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 HWRF
Exposed countries India, Sri Lanka
Exposed population No people in Category 1 or higher
Maximum wind speed 101 km/h
Maximum storm surge 0.5 m (25 Nov 07:45 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
HWRF Current 101 km/h 0.5 m 28 mm 0.5
HWRF Overall 137 km/h 0.8 m 917 mm 0.5

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

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Wind

137 km/h

Up to 1.9 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 StormIndia, Sri Lanka1,881,442
+
India1,687,822 
Sri Lanka193,620 

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 90 - - - - - - -
GREEN 2 23 Nov 2020 18:00 90 - - - - - - -
GREEN 3 24 Nov 2020 00:00 94 - - - - - - -
GREEN 4 24 Nov 2020 06:00 126 - - - - - - -
GREEN 5 24 Nov 2020 12:00 126 -
- - - - - 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 24 Nov 2020 12:00 UTC
LevelCountryPopulation 
750-1000 mmIndia76,675 
500-750 mmIndia905,636 
250-500 mmIndia4,824,996 
100-250 mmIndia, Sri Lanka29,331,913
+
India28,807,452 
Sri Lanka524,461 
50-100 mmIndia, Sri Lanka50,136,656
+
India48,815,032 
Sri Lanka1,321,624 

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 25 - - - - - - -
Blue 2 23 Nov 2020 18:00 25 - - - - - - -
Blue 3 24 Nov 2020 00:00 26 - - - - - - -
Blue 4 24 Nov 2020 06:00 35 - - - - - - -
Blue 5 24 Nov 2020 12:00 797 35.1 million
- India, Sri Lanka




Impact estimation for the next 72h
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StormSurge

