Overall Red alert Tropical Cyclone for NIVAR-20
in India
25 Nov 2020 06 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
Exposed population No people in Category 1 or higher
Maximum wind speed 137 km/h
Maximum storm surge 0.4 m (25 Nov 08:00 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 137 km/h 0.4 m 38 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



Wind exposed population - AoIs

Estimations based on the bulletin of 25 Nov 2020 06:00 UTC
CategoryCountryPopulation 
Tropical StormIndia24,252,238 

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 12:00 101 - - - - - - -
GREEN 6 24 Nov 2020 18:00 108 - - - - - - -
GREEN 7 25 Nov 2020 00:00 126 -
- - - - - India
GREEN 8 25 Nov 2020 06:00 137 -
- - - - - India
Download:





Impact estimation for the next 72h
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Rainfall

917 mm

Up to 18.7 million can be affected rain lower than 100mm





Rain exposed population - AoIs

Estimations based on the bulletin of 25 Nov 2020 06:00 UTC
LevelCountryPopulation 
500-750 mmIndia201,374 
250-500 mmIndia6,998,043 
100-250 mmIndia44,015,978 
50-100 mmIndia18,729,702 

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 28 - - - - - - -
Blue 6 24 Nov 2020 18:00 30 - - - - - - -
Blue 7 25 Nov 2020 00:00 35 30 thousand - - - - - - India
Blue 8 25 Nov 2020 06:00 673 51.2 million
- - India




Impact estimation for the next 72h
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StormSurge

