Sri Lanka, India
Orange 2 27 Nov 2025 06:00 83 59.8 million No people Sri Lanka, India
Orange 3 27 Nov 2025 12:00 74 84.1 million No people Sri Lanka, India
Orange 4 27 Nov 2025 18:00 65 27.7 million No people Sri Lanka, India
Orange 5 28 Nov 2025 00:00 65 28 million No people Sri Lanka, India
Orange 6 28 Nov 2025 06:00 65 66.7 million No people Sri Lanka, India

Bulletin Timeline

Level Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
GREEN
1 27 Nov 2025 00:00 Tropical storm 65 no people 21.4 million people 6.6, 81.2
GREEN
2 27 Nov 2025 06:00 Tropical storm 65 no people 21.1 million people 7, 82.1
GREEN
3 27 Nov 2025 12:00 Tropical storm 65 no people 21.6 million people 7.6, 81.7 Sri Lanka
ORANGE
4 27 Nov 2025 18:00 Tropical storm 65 no people 24.1 million people 7.9, 81.3 Sri Lanka
ORANGE
5 28 Nov 2025 00:00 Tropical storm 65 no people 24 million people 8.1, 81.1 Sri Lanka
ORANGE
6 28 Nov 2025 06:00 Tropical storm 65 no people 32.1 million people 8.3, 81 Sri Lanka
ORANGE
6 28 Nov 2025 18:00 Tropical storm 65 no people 34.5 million people 9, 80.8 Sri Lanka
ORANGE
6 29 Nov 2025 06:00 Tropical storm 65 no people 29.6 million people 9.8, 80.6
ORANGE
6 29 Nov 2025 18:00 Tropical storm 65 no people 44.2 million people 10.7, 80.4
GREEN
6 30 Nov 2025 06:00 Tropical depression 56 no people no people 11.6, 80.2
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.
Download:



Exposed population - AoIs

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

Countries

Country Population in Tropical Storm or higher strength
Sri Lanka 21.5 million people
India 44.4 million people

Provinces

Region Province Country Population in Tropical Storm or higher strength
Eastern Sri Lanka 1.4 million people
North Central Sri Lanka 1.4 million people
Central Sri Lanka 2.7 million people
Northern Sri Lanka 840000 people
North Western Sri Lanka 2.5 million people
Uva Sri Lanka 1.4 million people
Sabaragamuwa Sri Lanka 2.2 million people
Western Sri Lanka 6.3 million people
Tamil Nadu India 42.7 million people
Southern Sri Lanka 2.6 million people
Pondicherry India 1.6 million people
Andhra Pradesh India 23000 people

Populated places

Name Region Province Country City class Population
Trincomalee North Eastern Sri Lanka City 110000 people
Anuradhapura North Central Sri Lanka City 61000 people
Matale Central Sri Lanka City 36000 people
Batticaloa North Eastern Sri Lanka City 87000 people
Kurunegala North Western Sri Lanka City 28000 people
Kandy Central Sri Lanka City 110000 people
Nuwara Eliya Central Sri Lanka City 25000 people
Gampaha Western Sri Lanka City 9300 people
Negombo Western Sri Lanka City 140000 people
Ragama Western Sri Lanka City 27000 people
Jaffna North Eastern Sri Lanka City 170000 people
Wattala Western Sri Lanka City 30000 people
Colombo Western Sri Lanka Capital 610000 people
Kotte Western Sri Lanka City 120000 people
Moratuwa Western Sri Lanka City 180000 people
Panadura Western Sri Lanka City -
Ramesvaram Tamil Nadu India City -
Wadduwa Western Sri Lanka City -
Kalutara Western Sri Lanka City 38000 people
Pamban Tamil Nadu India City -
Galle Southern Sri Lanka City 92000 people
Ramanathapuram Tamil Nadu India City 62000 people
Muttupet Tamil Nadu India City 21000 people
Paramagudi Tamil Nadu India City -
Pattukkottai Tamil Nadu India City 67000 people
Devakottai Tamil Nadu India City -
Nagappattinam Tamil Nadu India City -
Thiruvarur Tamil Nadu India City 57000 people
Mannargudi Tamil Nadu India City 63000 people
Karaikkudi Tamil Nadu India City 87000 people
Arimalam Tamil Nadu India City 8000 people
Karikal Pondicherry India City -
Alangudi Tamil Nadu India City 11000 people
Ramachandrapuram Tamil Nadu India City -
Tranquebar Tamil Nadu India City -
Pudukkottai Tamil Nadu India City 110000 people
Vallam Tamil Nadu India City 15000 people
Thanjavur Tamil Nadu India City 220000 people
Mayuram Tamil Nadu India City -
Kumbakonam Tamil Nadu India City 140000 people
Papanasam Tamil Nadu India City 16000 people
Sirkazhi Tamil Nadu India City -
Mannargudi Tamil Nadu India City -
Udaiyarpalaiyam Tamil Nadu India City -
Chidambaram Tamil Nadu India City 58000 people
Tiruchchirappalli Tamil Nadu India City 750000 people
Porto Novo Tamil Nadu India City -
Ariyalur Tamil Nadu India City 28000 people
Perambalur Tamil Nadu India City 30000 people
Neyveli Tamil Nadu India City 130000 people
Cuddalore Tamil Nadu India City -
Nellikkuppam Tamil Nadu India City 44000 people
Panruti Tamil Nadu India City -
Pondicherry Pondicherry India City 230000 people
Villupuram Tamil Nadu India City -
Kallakkurichchi Tamil Nadu India City -
Tindivanam Tamil Nadu India City 70000 people
Tiruvannamalai Tamil Nadu India City 130000 people
Tirukkalukkunram Tamil Nadu India City -
Tiruvettipuram Tamil Nadu India City -
Arani Tamil Nadu India City 62000 people
Tambaram Tamil Nadu India City 140000 people
Kanchipuram Tamil Nadu India City 160000 people
Sriperumbudur Pallavaram Tamil Nadu India City -
Chennai Tamil Nadu India Major city 4.3 million people
Poonamallee Tamil Nadu India City -
Takkolam Tamil Nadu India City -
Ambattur Tamil Nadu India City 340000 people
Walajapet Tamil Nadu India City 30000 people
Avadi Tamil Nadu India City 250000 people
Kanippettai Tamil Nadu India City -
Arkonam Tamil Nadu India City -
Vellore Tamil Nadu India City -

