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 65 km/h
Maximum storm surge 0.5 m (29 Nov 18:30 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 65 km/h 0.5 m 124 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 12:00 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 61 - - - - - - -
GREEN 7 29 Nov 2025 12:00 65 - - - - - - -
Download:





Impact estimation for the next 72h




Rain exposed population - AoIs

Estimations based on the bulletin of 29 Nov 2025 12:00 UTC
LevelCountryPopulation 
100-250 mmIndia7,930,486 
50-100 mmIndia, Sri Lanka, Maldives, Indonesia49,617,248
+
India49,558,229 
Other countries402 
Sri Lanka12,046 
Maldives46,321 
Indonesia248 

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 00:00 142 1.3 million
- - - - India, Sri Lanka, Maldives, Other countries
Blue 7 29 Nov 2025 12:00 520 7.9 million
- - - - India, Other countries, Sri Lanka, Maldives, Indonesia




Impact estimation for the next 72h

StormSurge

0.5 m

The maximum Storm surge height is  0.5m in Nawaladi, Sri Lanka. This height is estimated for 29 Nov 2025 18:30 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 12:00 UTC
    
Level Date (UTC) Name Country Storm surge height (m)
29 Nov 2025 18:30 Nawaladi Sri Lanka  0.5
29 Nov 2025 18:30 Pooneryn Sri Lanka  0.5
29 Nov 2025 18:30 Aliavalai Sri Lanka  0.5
29 Nov 2025 16:45 Kiranchi Sri Lanka  0.5
29 Nov 2025 16:45 Kavutarimunai Sri Lanka  0.5
29 Nov 2025 18:45 Idaikkadu Sri Lanka  0.5
29 Nov 2025 18:45 Ampan Sri Lanka  0.5
29 Nov 2025 12:00 Attimoddai Sri Lanka  0.5
29 Nov 2025 12:00 Vellankulam Sri Lanka  0.5
29 Nov 2025 12:00 Mannar Sri Lanka  0.4
29 Nov 2025 12:00 Periyavilankuli Sri Lanka  0.4
29 Nov 2025 12:00 Chiruttoppu Sri Lanka  0.4
29 Nov 2025 15:45 Jaffna Sri Lanka  0.4
29 Nov 2025 15:45 Kurichchikadu Sri Lanka  0.3
29 Nov 2025 15:15 Kayts Sri Lanka  0.3
29 Nov 2025 15:15 Kankesanturai Sri Lanka  0.3
29 Nov 2025 13:45 Point Pedro Sri Lanka  0.3
29 Nov 2025 12:15 Talaimannar Sri Lanka  0.2
29 Nov 2025 12:30 Delft Centre Sri Lanka  0.2
29 Nov 2025 17:00 Silavatturai Sri Lanka  0.2
29 Nov 2025 15:00 Chundikkulam Sri Lanka  0.2
29 Nov 2025 13:30 Damathat Myanmar  0.2
29 Nov 2025 13:30 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 Pauktaw Myanmar  0.1
29 Nov 2025 13:30 Zokali Myanmar  0.1
29 Nov 2025 13:30 Taungxun Myanmar  0.1
29 Nov 2025 15:00 Karaikal India  0.1
29 Nov 2025 15:00 Accarapatam India  0.1
29 Nov 2025 15:00 Nagappattinam India  0.1
29 Nov 2025 15:00 Tranquebar India  0.1
29 Nov 2025 15:00 Tarangambadi India  0.1
29 Nov 2025 14:30 Kodigeri India  0.1
29 Nov 2025 14:30 Vedaranyam India  0.1
29 Nov 2025 14:30 Vedaranniyam India  0.1
29 Nov 2025 13:15 Mahameik Myanmar  0.1
29 Nov 2025 13:15 Thamaseikta Myanmar  0.1
