Overall Red alert Tropical Cyclone for NIVAR-20
in India
23 Nov 2020 18 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 GFS
Exposed countries India, Sri Lanka
Exposed population No people in Category 1 or higher
Maximum wind speed 76 km/h
Maximum storm surge 1.0 m (25 Nov 09:15 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
GFS Current 76 km/h 1.0 m 21 mm 0.5
GFS Overall 144 km/h 0.5 m 787 mm 0.5

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

TOP

Wind

144 km/h

Up to 4.5 million can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 23 Nov 2020 18:00 UTC
CategoryCountryPopulation 
Tropical StormIndia, Sri Lanka4,475,338
+
India3,704,168 
Sri Lanka771,170 

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 12:00 65 - - - - - - -
GREEN 2 23 Nov 2020 18:00 115 -
- - - - - India, Sri Lanka
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 23 Nov 2020 18:00 UTC
LevelCountryPopulation 
250-500 mmIndia, Sri Lanka2,243,822
+
India2,122,486 
Sri Lanka121,336 
100-250 mmIndia, Sri Lanka23,014,615
+
India22,261,995 
Sri Lanka752,620 
50-100 mmIndia, Sri Lanka51,383,754
+
India51,277,470 
Sri Lanka106,284 

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 12:00 18 - - - - - - -
Blue 2 23 Nov 2020 18:00 606 25.3 million
- - - India, Sri Lanka




Impact estimation for the next 72h
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StormSurge