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Minneriya MNH 46 0
China Bay TRR 2 Mil. Paved Yes 7300
Sigiriya 191 0
Anuradhapura ADP 99 Mil. Paved No 4000
Vavuniya 91 0
Batticaloa BTC 3 Civ. Paved No 3400
Amparai GOY 46 Civ. Paved No 3600
Colombo Bandaranayake International CMB 9 Civ. Paved Yes 10900
Kankesanturai JAF 10 Civ. Paved Yes 7500
Colombo Ratmalana RML 7 Civ. Paved Yes 6000
Katukurunda 3 0
Wirawila 15 Mil. Paved No 4000
Koggala 3 0
Tanjore 77 Civ. Paved No 6100
Thanjavur TJV unknown 0
Tiruchchirappalli TRZ 89 Civ. Paved Yes 6100
Neyveli NVY unknown 0
Pondicherry PNY 42 Civ. Paved No 4000
Tambaram 27 Mil. Paved No 5900
Madras Chennai MAA 15 Civ. Paved Yes 12000
Arkonam 84 Mil. Paved Yes 11000

Ports

Name LOCODE Country
Trincomalee LKTRR Sri Lanka
Pulmoddai Sri Lanka
Batticaloa Roads Sri Lanka
Mullaittivu Sri Lanka
Mannar LKMAN Sri Lanka
Puttalam Sri Lanka
Elephant Pass Sri Lanka
Negombo Sri Lanka
Jaffna LKJAF Sri Lanka
Kankesanturai LKKNK Sri Lanka
Colombo LKCMB Sri Lanka
Kayts LKKAY Sri Lanka
Okanda Sri Lanka
Moratuwa Sri Lanka
Kalutara Sri Lanka
Panban India
Hambantota LKHBA Sri Lanka
Ambalangoda Sri Lanka
Dondra Head Sri Lanka
Galle LKGAL Sri Lanka
Matara Sri Lanka
Weligama Bay Sri Lanka
Tondi India
Adirampattinam India
Nagapattinam INNPT India
Tuticorin (New Tuticorin) INTUT India
Karikal INKRK India
Cuddalore INCDL India
Pondicherry INPNY India
Madras INMAA India

Dams

Reservoir Dam Name River Year
Minneriya Wewa Minneriya 300
Lake Parakrama Parakrama Samudra Amban Ganga 386
Mahadaragala Reservoir Nachchaduwa Wewa 300
Nuwara Wewa 0
Maduru Oya Maduru Oya 1983
Victoria Mahaweli 1984
Randenigala Mahaweli 1986
Iranaimadu Kanagarayan Aru 1922
Senanayaka Samudra Senanayaka Samudra Gal Oya 1956
Kotmale Kotmale Oya 1985
Udawalawe Walawe Ganga 1973
Willingdon Periyarodai 1923

Nuclear power plants

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

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.

