Overall Red alert Tropical Cyclone for NIVAR-20
in India
24 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 HWRF
Exposed countries India
Exposed population No people in Category 1 or higher
Maximum wind speed 108 km/h
Maximum storm surge 0.4 m (25 Nov 18:15 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
HWRF Current 108 km/h 0.4 m 30 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)

TOP

Wind

137 km/h

Up to 5.2 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 18:00 UTC
CategoryCountryPopulation 
Tropical StormIndia5,168,339 

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 18:00 140 -
- - - - - India
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 24 Nov 2020 18:00 UTC
LevelCountryPopulation 
more than 1000 mmIndia119,116 
750-1000 mmIndia491,610 
500-750 mmIndia1,113,636 
250-500 mmIndia9,509,185 
100-250 mmIndia36,482,474 
50-100 mmIndia36,713,025 

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 1354 47.7 million
India




Impact estimation for the next 72h
TOP

StormSurge

0.4 m

The maximum Storm surge height is  0.4m in Marakkanam, India. This height is estimated for 25 Nov 2020 18:15 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 24 Nov 2020 18:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Nov 2020 18:15 Marakkanam India  0.4
25 Nov 2020 18:15 Kuvattur India  0.4
25 Nov 2020 18:00 Mahabalipuram India  0.3
24 Nov 2020 20:15 Chiruttoppu Sri Lanka  0.3
24 Nov 2020 20:15 Mannar Sri Lanka  0.3
24 Nov 2020 20:15 Periyavilankuli Sri Lanka  0.3
24 Nov 2020 20:15 Attimoddai Sri Lanka  0.3
24 Nov 2020 19:15 Vellankulam Sri Lanka  0.3
24 Nov 2020 19:15 Pooneryn Sri Lanka  0.3
24 Nov 2020 19:15 Aliavalai Sri Lanka  0.3
26 Nov 2020 00:30 Kottapatnam India  0.3
25 Nov 2020 21:30 Chakicherla India  0.3
25 Nov 2020 21:30 Vatturupallepalem India  0.3
25 Nov 2020 08:15 Therunattam India  0.3
25 Nov 2020 08:15 Ennore India  0.3
25 Nov 2020 18:15 Kalapettai India  0.3
25 Nov 2020 21:30 Ullapalem India  0.3
25 Nov 2020 21:30 Pakala India  0.3
25 Nov 2020 12:15 Durgarajupatnam India  0.3
25 Nov 2020 18:15 Kelambakkam India  0.2
25 Nov 2020 18:15 Saint Thomas Mount India  0.2
26 Nov 2020 01:30 Kakinada India  0.2
24 Nov 2020 18:00 Kiranchi Sri Lanka  0.2
25 Nov 2020 18:15 Pondicherry India  0.2
25 Nov 2020 03:00 Nawaladi Sri Lanka  0.2
25 Nov 2020 07:15 Kavutarimunai Sri Lanka  0.2
25 Nov 2020 18:30 Madhavaram India  0.2
25 Nov 2020 18:30 Chennai India  0.2
25 Nov 2020 15:30 Purnankuppam India  0.2
25 Nov 2020 21:45 Govundlapalem India  0.2
25 Nov 2020 14:15 Cuddalore India  0.2
25 Nov 2020 04:45 Idaikkadu Sri Lanka  0.2
25 Nov 2020 04:45 Ampan Sri Lanka  0.2
24 Nov 2020 18:30 Talaimannar Sri Lanka  0.2
27 Nov 2020 02:30 Nizampatam India  0.2
25 Nov 2020 18:30 Tiruvottiyur India  0.2
24 Nov 2020 18:00 Muttupettai India  0.2
24 Nov 2020 18:00 Panalkkulam India  0.2
24 Nov 2020 18:00 Irumeni India  0.2
24 Nov 2020 18:00 Pamban India  0.2
25 Nov 2020 04:30 Jaffna Sri Lanka  0.2
24 Nov 2020 19:45 Chundikkulam Sri Lanka  0.2
