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 ECMWF
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 61 km/h
Maximum storm surge 0.6 m (29 Nov 00:00 UTC)
Vulnerability High (India)

GDACS Score

GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.
  Wind Storm surge Rainfall GDACS score
ECMWF Current 61 km/h 0.6 m 142 mm 0.5
ECMWF Overall 79 km/h 0.6 m 600 mm 0.5

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

Wind

79 km/h

No people by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 29 Nov 2025 00:00 UTC

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert Date (UTC) Max Winds (km/h) Pop in Cat. 1 or higher TS Cat. 1 Cat. 2 Cat. 3 Cat. 4 Cat. 5 Countries
GREEN 1 26 Nov 2025 12:00 68 - - - - - - -
GREEN 2 27 Nov 2025 00:00 72 - - - - - - -
GREEN 3 27 Nov 2025 12:00 79 -
- - - - - Sri Lanka, Other countries
GREEN 4 28 Nov 2025 00:00 72 -
- - - - - Sri Lanka, Other countries
GREEN 5 28 Nov 2025 12:00 76 -
- - - - - Sri Lanka, Other countries, India
GREEN 6 29 Nov 2025 00:00 65 - - - - - - -
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Impact estimation for the next 72h




Rain exposed population - AoIs

Estimations based on the bulletin of 29 Nov 2025 00:00 UTC
LevelCountryPopulation 
250-500 mmIndia416,194 
100-250 mmIndia, Maldives27,223,180
+
India27,221,147 
Maldives2,032 
50-100 mmIndia, Sri Lanka, Maldives52,281,460
+
India51,878,695 
Other countries1,153 
Sri Lanka90,613 
Maldives310,996 

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 26 Nov 2025 12:00 455 560 thousand
- - - Other countries, Sri Lanka, Indonesia
Blue 2 27 Nov 2025 00:00 240 4.2 million
- - - - Sri Lanka, Other countries
Blue 3 27 Nov 2025 12:00 285 8.5 million
- - - Sri Lanka, Other countries
Blue 4 28 Nov 2025 00:00 323 7.2 million
- - - Sri Lanka, Other countries
Blue 5 28 Nov 2025 12:00 230 740 thousand
- - - - India, Sri Lanka, Other countries
Blue 6 29 Nov 2025 00:00 425 27.6 million
- - - India, Other countries, Sri Lanka, Maldives




Impact estimation for the next 72h

StormSurge

0.6 m

The maximum Storm surge height is  0.6m in Chiruttoppu, Sri Lanka. This height is estimated for 29 Nov 2025 00:00 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.

Storm Surge Exposed population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 29 Nov 2025 00:00 UTC
    