...

StormSurge

0.7 m

The maximum Storm surge height is  0.7m in Pooneryn, Sri Lanka. This height is estimated for 29 Nov 2025 14:00 UTC .

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.

Locations affected by Storm surge (177 locations). Calculation based on advisory number 6 of 28 Nov 2025 06:00:00 UTC. (Simulation using 0.5 minute resolution)

Level Date (UTC) Name Country Storm surge height (m)
29 Nov 2025 14:00 Pooneryn Sri Lanka  0.7
29 Nov 2025 14:00 Kiranchi Sri Lanka  0.7
29 Nov 2025 14:00 Idaikkadu Sri Lanka  0.7
28 Nov 2025 23:00 Chiruttoppu Sri Lanka  0.7
29 Nov 2025 10:00 Mannar Sri Lanka  0.6
28 Nov 2025 05:00 Pamban India  0.6
28 Nov 2025 04:00 Irumeni India  0.6
29 Nov 2025 14:00 Kayts Sri Lanka  0.6
29 Nov 2025 00:00 Talaimannar Sri Lanka  0.5
29 Nov 2025 08:00 Kurichchikadu Sri Lanka  0.5
27 Nov 2025 04:00 Muttupettai India  0.4
27 Nov 2025 04:00 Panalkkulam India  0.4
29 Nov 2025 08:00 Delft Centre Sri Lanka  0.4
29 Nov 2025 00:00 Anaippapan Sri Lanka  0.4
29 Nov 2025 13:00 Silavatturai Sri Lanka  0.4
27 Nov 2025 03:00 Kilakarai India  0.3
29 Nov 2025 00:00 Chalai Sri Lanka  0.3
28 Nov 2025 13:00 Pomparippu Sri Lanka  0.3
29 Nov 2025 01:00 Chundikkulam Sri Lanka  0.3
27 Nov 2025 04:00 Rameswaram India  0.3
29 Nov 2025 01:00 Aliavalai Sri Lanka  0.3
29 Nov 2025 06:00 Kankesanturai Sri Lanka  0.3
29 Nov 2025 07:00 Point Pedro Sri Lanka  0.3
29 Nov 2025 01:00 Ampan Sri Lanka  0.3
29 Nov 2025 18:00 Quilon India  0.3
28 Nov 2025 02:00 Vedaranyam India  0.3
28 Nov 2025 02:00 Vedaranniyam India  0.3
28 Nov 2025 02:00 Kodigeri India  0.3
27 Nov 2025 10:00 Kalmunai Sri Lanka  0.3
27 Nov 2025 04:00 Pottuvil Sri Lanka  0.3
27 Nov 2025 16:00 Arukarkudah Sri Lanka  0.3
27 Nov 2025 14:00 Brynthuraichenai Sri Lanka  0.3
27 Nov 2025 03:00 Tondi India  0.3
27 Nov 2025 17:00 Ammanthanaveli Sri Lanka  0.2
28 Nov 2025 04:00 Kalpitiya Sri Lanka  0.2
28 Nov 2025 01:00 Ammapatam India  0.2
28 Nov 2025 01:00 Manamelkudi India  0.2
27 Nov 2025 14:00 Sittandy Sri Lanka  0.2
27 Nov 2025 10:00 Paddiruppu Sri Lanka  0.2
27 Nov 2025 09:00 Ambalam Sri Lanka  0.2
28 Nov 2025 03:00 Foul Point Sri Lanka  0.2
28 Nov 2025 02:00 Anaitivu Sri Lanka  0.2
27 Nov 2025 14:00 Vedakudiyiruppu Sri Lanka  0.2
27 Nov 2025 15:00 Pirappaiyadimadu Sri Lanka  0.2
28 Nov 2025 19:00 Alampil Sri Lanka  0.2
28 Nov 2025 01:00 Kattumavadi India  0.2
28 Nov 2025 11:00 Uppuveli Sri Lanka  0.2
29 Nov 2025 18:00 Pakala India  0.2
29 Nov 2025 18:00 Kottapatnam India  0.2
27 Nov 2025 04:00 New Tirrukkovil Sri Lanka  0.2
29 Nov 2025 18:00 Porto Novo India  0.2
29 Nov 2025 16:00 Tranquebar India  0.2
29 Nov 2025 16:00 Tarangambadi India  0.2
28 Nov 2025 15:00 Karuvaddukkeni Sri Lanka  0.2