0.4 m

The maximum Storm surge height is  0.4m in Therunattam, India. This height is estimated for 25 Nov 2020 08:00 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 06:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Nov 2020 08:00 Therunattam India  0.4
25 Nov 2020 08:00 Ennore India  0.4
25 Nov 2020 18:15 Kelambakkam India  0.4
25 Nov 2020 18:15 Saint Thomas Mount India  0.4
25 Nov 2020 18:15 Madhavaram India  0.4
25 Nov 2020 14:15 Durgarajupatnam India  0.4
25 Nov 2020 20:30 Kuvattur India  0.4
25 Nov 2020 20:30 Mahabalipuram India  0.4
25 Nov 2020 21:00 Chennai India  0.4
26 Nov 2020 06:45 Kottapatnam India  0.4
26 Nov 2020 09:15 Kakinada India  0.3
25 Nov 2020 21:30 Tiruvottiyur India  0.3
26 Nov 2020 00:00 Chakicherla India  0.3
26 Nov 2020 00:00 Vatturupallepalem India  0.3
25 Nov 2020 09:45 Govundlapalem India  0.3
26 Nov 2020 15:45 Ullapalem India  0.3
26 Nov 2020 15:45 Pakala India  0.3
26 Nov 2020 06:45 Nizampatam India  0.3
25 Nov 2020 09:15 Arukarkudah Sri Lanka  0.3
25 Nov 2020 09:15 Pirappaiyadimadu Sri Lanka  0.3
25 Nov 2020 09:15 Brynthuraichenai Sri Lanka  0.3
25 Nov 2020 09:15 Sittandy Sri Lanka  0.3
25 Nov 2020 11:00 Purnankuppam India  0.3
25 Nov 2020 11:00 Pondicherry India  0.3
25 Nov 2020 11:00 Kalapettai India  0.3
25 Nov 2020 13:15 Marakkanam India  0.2
26 Nov 2020 08:45 Kodur India  0.2
25 Nov 2020 09:00 Uppuveli Sri Lanka  0.2
25 Nov 2020 09:00 Trincomalee Sri Lanka  0.2
25 Nov 2020 09:00 Foul Point Sri Lanka  0.2
25 Nov 2020 07:00 Alampil Sri Lanka  0.2
25 Nov 2020 07:00 Karuvaddukkeni Sri Lanka  0.2
25 Nov 2020 08:30 Pooneryn Sri Lanka  0.2
25 Nov 2020 08:30 Aliavalai Sri Lanka  0.2
25 Nov 2020 08:00 Tirumullaivasal India  0.2
25 Nov 2020 08:00 Kaveripattanam India  0.2
25 Nov 2020 13:15 Kavutarimunai Sri Lanka  0.2
25 Nov 2020 13:15 Nawaladi Sri Lanka  0.2
26 Nov 2020 18:45 Kottapalem India  0.2
25 Nov 2020 07:15 Cuddalore India  0.2
25 Nov 2020 08:30 Analkaddimady Sri Lanka  0.2
25 Nov 2020 08:30 Walauttu Sri Lanka  0.2
26 Nov 2020 18:45 Lankavanidibba India  0.2
25 Nov 2020 12:15 Anaitivu Sri Lanka  0.2
25 Nov 2020 12:15 Ammanthanaveli Sri Lanka  0.2
25 Nov 2020 08:15 Paddiruppu Sri Lanka  0.2
25 Nov 2020 08:15 Kalmunai Sri Lanka  0.2
25 Nov 2020 08:15 Ambalam Sri Lanka  0.2
25 Nov 2020 12:15 Idaikkadu Sri Lanka  0.2
25 Nov 2020 12:15 Ampan Sri Lanka  0.2
25 Nov 2020 08:30 Antarvedi India  0.2
25 Nov 2020 08:30 Bandamurlanka India  0.2
25 Nov 2020 06:45 Pulmoddai Sri Lanka  0.2
25 Nov 2020 07:45 Vedakudiyiruppu Sri Lanka  0.2
25 Nov 2020 07:45 Batticaloa Sri Lanka  0.2
25 Nov 2020 07:45 Kattankudi Sri Lanka  0.2
26 Nov 2020 16:15 Peddapatnam India  0.2
25 Nov 2020 11:45 Porto Novo India  0.2
25 Nov 2020 12:00 Jaffna Sri Lanka  0.2
25 Nov 2020 08:00 Nagappattinam India  0.2
25 Nov 2020 07:45 Tranquebar India  0.1
25 Nov 2020 07:45 Tarangambadi India  0.1
25 Nov 2020 07:30 Chundikkulam Sri Lanka  0.1
25 Nov 2020 06:30 Pottuvil Sri Lanka  0.1
25 Nov 2020 06:30 New Tirrukkovil Sri Lanka  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 14:00 Nuralrevu India  0.1
25 Nov 2020 10:30 Yala Sri Lanka  0.1
25 Nov 2020 07:15 Akkaraipattu Sri Lanka  0.1
25 Nov 2020 07:15 Karaikal India  0.1
25 Nov 2020 08:00 Pentakota India  0.1
25 Nov 2020 08:00 Venkatapuram India  0.1
25 Nov 2020 08:00 Pata Polvaram India  0.1
25 Nov 2020 07:45 Point Pedro Sri Lanka  0.1
25 Nov 2020 08:15 Kumana Sri Lanka  0.1
25 Nov 2020 08:15 Okanda Sri Lanka  0.1
25 Nov 2020 08:15 Panama Sri Lanka  0.1
25 Nov 2020 07:45 Accarapatam India  0.1
25 Nov 2020 07:45 Velangann India  0.1
27 Nov 2020 05:15 Satabhaya India  0.1
25 Nov 2020 14:15 Kulasekharapatnam India  0.1
25 Nov 2020 14:15 Tiruchendur India  0.1
25 Nov 2020 14:15 Kayalpatnam India  0.1
25 Nov 2020 07:15 Vedaranyam India  0.1
25 Nov 2020 07:15 Vedaranniyam India  0.1
25 Nov 2020 15:15 Hatagala Sri Lanka  0.1
25 Nov 2020 15:15 Hambantota Sri Lanka  0.1
25 Nov 2020 06:45 Chalai Sri Lanka  0.1
25 Nov 2020 16:45 Kirinda Sri Lanka  0.1
25 Nov 2020 11:30 Tangalla Sri Lanka  0.1
25 Nov 2020 09:45 Gollapalem India  0.1
27 Nov 2020 05:15 Bideipur India  0.1
25 Nov 2020 12:15 Srikurman India  0.1
25 Nov 2020 12:15 Kalingapatnam India  0.1
25 Nov 2020 13:30 Baruva India  0.1
26 Nov 2020 04:00 Salaya India  0.1
26 Nov 2020 04:00 Jhankhar India  0.1
26 Nov 2020 04:00 Sika India  0.1
25 Nov 2020 11:30 Kiranchi Sri Lanka  0.1
27 Nov 2020 10:15 Alibag India  0.1
27 Nov 2020 10:15 Mandve India  0.1
27 Nov 2020 10:15 Uran India  0.1
25 Nov 2020 19:15 Gopalpur India  0.1
25 Nov 2020 19:15 Chatrapur India  0.1
25 Nov 2020 18:00 Talaimannar Sri Lanka  0.1
25 Nov 2020 18:00 Chiruttoppu Sri Lanka  0.1
25 Nov 2020 18:00 Mannar Sri Lanka  0.1
25 Nov 2020 17:00 Periyavilankuli Sri Lanka  0.1
26 Nov 2020 13:45 Pudimadaka India  0.1
26 Nov 2020 13:45 Chipurupalle India  0.1