Level Date (UTC) Name Country Storm surge height (m)
29 Nov 2025 00:00 Chiruttoppu Sri Lanka  0.6
29 Nov 2025 00:00 Mannar Sri Lanka  0.6
29 Nov 2025 00:00 Periyavilankuli Sri Lanka  0.6
29 Nov 2025 00:00 Attimoddai Sri Lanka  0.6
29 Nov 2025 00:00 Vellankulam Sri Lanka  0.6
29 Nov 2025 02:30 Kiranchi Sri Lanka  0.5
29 Nov 2025 02:00 Nawaladi Sri Lanka  0.5
29 Nov 2025 22:15 Pooneryn Sri Lanka  0.4
29 Nov 2025 22:15 Aliavalai Sri Lanka  0.4
29 Nov 2025 00:00 Talaimannar Sri Lanka  0.4
29 Nov 2025 22:30 Idaikkadu Sri Lanka  0.4
29 Nov 2025 22:30 Kavutarimunai Sri Lanka  0.4
29 Nov 2025 22:30 Ampan Sri Lanka  0.4
29 Nov 2025 00:15 Silavatturai Sri Lanka  0.3
29 Nov 2025 19:45 Jaffna Sri Lanka  0.3
29 Nov 2025 00:15 Pomparippu Sri Lanka  0.3
29 Nov 2025 00:15 Anaippapan Sri Lanka  0.3
29 Nov 2025 03:00 Kurichchikadu Sri Lanka  0.3
29 Nov 2025 03:00 Kayts Sri Lanka  0.3
29 Nov 2025 00:00 Delft Centre Sri Lanka  0.3
29 Nov 2025 20:15 Kankesanturai Sri Lanka  0.2
29 Nov 2025 00:15 Rameswaram India  0.2
29 Nov 2025 01:00 Mudalaipalai Sri Lanka  0.2
29 Nov 2025 01:00 Kalpitiya Sri Lanka  0.2
29 Nov 2025 01:00 Karadipuval Sri Lanka  0.2
29 Nov 2025 01:00 Point Pedro Sri Lanka  0.2
29 Nov 2025 00:30 Pamban India  0.2
29 Nov 2025 02:45 Velangann India  0.2
29 Nov 2025 03:00 Vedaranyam India  0.2
29 Nov 2025 03:00 Vedaranniyam India  0.2
29 Nov 2025 00:00 Alampil Sri Lanka  0.2
30 Nov 2025 13:15 Durgarajupatnam India  0.2
29 Nov 2025 03:15 Kodigeri India  0.2
29 Nov 2025 08:15 Chundikkulam Sri Lanka  0.2
29 Nov 2025 08:15 Chalai Sri Lanka  0.2
29 Nov 2025 02:30 Nagappattinam India  0.2
30 Nov 2025 23:45 Chakicherla India  0.2
30 Nov 2025 23:45 Vatturupallepalem India  0.2
30 Nov 2025 23:30 Ullapalem India  0.2
30 Nov 2025 23:30 Pakala India  0.2
29 Nov 2025 02:30 Accarapatam India  0.2
29 Nov 2025 13:45 Shwe-o Myanmar  0.2
29 Nov 2025 13:45 Alanbya Myanmar  0.2
29 Nov 2025 13:45 Kyaikto Myanmar  0.2
29 Nov 2025 13:45 Kyaikpi Myanmar  0.2
29 Nov 2025 13:45 Kawbein Myanmar  0.2
29 Nov 2025 13:30 Damathat Myanmar  0.2
29 Nov 2025 13:30 Pauktaw Myanmar  0.1
29 Nov 2025 13:30 Zokali Myanmar  0.1
29 Nov 2025 13:30 Taungxun Myanmar  0.1
01 Dec 2025 02:00 Kottapatnam India  0.1
29 Nov 2025 01:00 Irumeni India  0.1
29 Nov 2025 13:15 Mahameik Myanmar  0.1
29 Nov 2025 13:15 Thamaseikta Myanmar  0.1
29 Nov 2025 13:00 Budin Myanmar  0.1
29 Nov 2025 13:00 Kadaik Myanmar  0.1
29 Nov 2025 13:00 Kangyisu Myanmar  0.1
29 Nov 2025 13:15 Taunggyi Myanmar  0.1
30 Nov 2025 10:15 Therunattam India  0.1
29 Nov 2025 02:00 Panalkkulam India  0.1
29 Nov 2025 13:30 Tanbingyaung Myanmar  0.1
29 Nov 2025 01:45 Pulmoddai Sri Lanka  0.1
29 Nov 2025 01:45 Analkaddimady Sri Lanka  0.1
29 Nov 2025 01:45 Walauttu Sri Lanka  0.1
29 Nov 2025 02:15 Karaikal India  0.1
29 Nov 2025 02:15 Tranquebar India  0.1
29 Nov 2025 02:15 Tarangambadi India  0.1
29 Nov 2025 12:45 Darein Myanmar  0.1
29 Nov 2025 23:30 Pondicherry India  0.1
29 Nov 2025 23:30 Kalapettai India  0.1
29 Nov 2025 23:30 Marakkanam India  0.1
29 Nov 2025 10:45 Karuvaddukkeni Sri Lanka  0.1
30 Nov 2025 02:30 Kuvattur India  0.1
30 Nov 2025 02:30 Mahabalipuram India  0.1
29 Nov 2025 13:45 Porto Novo India  0.1
29 Nov 2025 12:45 Shangyaung Myanmar  0.1
29 Nov 2025 13:00 Khindan Myanmar  0.1
29 Nov 2025 05:00 Gosongtelaga Indonesia  0.1
29 Nov 2025 05:00 Silabuhan Indonesia  0.1
29 Nov 2025 12:45 Paung Myanmar  0.1
29 Nov 2025 12:15 Tirumullaivasal India  0.1
29 Nov 2025 12:15 Kaveripattanam India  0.1
29 Nov 2025 00:00 Uppuveli Sri Lanka  0.1
29 Nov 2025 00:00 Trincomalee Sri Lanka  0.1
29 Nov 2025 00:00 Foul Point Sri Lanka  0.1
29 Nov 2025 05:00 Pasar Singkil Indonesia  0.1
30 Nov 2025 02:30 Kelambakkam India  0.1
29 Nov 2025 12:00 Kwanhla Myanmar  0.1
29 Nov 2025 12:00 Tagukana Myanmar  0.1
29 Nov 2025 12:00 Kyaikkami Myanmar  0.1
29 Nov 2025 12:00 Hpayagon Myanmar  0.1
01 Dec 2025 05:15 Wadgam India  0.1
01 Dec 2025 05:15 Kambhat India  0.1
01 Dec 2025 05:15 Kavi India  0.1
01 Dec 2025 05:15 Sarod India  0.1
29 Nov 2025 00:30 Alankuda Sri Lanka  0.1
29 Nov 2025 00:30 Amaikuli Sri Lanka  0.1
29 Nov 2025 00:30 Puttalam Sri Lanka  0.1
29 Nov 2025 12:00 Munaing Myanmar  0.1
30 Nov 2025 10:45 Kakinada India  0.1
30 Nov 2025 11:45 Saint Thomas Mount India  0.1
30 Nov 2025 11:45 Madhavaram India  0.1
30 Nov 2025 11:45 Chennai India  0.1
30 Nov 2025 11:45 Tiruvottiyur India  0.1
30 Nov 2025 11:45 Ennore India  0.1
30 Nov 2025 07:45 Peureulak Indonesia  0.1
30 Nov 2025 22:45 Govundlapalem India  0.1
29 Nov 2025 22:45 Cuddalore India  0.1
29 Nov 2025 22:45 Purnankuppam India  0.1
29 Nov 2025 11:45 Daingwunkwin Myanmar  0.1
30 Nov 2025 13:00 Sibsa Point Bangladesh  0.1
30 Nov 2025 13:00 Dubla Bangladesh  0.1
30 Nov 2025 14:45 Kodur India  0.1