29 Nov 2025 18:00 Chakicherla India  0.2
28 Nov 2025 01:00 Velangann India  0.2
29 Nov 2025 11:00 Nagappattinam India  0.2
27 Nov 2025 01:00 Yala Sri Lanka  0.2
27 Nov 2025 13:00 Batticaloa Sri Lanka  0.2
29 Nov 2025 13:00 Karaikal India  0.2
29 Nov 2025 13:00 Accarapatam India  0.2
28 Nov 2025 01:00 Pulmoddai Sri Lanka  0.2
28 Nov 2025 03:00 Analkaddimady Sri Lanka  0.2
28 Nov 2025 03:00 Walauttu Sri Lanka  0.2
28 Nov 2025 09:00 Trincomalee Sri Lanka  0.2
27 Nov 2025 12:00 Kottaippattanam India  0.2
29 Nov 2025 18:00 Ullapalem India  0.2
29 Nov 2025 18:00 Vatturupallepalem India  0.2
27 Nov 2025 13:00 Kattankudi Sri Lanka  0.2
27 Nov 2025 04:00 Akkaraipattu Sri Lanka  0.2
29 Nov 2025 18:00 Alleppey India  0.2
29 Nov 2025 18:00 Ambalapulai India  0.2
29 Nov 2025 18:00 Haripad India  0.2
29 Nov 2025 18:00 Kaveripattanam India  0.2
29 Nov 2025 18:00 Kayankulam India  0.2
29 Nov 2025 18:00 Karunagapalli India  0.2
29 Nov 2025 18:00 Govundlapalem India  0.2
29 Nov 2025 18:00 Kalapettai India  0.2
28 Nov 2025 01:00 Negombo Sri Lanka  0.2
29 Nov 2025 18:00 Marakkanam India  0.2
29 Nov 2025 20:00 Therunattam India  0.2
27 Nov 2025 03:00 Panama Sri Lanka  0.2
29 Nov 2025 18:00 Tirumullaivasal India  0.2
29 Nov 2025 18:00 Peddapatnam India  0.2
29 Nov 2025 18:00 Kelambakkam India  0.1
28 Nov 2025 14:00 Alankuda Sri Lanka  0.1
28 Nov 2025 14:00 Mudalaipalai Sri Lanka  0.1
28 Nov 2025 02:00 Amaikuli Sri Lanka  0.1
28 Nov 2025 14:00 Puttalam Sri Lanka  0.1
28 Nov 2025 14:00 Karadipuval Sri Lanka  0.1
29 Nov 2025 18:00 Mahabalipuram India  0.1
27 Nov 2025 13:00 Durgarajupatnam India  0.1
29 Nov 2025 18:00 Kodur India  0.1
29 Nov 2025 19:00 Purnankuppam India  0.1
28 Nov 2025 01:00 Kirinda Sri Lanka  0.1
29 Nov 2025 18:00 Cuddalore India  0.1
29 Nov 2025 18:00 Chennai India  0.1
29 Nov 2025 18:00 Tiruvottiyur India  0.1
27 Nov 2025 01:00 Hambantota Sri Lanka  0.1
30 Nov 2025 00:00 Bisarikati Charkhanda Bangladesh  0.1
30 Nov 2025 00:00 Mehdigunj Bangladesh  0.1
30 Nov 2025 00:00 Mahisha Gagaria Bangladesh  0.1
30 Nov 2025 00:00 Char Nandanpur Bangladesh  0.1
30 Nov 2025 00:00 Char Chandra Prasad Bangladesh  0.1
30 Nov 2025 00:00 Char Kali Bangladesh  0.1
30 Nov 2025 00:00 Pangasia Bangladesh  0.1
30 Nov 2025 00:00 Jagannathpur Bangladesh  0.1
27 Nov 2025 23:00 Weligama Sri Lanka  0.1
27 Nov 2025 03:00 Okanda Sri Lanka  0.1
29 Nov 2025 18:00 Saint Thomas Mount India  0.1
29 Nov 2025 18:00 Madhavaram India  0.1
30 Nov 2025 04:00 Bhatkul Bangladesh  0.1
30 Nov 2025 04:00 Banari Bangladesh  0.1
30 Nov 2025 04:00 Naria Bangladesh  0.1
30 Nov 2025 05:00 Atpara Bangladesh  0.1
30 Nov 2025 04:00 Hogla Char Bangladesh  0.1