0.5 m

The maximum Storm surge height is  0.5m in Pooneryn, Sri Lanka. This height is estimated for 25 Nov 2020 07:45 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 07:45 Pooneryn Sri Lanka  0.5
25 Nov 2020 07:45 Aliavalai Sri Lanka  0.5
25 Nov 2020 08:30 Kavutarimunai Sri Lanka  0.4
25 Nov 2020 08:30 Nawaladi Sri Lanka  0.4
24 Nov 2020 17:15 Chiruttoppu Sri Lanka  0.3
24 Nov 2020 17:15 Mannar Sri Lanka  0.3
24 Nov 2020 17:15 Periyavilankuli Sri Lanka  0.3
24 Nov 2020 17:15 Attimoddai Sri Lanka  0.3
24 Nov 2020 16:45 Vellankulam Sri Lanka  0.3
25 Nov 2020 11:45 Idaikkadu Sri Lanka  0.3
25 Nov 2020 11:45 Ampan Sri Lanka  0.3
26 Nov 2020 04:00 Kakinada India  0.3
24 Nov 2020 18:15 Kiranchi Sri Lanka  0.2
25 Nov 2020 18:15 Marakkanam India  0.2
25 Nov 2020 18:15 Kuvattur India  0.2
26 Nov 2020 03:15 Kottapatnam India  0.2
24 Nov 2020 17:00 Muttupettai India  0.2
24 Nov 2020 17:00 Panalkkulam India  0.2
24 Nov 2020 17:00 Irumeni India  0.2
24 Nov 2020 17:00 Pamban India  0.2
25 Nov 2020 11:30 Jaffna Sri Lanka  0.2
26 Nov 2020 03:30 Pakala India  0.2
25 Nov 2020 18:15 Pondicherry India  0.2
25 Nov 2020 18:15 Kalapettai India  0.2
25 Nov 2020 15:30 Purnankuppam India  0.2
25 Nov 2020 14:45 Mahabalipuram India  0.2
24 Nov 2020 19:00 Talaimannar Sri Lanka  0.2
25 Nov 2020 23:45 Chakicherla India  0.2
25 Nov 2020 23:45 Vatturupallepalem India  0.2
25 Nov 2020 21:00 Kelambakkam India  0.2
25 Nov 2020 21:00 Saint Thomas Mount India  0.2
25 Nov 2020 15:15 Cuddalore India  0.2
26 Nov 2020 00:00 Ullapalem India  0.2
25 Nov 2020 21:00 Madhavaram India  0.2
25 Nov 2020 21:00 Chennai India  0.2
25 Nov 2020 15:30 Porto Novo India  0.2
25 Nov 2020 12:30 Durgarajupatnam India  0.2
24 Nov 2020 16:15 Devipatam India  0.2
24 Nov 2020 16:15 Tirupalakudi India  0.2
25 Nov 2020 09:30 Karaikal India  0.2
25 Nov 2020 09:30 Tirumullaivasal India  0.2
25 Nov 2020 09:30 Kaveripattanam India  0.2
25 Nov 2020 09:30 Tranquebar India  0.2
25 Nov 2020 09:30 Tarangambadi India  0.2
24 Nov 2020 16:30 Rameswaram India  0.2
24 Nov 2020 12:15 Point Pedro Sri Lanka  0.2
26 Nov 2020 00:15 Govundlapalem India  0.2
24 Nov 2020 15:45 Okanda Sri Lanka  0.2
24 Nov 2020 15:45 Panama Sri Lanka  0.2
24 Nov 2020 15:45 Pottuvil Sri Lanka  0.2
24 Nov 2020 12:30 Kankesanturai Sri Lanka  0.2
25 Nov 2020 20:45 Tiruvottiyur India  0.2
25 Nov 2020 21:15 Ennore India  0.2
24 Nov 2020 12:45 Chundikkulam Sri Lanka  0.2
24 Nov 2020 12:45 Chalai Sri Lanka  0.2
24 Nov 2020 12:15 Alampil Sri Lanka  0.2
25 Nov 2020 03:30 Therunattam India  0.1
25 Nov 2020 09:15 Nagappattinam India  0.1
24 Nov 2020 12:45 Anaitivu Sri Lanka  0.1
24 Nov 2020 12:45 Ammanthanaveli Sri Lanka  0.1
25 Nov 2020 09:45 Accarapatam India  0.1
24 Nov 2020 14:45 Arukarkudah Sri Lanka  0.1
24 Nov 2020 13:15 Kayts Sri Lanka  0.1
26 Nov 2020 09:00 Nizampatam India  0.1
24 Nov 2020 12:45 Velangann India  0.1
24 Nov 2020 18:45 Mudalaipalai Sri Lanka  0.1
24 Nov 2020 18:45 Kalpitiya Sri Lanka  0.1
24 Nov 2020 18:45 Karadipuval Sri Lanka  0.1
24 Nov 2020 18:45 Pomparippu Sri Lanka  0.1
24 Nov 2020 12:15 Analkaddimady Sri Lanka  0.1
24 Nov 2020 12:15 Walauttu Sri Lanka  0.1
27 Nov 2020 09:45 Alibag India  0.1
27 Nov 2020 09:45 Mandve India  0.1
27 Nov 2020 09:45 Uran India  0.1
24 Nov 2020 12:30 Karuvaddukkeni Sri Lanka  0.1
24 Nov 2020 16:30 Uppuveli Sri Lanka  0.1
24 Nov 2020 16:30 Trincomalee Sri Lanka  0.1
24 Nov 2020 16:30 Foul Point Sri Lanka  0.1
24 Nov 2020 18:45 Delft Centre Sri Lanka  0.1
26 Nov 2020 03:00 Kodur India  0.1
24 Nov 2020 19:15 Kurichchikadu Sri Lanka  0.1
24 Nov 2020 16:30 Pirappaiyadimadu Sri Lanka  0.1
24 Nov 2020 17:15 New Tirrukkovil Sri Lanka  0.1
26 Nov 2020 03:45 Salaya India  0.1
26 Nov 2020 03:45 Jhankhar India  0.1
26 Nov 2020 03:45 Sika India  0.1
24 Nov 2020 15:45 Tondi India  0.1
24 Nov 2020 15:45 Chittivalasa India  0.1
24 Nov 2020 15:45 Bhimunipatnam India  0.1
24 Nov 2020 15:45 Konada India  0.1
24 Nov 2020 13:00 Kodigeri India  0.1
24 Nov 2020 13:00 Vedaranyam India  0.1
24 Nov 2020 13:00 Vedaranniyam India  0.1
24 Nov 2020 12:45 Brynthuraichenai Sri Lanka  0.1
24 Nov 2020 12:45 Sittandy Sri Lanka  0.1
24 Nov 2020 23:30 Silavatturai Sri Lanka  0.1
24 Nov 2020 23:30 Anaippapan Sri Lanka  0.1
24 Nov 2020 15:45 Batticaloa Sri Lanka  0.1
24 Nov 2020 15:45 Kattankudi Sri Lanka  0.1
24 Nov 2020 15:45 Paddiruppu Sri Lanka  0.1
24 Nov 2020 14:45 Kirinda Sri Lanka  0.1
24 Nov 2020 14:45 Akkaraipattu Sri Lanka  0.1
24 Nov 2020 14:45 Ambalam Sri Lanka  0.1
27 Nov 2020 07:30 Satabhaya India  0.1
24 Nov 2020 14:30 Yala Sri Lanka  0.1
26 Nov 2020 09:15 Kottapalem India  0.1