Overall Red alert Tropical Cyclone for NIVAR-20
in India

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 0.8 m (25 Nov 18:45 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 0.4 m 897 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)



Wind exposed population

Estimations based on the bulletin of 26 Nov 2020 00:00 UTC
CategoryCountryPopulation 
Tropical StormIndia25441894 

See TC classification SSHS


Wind Impact Timeline

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


Alert 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
GREEN 9 25 Nov 2020 12:00 119 -
- - - - - India
GREEN 10 25 Nov 2020 18:00 137 -
- - - - - India
GREEN 11 26 Nov 2020 00:00 101 -
- - - - - India




Impact estimation for the next 72h

Rainfall

917 mm

Up to 48.5 million can be affected by rain higher than 100mm (see SSHS)





Rain exposed population

Estimations based on the bulletin of 26 Nov 2020 00:00 UTC
LevelCountryPopulation 
750-1000 mmIndia127697 
500-750 mmIndia1146915 
250-500 mmIndia4815919 
100-250 mmIndia42421663 
50-100 mmIndia, Sri Lanka32936598
+
India32720949 
Sri Lanka215649 

Rain Impact Timeline

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


Alert 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 38 10 thousand - - - - - - India
Blue 9 25 Nov 2020 12:00 33 12.1 million - - - - - - India
Blue 10 25 Nov 2020 18:00 38 12.9 million - - - - - - India
Blue 11 26 Nov 2020 00:00 897 23.3 million
- India




Impact estimation for the next 72h

StormSurge

0.8 m

The maximum Storm surge height is  0.8m in Marakkanam, India. This height is estimated for 25 Nov 2020 18:45 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.