1 m

The maximum Storm surge height is  1.0m in Pooneryn, Sri Lanka. This height is estimated for 25 Nov 2020 09:15 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 23 Nov 2020 18:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Nov 2020 09:15 Pooneryn Sri Lanka  1.0
25 Nov 2020 09:15 Aliavalai Sri Lanka  1.0
25 Nov 2020 09:30 Kavutarimunai Sri Lanka  0.9
25 Nov 2020 09:30 Nawaladi Sri Lanka  0.9
25 Nov 2020 08:45 Idaikkadu Sri Lanka  0.7
25 Nov 2020 08:45 Ampan Sri Lanka  0.7
25 Nov 2020 08:30 Jaffna Sri Lanka  0.6
25 Nov 2020 00:00 Mannar Sri Lanka  0.6
25 Nov 2020 00:00 Periyavilankuli Sri Lanka  0.6
25 Nov 2020 00:00 Attimoddai Sri Lanka  0.6
25 Nov 2020 00:00 Vellankulam Sri Lanka  0.6
25 Nov 2020 00:00 Kiranchi Sri Lanka  0.6
25 Nov 2020 10:45 Porto Novo India  0.5
25 Nov 2020 01:00 Chiruttoppu Sri Lanka  0.5
24 Nov 2020 23:15 Talaimannar Sri Lanka  0.3
24 Nov 2020 23:30 Kankesanturai Sri Lanka  0.3
24 Nov 2020 23:30 Point Pedro Sri Lanka  0.3
25 Nov 2020 08:00 Kayts Sri Lanka  0.3
24 Nov 2020 23:45 Kurichchikadu Sri Lanka  0.2
25 Nov 2020 13:45 Cuddalore India  0.2
25 Nov 2020 13:45 Purnankuppam India  0.2
26 Nov 2020 04:30 Kattumavadi India  0.2
26 Nov 2020 04:30 Atirampattinam India  0.2
24 Nov 2020 14:15 Chundikkulam Sri Lanka  0.2
24 Nov 2020 23:15 Silavatturai Sri Lanka  0.2
24 Nov 2020 23:15 Anaippapan Sri Lanka  0.2
24 Nov 2020 16:00 Muttupettai India  0.2
24 Nov 2020 16:00 Panalkkulam India  0.2
24 Nov 2020 16:00 Irumeni India  0.2
24 Nov 2020 16:00 Pamban India  0.2
25 Nov 2020 02:15 Karaikal India  0.2
25 Nov 2020 02:15 Accarapatam India  0.2
25 Nov 2020 02:15 Velangann India  0.2
25 Nov 2020 02:15 Nagappattinam India  0.2
25 Nov 2020 07:30 Tranquebar India  0.2
25 Nov 2020 07:30 Tarangambadi India  0.2
26 Nov 2020 04:30 Manamelkudi India  0.2
24 Nov 2020 23:00 Delft Centre Sri Lanka  0.2
25 Nov 2020 02:15 Vedaranyam India  0.2
25 Nov 2020 02:15 Vedaranniyam India  0.2
25 Nov 2020 02:15 Kodigeri India  0.2
25 Nov 2020 12:45 Pondicherry India  0.2
25 Nov 2020 12:45 Kalapettai India  0.2
26 Nov 2020 04:30 Ammapatam India  0.2
25 Nov 2020 07:15 Tirumullaivasal India  0.2
25 Nov 2020 07:15 Kaveripattanam India  0.2
24 Nov 2020 10:00 Therunattam India  0.2
24 Nov 2020 10:00 Ennore India  0.2
24 Nov 2020 14:15 Chalai Sri Lanka  0.2
25 Nov 2020 12:30 Marakkanam India  0.2
25 Nov 2020 12:30 Kuvattur India  0.2
24 Nov 2020 23:15 Pomparippu Sri Lanka  0.2
24 Nov 2020 15:00 Rameswaram India  0.2
24 Nov 2020 05:00 Mudalaipalai Sri Lanka  0.2
24 Nov 2020 05:00 Kalpitiya Sri Lanka  0.2
24 Nov 2020 05:00 Karadipuval Sri Lanka  0.2
25 Nov 2020 03:30 Mahabalipuram India  0.2
26 Nov 2020 05:15 Kottaippattanam India  0.2
24 Nov 2020 06:30 Durgarajupatnam India  0.1
23 Nov 2020 20:00 Namkhana India  0.1
23 Nov 2020 20:00 Bijavbati India  0.1
23 Nov 2020 19:15 Vatturupallepalem India  0.1
23 Nov 2020 19:15 Govundlapalem India  0.1
24 Nov 2020 00:00 Foul Point Sri Lanka  0.1
24 Nov 2020 00:00 Anaitivu Sri Lanka  0.1
24 Nov 2020 01:45 Ammanthanaveli Sri Lanka  0.1
25 Nov 2020 16:30 Kelambakkam India  0.1
25 Nov 2020 16:30 Saint Thomas Mount India  0.1
25 Nov 2020 11:00 Madhavaram India  0.1
24 Nov 2020 02:00 Alampil Sri Lanka  0.1
24 Nov 2020 02:00 Karuvaddukkeni Sri Lanka  0.1
25 Nov 2020 16:30 Chennai India  0.1
23 Nov 2020 21:15 Chandkhali Bangladesh  0.1
23 Nov 2020 21:15 Kachupatra Bangladesh  0.1
23 Nov 2020 21:15 Char Chapli Bangladesh  0.1
23 Nov 2020 21:15 Bara Baliatali Bangladesh  0.1
23 Nov 2020 21:15 Kalapara Bangladesh  0.1
23 Nov 2020 21:15 Golbania Bangladesh  0.1
23 Nov 2020 21:15 Char Bagala Bangladesh  0.1
23 Nov 2020 21:15 Debpur Bangladesh  0.1
23 Nov 2020 21:15 Bhaylabania Bangladesh  0.1
23 Nov 2020 21:15 Chalitabunia Bangladesh  0.1
23 Nov 2020 21:15 Char Hare Bangladesh  0.1
23 Nov 2020 21:15 Neta Bangladesh  0.1
23 Nov 2020 21:15 Chhota Baisdia Bangladesh  0.1
23 Nov 2020 21:15 Arukarkudah Sri Lanka  0.1
23 Nov 2020 21:15 Pirappaiyadimadu Sri Lanka  0.1
23 Nov 2020 21:15 Brynthuraichenai Sri Lanka  0.1
23 Nov 2020 21:15 Sittandy Sri Lanka  0.1
24 Nov 2020 10:30 Akkaraipattu Sri Lanka  0.1
24 Nov 2020 10:30 New Tirrukkovil Sri Lanka  0.1
26 Nov 2020 05:00 Salaya India  0.1
26 Nov 2020 05:00 Jhankhar India  0.1
26 Nov 2020 05:00 Sika India  0.1
24 Nov 2020 16:30 Uppuveli Sri Lanka  0.1
24 Nov 2020 16:30 Trincomalee Sri Lanka  0.1
23 Nov 2020 20:00 Dubla Bangladesh  0.1
24 Nov 2020 15:00 Tirupalakudi India  0.1
26 Nov 2020 02:30 Kottapatnam India  0.1
25 Nov 2020 03:45 Satabhaya India  0.1
24 Nov 2020 03:15 Analkaddimady Sri Lanka  0.1
24 Nov 2020 03:15 Walauttu Sri Lanka  0.1
25 Nov 2020 08:00 Kakinada India  0.1