Overall Red alert Tropical Cyclone for NIVAR-20
in India
24 Nov 2020 12 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone NIVAR-20 can have a high humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source ECMWF
Exposed countries India
Exposed population No people in Category 1 or higher
Maximum wind speed 79 km/h
Maximum storm surge 0.5 m (25 Nov 23:15 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 79 km/h 0.5 m 22 mm 0.5
ECMWF Overall 97 km/h 0.4 m 493 mm 0.5

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

TOP

Wind

97 km/h

Up to 2.4 million can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 24 Nov 2020 12:00 UTC
CategoryCountryPopulation 
Tropical StormIndia2,436,704 

See TC classification SSHS


Wind Impact Timeline

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


Alert N° 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 23 Nov 2020 00:00 65 - - - - - - -
GREEN 2 23 Nov 2020 12:00 58 - - - - - - -
GREEN 3 24 Nov 2020 00:00 68 - - - - - - -
GREEN 4 24 Nov 2020 12:00 108 -
- - - - - India
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 24 Nov 2020 12:00 UTC
LevelCountryPopulation 
250-500 mmIndia2,133,148 
100-250 mmIndia, Sri Lanka50,803,193
+
India50,797,086 
Sri Lanka6,107 
50-100 mmIndia, Sri Lanka38,854,719
+
India38,362,022 
Sri Lanka492,697 

Rain Impact Timeline

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


Alert N° Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 23 Nov 2020 00:00 18 - - - - - - -
Blue 2 23 Nov 2020 12:00 16 - - - - - - -
Blue 3 24 Nov 2020 00:00 19 - - - - - - -
Blue 4 24 Nov 2020 12:00 417 52.9 million
- - - India, Sri Lanka




Impact estimation for the next 72h
TOP

StormSurge

0.5 m

The maximum Storm surge height is  0.5m in Kuvattur, India. This height is estimated for 25 Nov 2020 23:15 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 24 Nov 2020 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Nov 2020 23:15 Kuvattur India  0.5
25 Nov 2020 23:15 Mahabalipuram India  0.5
25 Nov 2020 21:30 Marakkanam India  0.4
25 Nov 2020 08:00 Pooneryn Sri Lanka  0.4
25 Nov 2020 08:00 Aliavalai Sri Lanka  0.4
25 Nov 2020 23:15 Kelambakkam India  0.4
25 Nov 2020 23:15 Saint Thomas Mount India  0.4
25 Nov 2020 08:30 Kavutarimunai Sri Lanka  0.4
25 Nov 2020 08:30 Nawaladi Sri Lanka  0.4
25 Nov 2020 23:30 Madhavaram India  0.4
25 Nov 2020 23:30 Chennai India  0.4
25 Nov 2020 22:45 Durgarajupatnam India  0.3
25 Nov 2020 05:45 Idaikkadu Sri Lanka  0.3
25 Nov 2020 05:45 Ampan Sri Lanka  0.3
24 Nov 2020 23:45 Mannar Sri Lanka  0.3
24 Nov 2020 23:45 Periyavilankuli Sri Lanka  0.3
24 Nov 2020 23:45 Attimoddai Sri Lanka  0.3
24 Nov 2020 23:45 Vellankulam Sri Lanka  0.3
25 Nov 2020 20:00 Therunattam India  0.3
25 Nov 2020 20:00 Ennore India  0.3
25 Nov 2020 23:30 Tiruvottiyur India  0.3
25 Nov 2020 20:15 Kalapettai India  0.3
24 Nov 2020 23:30 Kiranchi Sri Lanka  0.2
24 Nov 2020 13:45 Chiruttoppu Sri Lanka  0.2
25 Nov 2020 05:45 Jaffna Sri Lanka  0.2
25 Nov 2020 20:15 Pondicherry India  0.2
24 Nov 2020 13:30 Muttupettai India  0.2
24 Nov 2020 13:30 Panalkkulam India  0.2
24 Nov 2020 13:30 Irumeni India  0.2
24 Nov 2020 13:30 Pamban India  0.2
25 Nov 2020 19:15 Cuddalore India  0.2
25 Nov 2020 19:15 Purnankuppam India  0.2
26 Nov 2020 13:00 Kottapatnam India  0.2
26 Nov 2020 10:30 Chakicherla India  0.2
26 Nov 2020 10:30 Ullapalem India  0.2
26 Nov 2020 10:30 Pakala India  0.2
26 Nov 2020 07:45 Vatturupallepalem India  0.2
24 Nov 2020 19:00 Talaimannar Sri Lanka  0.2
24 Nov 2020 12:00 Kankesanturai Sri Lanka  0.2
24 Nov 2020 12:00 Point Pedro Sri Lanka  0.2
26 Nov 2020 19:00 Kattumavadi India  0.2
26 Nov 2020 19:00 Atirampattinam India  0.2
27 Nov 2020 12:00 Satabhaya India  0.2
26 Nov 2020 03:45 Kodur India  0.2
26 Nov 2020 18:00 Kodigeri India  0.2
25 Nov 2020 14:15 Porto Novo India  0.1
25 Nov 2020 11:00 Kakinada India  0.1
25 Nov 2020 14:30 Tirumullaivasal India  0.1
26 Nov 2020 18:45 Manamelkudi India  0.1
25 Nov 2020 14:00 Kaveripattanam India  0.1
24 Nov 2020 14:45 Chundikkulam Sri Lanka  0.1
24 Nov 2020 14:45 Chalai Sri Lanka  0.1
26 Nov 2020 18:45 Ammapatam India  0.1
25 Nov 2020 14:15 Tranquebar India  0.1
25 Nov 2020 14:15 Tarangambadi India  0.1
25 Nov 2020 12:00 Silavatturai Sri Lanka  0.1
25 Nov 2020 02:45 Kayts Sri Lanka  0.1
24 Nov 2020 12:45 Rameswaram India  0.1
25 Nov 2020 14:15 Karaikal India  0.1
24 Nov 2020 14:30 Velangann India  0.1
26 Nov 2020 02:30 Govundlapalem India  0.1
26 Nov 2020 20:45 Nizampatam India  0.1
26 Nov 2020 19:00 Kottaippattanam India  0.1
24 Nov 2020 23:30 Anaippapan Sri Lanka  0.1
27 Nov 2020 12:00 Bideipur India  0.1
24 Nov 2020 19:15 Kurichchikadu Sri Lanka  0.1
25 Nov 2020 14:15 Nagappattinam India  0.1
24 Nov 2020 13:45 Accarapatam India  0.1
24 Nov 2020 19:00 Delft Centre Sri Lanka  0.1
26 Nov 2020 20:45 Vedaranyam India  0.1
26 Nov 2020 20:45 Vedaranniyam India  0.1
24 Nov 2020 23:30 Mudalaipalai Sri Lanka  0.1
24 Nov 2020 23:30 Kalpitiya Sri Lanka  0.1
24 Nov 2020 23:30 Karadipuval Sri Lanka  0.1
24 Nov 2020 23:30 Pomparippu Sri Lanka  0.1
24 Nov 2020 13:00 Tirupalakudi India  0.1
24 Nov 2020 15:15 Foul Point Sri Lanka  0.1
24 Nov 2020 15:15 Anaitivu Sri Lanka  0.1
24 Nov 2020 13:15 Devipatam India  0.1