01 Dec 2025 09:00 Durgarajupatnam India  0.1
29 Nov 2025 13:15 Taunggyi Myanmar  0.1
29 Nov 2025 13:15 Budin Myanmar  0.1
29 Nov 2025 13:15 Kadaik Myanmar  0.1
29 Nov 2025 13:00 Kangyisu Myanmar  0.1
02 Dec 2025 11:45 Kwanhla Myanmar  0.1
02 Dec 2025 11:45 Tagukana Myanmar  0.1
02 Dec 2025 11:45 Kyaikkami Myanmar  0.1
02 Dec 2025 11:45 Hpayagon Myanmar  0.1
29 Nov 2025 16:30 Anaippapan Sri Lanka  0.1
29 Nov 2025 13:30 Velangann India  0.1
29 Nov 2025 13:30 Tanbingyaung Myanmar  0.1
30 Nov 2025 02:45 Kuvattur India  0.1
30 Nov 2025 02:45 Mahabalipuram India  0.1
29 Nov 2025 14:30 Kaveripattanam India  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 15:15 Porto Novo India  0.1
29 Nov 2025 12:45 Darein Myanmar  0.1
30 Nov 2025 11:30 Therunattam India  0.1
29 Nov 2025 17:45 Kelambakkam India  0.1
29 Nov 2025 13:15 Tirumullaivasal India  0.1
30 Nov 2025 13:15 Peureulak Indonesia  0.1
30 Nov 2025 19:00 Kottapatnam India  0.1
01 Dec 2025 11:00 Vatturupallepalem India  0.1
29 Nov 2025 12:45 Shangyaung Myanmar  0.1
29 Nov 2025 12:00 Pomparippu Sri Lanka  0.1
29 Nov 2025 12:45 Khindan Myanmar  0.1
29 Nov 2025 14:30 Cuddalore India  0.1
29 Nov 2025 14:30 Purnankuppam India  0.1
29 Nov 2025 12:45 Paung Myanmar  0.1
29 Nov 2025 14:00 Chalai Sri Lanka  0.1
29 Nov 2025 12:00 Alampil Sri Lanka  0.1
29 Nov 2025 12:00 Karuvaddukkeni Sri Lanka  0.1
01 Dec 2025 12:45 Govundlapalem India  0.1
30 Nov 2025 06:15 Wadgam India  0.1
30 Nov 2025 06:15 Kambhat India  0.1
30 Nov 2025 06:15 Kavi India  0.1
30 Nov 2025 06:15 Sarod India  0.1
01 Dec 2025 13:30 Kala-ywa Myanmar  0.1
01 Dec 2025 13:30 Ase-ywa Myanmar  0.1
02 Dec 2025 11:30 Munaing Myanmar  0.1
02 Dec 2025 11:30 Daingwunkwin Myanmar  0.1
30 Nov 2025 11:30 Saint Thomas Mount India  0.1
30 Nov 2025 11:30 Madhavaram India  0.1
30 Nov 2025 11:30 Chennai India  0.1
30 Nov 2025 11:30 Tiruvottiyur India  0.1
30 Nov 2025 11:30 Ennore India  0.1
02 Dec 2025 11:30 Kayindaung Myanmar  0.1
30 Nov 2025 11:00 Kakinada India  0.1
29 Nov 2025 23:30 Thoothukkudi India  0.1
30 Nov 2025 19:30 Pakala India  0.1
01 Dec 2025 11:15 Chakicherla India  0.1
01 Dec 2025 11:15 Ullapalem India  0.1
01 Dec 2025 08:45 Gosongtelaga Indonesia  0.1
01 Dec 2025 08:45 Silabuhan Indonesia  0.1
29 Nov 2025 22:45 Mumbai India  0.1
29 Nov 2025 22:45 Asumumbay India  0.1
29 Nov 2025 22:45 Mandve India  0.1
29 Nov 2025 22:45 Uran India  0.1
29 Nov 2025 22:45 Trombay India  0.1
29 Nov 2025 22:45 Taloje India  0.1
02 Dec 2025 11:00 Wagaru Myanmar  0.1
02 Dec 2025 11:00 Wegalaung Myanmar  0.1
02 Dec 2025 11:00 Karokpi Myanmar  0.1
01 Dec 2025 15:00 Thaunggon Myanmar  0.1
01 Dec 2025 15:00 Kyauktan Myanmar  0.1
01 Dec 2025 15:00 Mibya Myanmar  0.1
29 Nov 2025 22:45 Diva India  0.1