30 Nov 2025 04:00 Baghia Bangladesh  0.1
30 Nov 2025 05:00 Adam Manirabad Bangladesh  0.1
28 Nov 2025 01:00 Colombo Sri Lanka  0.1
28 Nov 2025 01:00 Dehiwala Sri Lanka  0.1
28 Nov 2025 01:00 Wattala Sri Lanka  0.1
28 Nov 2025 00:00 Ja-Ela Sri Lanka  0.1
27 Nov 2025 12:00 Kuvattur India  0.1
27 Nov 2025 15:00 Ennore India  0.1
29 Nov 2025 19:00 Bideipur India  0.1
30 Nov 2025 00:00 Andharmanik Bangladesh  0.1
30 Nov 2025 01:00 Bageswari Bangladesh  0.1
30 Nov 2025 00:00 Bausia Bangladesh  0.1
30 Nov 2025 01:00 Chandkati Bangladesh  0.1
30 Nov 2025 00:00 Char Hijla Bangladesh  0.1
30 Nov 2025 01:00 Bazemahal Bangladesh  0.1
30 Nov 2025 00:00 Chandpur Bangladesh  0.1
30 Nov 2025 00:00 Harni Bangladesh  0.1
30 Nov 2025 00:00 Goal Bhaor Bangladesh  0.1
30 Nov 2025 00:00 Char Medua Bangladesh  0.1
30 Nov 2025 01:00 South Dighaldi Bangladesh  0.1
30 Nov 2025 01:00 Sakusia Bangladesh  0.1
30 Nov 2025 01:00 Baga Bangladesh  0.1
30 Nov 2025 01:00 Kalupura Bangladesh  0.1
30 Nov 2025 01:00 Bara Pata Bangladesh  0.1
30 Nov 2025 00:00 Char Bansi Bangladesh  0.1
30 Nov 2025 00:00 Char Munsi Bangladesh  0.1
30 Nov 2025 00:00 Char Lakshmi Bangladesh  0.1
30 Nov 2025 00:00 Hazari Bangladesh  0.1
30 Nov 2025 00:00 Majanadi Bangladesh  0.1
30 Nov 2025 01:00 Char Madhyam Lamchhidhali Bangladesh  0.1
30 Nov 2025 01:00 Hazipur Bangladesh  0.1
30 Nov 2025 01:00 Chandpur Bangladesh  0.1
30 Nov 2025 00:00 Char Lawrence Bangladesh  0.1
30 Nov 2025 00:00 Char Falcon Bangladesh  0.1
30 Nov 2025 01:00 Rabipur Bangladesh  0.1
30 Nov 2025 01:00 Chiladi Bangladesh  0.1
30 Nov 2025 01:00 Char Kadira Bangladesh  0.1
30 Nov 2025 01:00 Char Algi Bangladesh  0.1
30 Nov 2025 01:00 Char Gazi Bangladesh  0.1
30 Nov 2025 02:00 Char Lakshmi Bangladesh  0.1
30 Nov 2025 02:00 Kanchanpur Bangladesh  0.1
30 Nov 2025 02:00 Char Manpura Bangladesh  0.1
30 Nov 2025 02:00 Miar Hat Bangladesh  0.1
30 Nov 2025 02:00 Char Ramiz Bangladesh  0.1
30 Nov 2025 02:00 Char Bedama Bangladesh  0.1
30 Nov 2025 02:00 Dasher Hat Bangladesh  0.1
30 Nov 2025 02:00 Chandhuri Hat Bangladesh  0.1
29 Nov 2025 20:00 Char Pyarimohan Bangladesh  0.1
29 Nov 2025 20:00 Char Annadaprasad Bangladesh  0.1
29 Nov 2025 20:00 Char Faizuddin Bangladesh  0.1
29 Nov 2025 20:00 Char Krishnaprasad Bangladesh  0.1
29 Nov 2025 19:00 Rasalpur India  0.1
29 Nov 2025 19:00 Chandipur India  0.1
28 Nov 2025 02:00 Beruwala Sri Lanka  0.1
30 Nov 2025 00:00 Nilkamal Bangladesh  0.1
30 Nov 2025 00:00 Fatehjangpur Bangladesh  0.1
30 Nov 2025 00:00 Chandpur Bangladesh  0.1
30 Nov 2025 00:00 Mahishkhola Bangladesh  0.1
30 Nov 2025 00:00 Char Haim Bangladesh  0.1
30 Nov 2025 05:00 Char Tarabania Bangladesh  0.1
30 Nov 2025 05:00 Adhara Bangladesh  0.1