24 Nov 2020 19:15 Alampil Sri Lanka  0.2
24 Nov 2020 19:15 Karuvaddukkeni Sri Lanka  0.2
25 Nov 2020 21:15 Kodur India  0.2
24 Nov 2020 20:45 Accarapatam India  0.2
24 Nov 2020 20:45 Velangann India  0.2
24 Nov 2020 20:45 Nagappattinam India  0.2
24 Nov 2020 20:45 Analkaddimady Sri Lanka  0.2
24 Nov 2020 20:45 Walauttu Sri Lanka  0.2
24 Nov 2020 22:00 Kayts Sri Lanka  0.2
24 Nov 2020 22:00 Kankesanturai Sri Lanka  0.2
24 Nov 2020 20:15 Point Pedro Sri Lanka  0.2
27 Nov 2020 02:15 Kottapalem India  0.1
25 Nov 2020 03:45 Tirumullaivasal India  0.1
25 Nov 2020 03:45 Kaveripattanam India  0.1
24 Nov 2020 22:00 Ammanthanaveli Sri Lanka  0.1
24 Nov 2020 22:00 Arukarkudah Sri Lanka  0.1
24 Nov 2020 22:00 Pirappaiyadimadu Sri Lanka  0.1
24 Nov 2020 22:00 Brynthuraichenai Sri Lanka  0.1
24 Nov 2020 20:00 Okanda Sri Lanka  0.1
24 Nov 2020 20:00 Panama Sri Lanka  0.1
24 Nov 2020 20:00 Pottuvil Sri Lanka  0.1
25 Nov 2020 05:15 New Tirrukkovil Sri Lanka  0.1
25 Nov 2020 12:00 Porto Novo India  0.1
25 Nov 2020 06:15 Uppuveli Sri Lanka  0.1
25 Nov 2020 06:15 Trincomalee Sri Lanka  0.1
25 Nov 2020 06:15 Foul Point Sri Lanka  0.1
24 Nov 2020 19:00 Pulmoddai Sri Lanka  0.1
24 Nov 2020 19:30 Chalai Sri Lanka  0.1
25 Nov 2020 07:00 Sittandy Sri Lanka  0.1
24 Nov 2020 20:00 Karaikal India  0.1
24 Nov 2020 20:00 Tranquebar India  0.1
24 Nov 2020 20:00 Tarangambadi India  0.1
26 Nov 2020 13:00 Peddapatnam India  0.1
24 Nov 2020 18:15 Mudalaipalai Sri Lanka  0.1
24 Nov 2020 18:15 Kalpitiya Sri Lanka  0.1
24 Nov 2020 18:15 Karadipuval Sri Lanka  0.1
24 Nov 2020 18:15 Pomparippu Sri Lanka  0.1
25 Nov 2020 03:45 Yala Sri Lanka  0.1
25 Nov 2020 03:45 Kumana Sri Lanka  0.1
24 Nov 2020 20:30 Kodigeri India  0.1
24 Nov 2020 20:30 Vedaranyam India  0.1
24 Nov 2020 20:30 Vedaranniyam India  0.1
27 Nov 2020 02:15 Lankavanidibba India  0.1
25 Nov 2020 06:00 Satabhaya India  0.1
24 Nov 2020 18:15 Delft Centre Sri Lanka  0.1
25 Nov 2020 04:30 Hambantota Sri Lanka  0.1
25 Nov 2020 04:30 Kirinda Sri Lanka  0.1
25 Nov 2020 03:00 Akkaraipattu Sri Lanka  0.1
25 Nov 2020 03:00 Chittivalasa India  0.1
25 Nov 2020 03:00 Bhimunipatnam India  0.1
25 Nov 2020 03:00 Konada India  0.1
25 Nov 2020 03:45 Silavatturai Sri Lanka  0.1
25 Nov 2020 03:45 Anaippapan Sri Lanka  0.1
24 Nov 2020 23:30 Anaitivu Sri Lanka  0.1
24 Nov 2020 18:45 Kurichchikadu Sri Lanka  0.1
25 Nov 2020 03:00 Ambalam Sri Lanka  0.1
27 Nov 2020 10:30 Alibag India  0.1
27 Nov 2020 10:30 Mandve India  0.1
27 Nov 2020 10:30 Uran India  0.1
25 Nov 2020 00:30 Pentakota India  0.1
25 Nov 2020 11:30 Paddiruppu Sri Lanka  0.1
25 Nov 2020 11:30 Kalmunai Sri Lanka  0.1
26 Nov 2020 03:15 Salaya India  0.1
26 Nov 2020 03:15 Jhankhar India  0.1
26 Nov 2020 03:15 Sika India  0.1
25 Nov 2020 01:45 Batticaloa Sri Lanka  0.1
25 Nov 2020 01:45 Kattankudi Sri Lanka  0.1
25 Nov 2020 06:00 Bideipur India  0.1
25 Nov 2020 03:15 Hatagala Sri Lanka  0.1
25 Nov 2020 03:30 Vedakudiyiruppu Sri Lanka  0.1
24 Nov 2020 23:45 Venkatapuram India  0.1
24 Nov 2020 23:45 Pata Polvaram India  0.1