Overall Red alert Tropical Cyclone for NIVAR-20
in India
25 Nov 2020 00 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 97 km/h
Maximum storm surge 0.5 m (25 Nov 21:30 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 97 km/h 0.5 m 27 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 million can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 25 Nov 2020 00:00 UTC
CategoryCountryPopulation 
Tropical StormIndia1,999,909 

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 79 - - - - - - -
GREEN 5 25 Nov 2020 00:00 108 -
- - - - - India
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 25 Nov 2020 00:00 UTC
LevelCountryPopulation 
250-500 mmIndia3,857,388 
100-250 mmIndia55,802,277 
50-100 mmIndia51,869,635 

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 22 - - - - - - -
Blue 5 25 Nov 2020 00:00 431 59.7 million
- - - India




Impact estimation for the next 72h
TOP

StormSurge

0.5 m

The maximum Storm surge height is  0.5m in Marakkanam, India. This height is estimated for 25 Nov 2020 21:30 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 25 Nov 2020 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Nov 2020 21:30 Marakkanam India  0.5
25 Nov 2020 21:30 Kuvattur India  0.5
25 Nov 2020 21:15 Kalapettai India  0.4
25 Nov 2020 21:00 Pondicherry India  0.4
25 Nov 2020 06:30 Pooneryn Sri Lanka  0.3
25 Nov 2020 06:30 Aliavalai Sri Lanka  0.3
25 Nov 2020 19:30 Mahabalipuram India  0.3
25 Nov 2020 08:15 Kavutarimunai Sri Lanka  0.3
25 Nov 2020 08:15 Nawaladi Sri Lanka  0.3
26 Nov 2020 00:30 Durgarajupatnam India  0.3
25 Nov 2020 20:15 Purnankuppam India  0.3
25 Nov 2020 00:00 Mannar Sri Lanka  0.3
25 Nov 2020 00:00 Periyavilankuli Sri Lanka  0.3
25 Nov 2020 00:00 Attimoddai Sri Lanka  0.3
25 Nov 2020 00:00 Vellankulam Sri Lanka  0.3
25 Nov 2020 12:00 Therunattam India  0.3
25 Nov 2020 12:00 Ennore India  0.3
25 Nov 2020 20:00 Cuddalore India  0.3
25 Nov 2020 17:15 Kelambakkam India  0.3
25 Nov 2020 17:15 Saint Thomas Mount India  0.3
25 Nov 2020 17:15 Madhavaram India  0.3
25 Nov 2020 17:15 Chennai India  0.3
25 Nov 2020 00:00 Kiranchi Sri Lanka  0.2
25 Nov 2020 08:00 Idaikkadu Sri Lanka  0.2
25 Nov 2020 08:00 Ampan Sri Lanka  0.2
25 Nov 2020 01:00 Chiruttoppu Sri Lanka  0.2
26 Nov 2020 17:30 Chakicherla India  0.2
26 Nov 2020 17:30 Vatturupallepalem India  0.2
26 Nov 2020 17:30 Ullapalem India  0.2
26 Nov 2020 17:30 Pakala India  0.2
25 Nov 2020 21:30 Tiruvottiyur India  0.2
26 Nov 2020 18:00 Kottapatnam India  0.2
25 Nov 2020 14:15 Talaimannar Sri Lanka  0.2
25 Nov 2020 07:30 Jaffna Sri Lanka  0.2
25 Nov 2020 17:15 Porto Novo India  0.2
25 Nov 2020 14:45 Tirumullaivasal India  0.2
25 Nov 2020 14:30 Kakinada India  0.2
25 Nov 2020 14:00 Kaveripattanam India  0.2
25 Nov 2020 02:00 Point Pedro Sri Lanka  0.1
26 Nov 2020 05:15 Govundlapalem India  0.1
26 Nov 2020 04:30 Kodur India  0.1
27 Nov 2020 14:30 Satabhaya India  0.1
25 Nov 2020 13:30 Tranquebar India  0.1
25 Nov 2020 13:30 Tarangambadi India  0.1
25 Nov 2020 02:45 Kankesanturai Sri Lanka  0.1
25 Nov 2020 14:00 Silavatturai Sri Lanka  0.1
27 Nov 2020 04:30 Nizampatam India  0.1
25 Nov 2020 13:15 Karaikal India  0.1
25 Nov 2020 02:30 Nagappattinam India  0.1
25 Nov 2020 01:15 Alampil Sri Lanka  0.1
25 Nov 2020 01:15 Karuvaddukkeni Sri Lanka  0.1
26 Nov 2020 14:00 Peddapatnam India  0.1
25 Nov 2020 01:45 Uppuveli Sri Lanka  0.1
25 Nov 2020 01:45 Trincomalee Sri Lanka  0.1
25 Nov 2020 01:45 Foul Point Sri Lanka  0.1
26 Nov 2020 10:30 Kodigeri India  0.1
25 Nov 2020 01:45 Chundikkulam Sri Lanka  0.1
26 Nov 2020 20:00 Kattumavadi India  0.1
26 Nov 2020 20:00 Atirampattinam India  0.1
25 Nov 2020 14:00 Anaippapan Sri Lanka  0.1
25 Nov 2020 13:15 Accarapatam India  0.1
25 Nov 2020 20:15 Pamban India  0.1
25 Nov 2020 20:15 Rameswaram India  0.1
25 Nov 2020 02:00 Vedaranyam India  0.1
25 Nov 2020 02:00 Vedaranniyam India  0.1
27 Nov 2020 14:00 Bideipur India  0.1
25 Nov 2020 00:00 Kayts Sri Lanka  0.1
25 Nov 2020 01:45 Velangann India  0.1
26 Nov 2020 20:00 Manamelkudi India  0.1
25 Nov 2020 20:00 Kilakarai India  0.1
25 Nov 2020 20:00 Muttupettai India  0.1
25 Nov 2020 20:00 Panalkkulam India  0.1
25 Nov 2020 20:00 Irumeni India  0.1
25 Nov 2020 09:00 Chittivalasa India  0.1
25 Nov 2020 09:00 Bhimunipatnam India  0.1
25 Nov 2020 09:00 Konada India  0.1
25 Nov 2020 17:00 Vembar India  0.1
25 Nov 2020 00:00 Mudalaipalai Sri Lanka  0.1
25 Nov 2020 00:00 Kalpitiya Sri Lanka  0.1
25 Nov 2020 00:00 Karadipuval Sri Lanka  0.1
25 Nov 2020 00:00 Pomparippu Sri Lanka  0.1
25 Nov 2020 20:00 Melmandai India  0.1
25 Nov 2020 01:45 Chalai Sri Lanka  0.1
25 Nov 2020 19:45 Sikkal India  0.1