Calculation based on the bulletin of 26 Nov 2020 00:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
25 Nov 2020 18:45 Marakkanam India  0.8
25 Nov 2020 18:45 Kuvattur India  0.8
25 Nov 2020 18:45 Pondicherry India  0.7
25 Nov 2020 18:45 Kalapettai India  0.7
25 Nov 2020 18:45 Mahabalipuram India  0.6
25 Nov 2020 18:45 Purnankuppam India  0.5
25 Nov 2020 19:00 Durgarajupatnam India  0.5
25 Nov 2020 19:15 Kelambakkam India  0.5
25 Nov 2020 18:45 Saint Thomas Mount India  0.5
25 Nov 2020 18:45 Madhavaram India  0.5
25 Nov 2020 18:45 Chennai India  0.5
25 Nov 2020 08:00 Therunattam India  0.4
25 Nov 2020 08:00 Ennore India  0.4
25 Nov 2020 19:30 Cuddalore India  0.3
24 Nov 2020 09:30 Mannar Sri Lanka  0.3
24 Nov 2020 09:30 Periyavilankuli Sri Lanka  0.3
24 Nov 2020 09:30 Attimoddai Sri Lanka  0.3
24 Nov 2020 09:30 Vellankulam Sri Lanka  0.3
24 Nov 2020 17:15 Chiruttoppu Sri Lanka  0.3
25 Nov 2020 09:45 Vatturupallepalem India  0.3
25 Nov 2020 09:45 Govundlapalem India  0.3
24 Nov 2020 19:15 Pooneryn Sri Lanka  0.3
24 Nov 2020 19:15 Aliavalai Sri Lanka  0.3
25 Nov 2020 07:45 Tiruvottiyur India  0.3
26 Nov 2020 14:15 Kakinada 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
24 Nov 2020 09:15 Kiranchi Sri Lanka  0.3
25 Nov 2020 23:00 Chakicherla India  0.3
25 Nov 2020 23:45 Kodur India  0.3
25 Nov 2020 23:00 Ullapalem India  0.2
25 Nov 2020 23:15 Pakala 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
24 Nov 2020 09:30 Nawaladi 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 08:00 Tirumullaivasal India  0.2
25 Nov 2020 08:00 Kaveripattanam 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
24 Nov 2020 07:45 Chundikkulam Sri Lanka  0.2
24 Nov 2020 07:00 Chalai Sri Lanka  0.2
25 Nov 2020 13:30 Kavutarimunai Sri Lanka  0.2
24 Nov 2020 07:00 Karaikal India  0.2
24 Nov 2020 07:00 Accarapatam India  0.2
24 Nov 2020 07:00 Velangann India  0.2
24 Nov 2020 07:00 Nagappattinam India  0.2
24 Nov 2020 18:30 Talaimannar Sri Lanka  0.2
27 Nov 2020 02:45 Kottapatnam India  0.2
25 Nov 2020 08:30 Analkaddimady Sri Lanka  0.2
25 Nov 2020 08:30 Walauttu Sri Lanka  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
23 Nov 2020 20:00 Point Pedro Sri Lanka  0.2
25 Nov 2020 08:30 Antarvedi India  0.2
25 Nov 2020 08:30 Bandamurlanka India  0.2
23 Nov 2020 20:30 Kankesanturai Sri Lanka  0.2
25 Nov 2020 06:45 Pulmoddai Sri Lanka  0.2
25 Nov 2020 12:45 Porto Novo India  0.2
24 Nov 2020 04:30 Tranquebar India  0.2
24 Nov 2020 04:30 Tarangambadi India  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
25 Nov 2020 08:00 Peddapatnam India  0.2
24 Nov 2020 16:15 Devipatam India  0.2
24 Nov 2020 16:15 Tirupalakudi India  0.2
25 Nov 2020 12:00 Jaffna Sri Lanka  0.2
24 Nov 2020 16:30 Rameswaram India  0.2
24 Nov 2020 22:00 Kayts Sri Lanka  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
25 Nov 2020 05:15 New Tirrukkovil Sri Lanka  0.2
25 Nov 2020 14:15 Kulasekharapatnam India  0.2
25 Nov 2020 14:15 Tiruchendur India  0.2
25 Nov 2020 14:15 Kayalpatnam India  0.2
25 Nov 2020 14:45 Nizampatam India  0.2
24 Nov 2020 04:30 Kodigeri India  0.2
24 Nov 2020 04:30 Vedaranyam India  0.2
24 Nov 2020 04:30 Vedaranniyam India  0.2
24 Nov 2020 00:15 Pechardwip Bangladesh  0.1
24 Nov 2020 00:15 Jaliapalong Bangladesh  0.1
24 Nov 2020 00:15 Dhoapalong Bangladesh  0.1
24 Nov 2020 00:15 Inani Bangladesh  0.1
24 Nov 2020 00:15 Monakhali Bangladesh  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 10:30 Yala Sri Lanka  0.1
25 Nov 2020 07:15 Akkaraipattu Sri Lanka  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 14:00 Nuralrevu India  0.1
25 Nov 2020 08:15 Kumana Sri Lanka  0.1
24 Nov 2020 05:45 Mudalaipalai Sri Lanka  0.1
24 Nov 2020 05:45 Kalpitiya Sri Lanka  0.1
24 Nov 2020 05:45 Karadipuval Sri Lanka  0.1
24 Nov 2020 05:45 Pomparippu Sri Lanka  0.1
23 Nov 2020 23:45 Silavatturai Sri Lanka  0.1
23 Nov 2020 23:45 Anaippapan Sri Lanka  0.1
25 Nov 2020 10:15 Hatagala Sri Lanka  0.1
25 Nov 2020 10:15 Hambantota Sri Lanka  0.1
25 Nov 2020 07:30 Lankavanidibba India  0.1
25 Nov 2020 11:30 Tangalla Sri Lanka  0.1
25 Nov 2020 09:45 Gollapalem India  0.1
24 Nov 2020 18:15 Delft Centre Sri Lanka  0.1
24 Nov 2020 00:45 Kelatali Bangladesh  0.1
25 Nov 2020 12:00 Kirinda Sri Lanka  0.1
24 Nov 2020 06:00 Satabhaya India  0.1
26 Nov 2020 03:30 Salaya India  0.1
26 Nov 2020 03:30 Jhankhar India  0.1
26 Nov 2020 03:30 Sika India  0.1
24 Nov 2020 15:45 Tondi India  0.1
24 Nov 2020 18:45 Kurichchikadu Sri Lanka  0.1
25 Nov 2020 12:15 Srikurman India  0.1
25 Nov 2020 12:15 Kalingapatnam India  0.1
24 Nov 2020 09:30 Kottapalem India  0.1
23 Nov 2020 22:15 Thoothukkudi India  0.1
24 Nov 2020 08:00 Gopalpur India  0.1
24 Nov 2020 08:00 Chatrapur India  0.1
24 Nov 2020 08:00 Canjam India  0.1
25 Nov 2020 04:00 Pudimadaka India  0.1
25 Nov 2020 04:00 Chipurupalle India  0.1