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 GFS
Exposed countries India
Exposed population No people in Category 1 or higher
Maximum wind speed 112 km/h
Maximum storm surge 0.4 m (25 Nov 14:15 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 112 km/h 0.4 m 31 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 7.2 million can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 25 Nov 2020 06:00 UTC
CategoryCountryPopulation 
Tropical StormIndia7,180,862 

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 76 - - - - - - -
GREEN 3 24 Nov 2020 00:00 83 - - - - - - -
GREEN 4 24 Nov 2020 06:00 76 - - - - - - -
GREEN 5 24 Nov 2020 12:00 86 - - - - - - -
GREEN 6 24 Nov 2020 18:00 115 - - - - - - -
GREEN 7 25 Nov 2020 00:00 119 - - - - - - -
GREEN 8 25 Nov 2020 06:00 115 -
- - - - - India
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 25 Nov 2020 06:00 UTC
LevelCountryPopulation 
250-500 mmIndia4,110,898 
100-250 mmIndia29,161,983 
50-100 mmIndia, Sri Lanka34,284,244
+
India33,666,473 
Sri Lanka617,771 

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 21 - - - - - - -
Blue 3 24 Nov 2020 00:00 23 - - - - - - -
Blue 4 24 Nov 2020 06:00 21 - - - - - - -
Blue 5 24 Nov 2020 12:00 24 - - - - - - -
Blue 6 24 Nov 2020 18:00 32 - - - - - - -
Blue 7 25 Nov 2020 00:00 33 - - - - - - -
Blue 8 25 Nov 2020 06:00 385 33.3 million
- - - India, Sri Lanka




Impact estimation for the next 72h
TOP

StormSurge

0.4 m

The maximum Storm surge height is  0.4m in Kuvattur, India. This height is estimated for 25 Nov 2020 14:15 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 25 Nov 2020 06:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Nov 2020 14:15 Kuvattur India  0.4
25 Nov 2020 14:15 Mahabalipuram India  0.4
25 Nov 2020 10:15 Therunattam India  0.4
25 Nov 2020 10:15 Ennore India  0.4
25 Nov 2020 14:15 Kelambakkam India  0.3
25 Nov 2020 14:15 Saint Thomas Mount India  0.3
25 Nov 2020 12:45 Durgarajupatnam India  0.3
25 Nov 2020 16:30 Madhavaram India  0.3
25 Nov 2020 16:30 Chennai India  0.3
25 Nov 2020 09:15 Pooneryn Sri Lanka  0.3
25 Nov 2020 09:15 Aliavalai Sri Lanka  0.3
25 Nov 2020 09:45 Kavutarimunai Sri Lanka  0.3
25 Nov 2020 09:45 Nawaladi Sri Lanka  0.3
25 Nov 2020 20:30 Marakkanam India  0.2
25 Nov 2020 22:45 Idaikkadu Sri Lanka  0.2
25 Nov 2020 22:45 Ampan Sri Lanka  0.2
25 Nov 2020 13:30 Tiruvottiyur India  0.2
25 Nov 2020 22:45 Jaffna Sri Lanka  0.2
26 Nov 2020 08:00 Kottapatnam India  0.2
25 Nov 2020 23:00 Chakicherla India  0.2
25 Nov 2020 23:00 Vatturupallepalem India  0.2
25 Nov 2020 23:15 Ullapalem India  0.2
25 Nov 2020 23:15 Pakala India  0.2
25 Nov 2020 12:00 Govundlapalem India  0.2
25 Nov 2020 18:00 Talaimannar Sri Lanka  0.2
25 Nov 2020 18:00 Chiruttoppu Sri Lanka  0.2
25 Nov 2020 18:00 Mannar Sri Lanka  0.2
25 Nov 2020 19:00 Kodigeri India  0.2
25 Nov 2020 09:45 Purnankuppam India  0.2
25 Nov 2020 09:45 Pondicherry India  0.2
25 Nov 2020 09:45 Kalapettai India  0.2
25 Nov 2020 18:15 Periyavilankuli Sri Lanka  0.2
25 Nov 2020 18:30 Atirampattinam India  0.2
25 Nov 2020 08:15 Kiranchi Sri Lanka  0.2
25 Nov 2020 08:15 Vellankulam Sri Lanka  0.2
25 Nov 2020 18:45 Kattumavadi India  0.2
25 Nov 2020 15:30 Kodur India  0.2
25 Nov 2020 08:30 Attimoddai Sri Lanka  0.1
26 Nov 2020 07:45 Kakinada India  0.1
26 Nov 2020 08:45 Nizampatam India  0.1
25 Nov 2020 09:30 Porto Novo India  0.1
25 Nov 2020 09:30 Tirumullaivasal India  0.1
25 Nov 2020 11:00 Cuddalore India  0.1
25 Nov 2020 20:45 Kurichchikadu Sri Lanka  0.1
25 Nov 2020 20:45 Kayts Sri Lanka  0.1
25 Nov 2020 20:00 Vedaranyam India  0.1
25 Nov 2020 20:00 Vedaranniyam India  0.1
25 Nov 2020 07:00 Alampil Sri Lanka  0.1
25 Nov 2020 07:00 Karuvaddukkeni Sri Lanka  0.1
25 Nov 2020 18:45 Manamelkudi India  0.1
25 Nov 2020 18:00 Silavatturai Sri Lanka  0.1
25 Nov 2020 18:15 Pamban India  0.1
25 Nov 2020 18:15 Rameswaram India  0.1
25 Nov 2020 09:30 Kaveripattanam India  0.1
25 Nov 2020 09:30 Tranquebar India  0.1
25 Nov 2020 09:30 Tarangambadi India  0.1
28 Nov 2020 06:00 Satabhaya India  0.1
25 Nov 2020 10:45 Accarapatam India  0.1
25 Nov 2020 10:45 Velangann India  0.1
25 Nov 2020 10:45 Nagappattinam India  0.1
25 Nov 2020 08:00 Chittivalasa India  0.1
25 Nov 2020 08:00 Bhimunipatnam India  0.1
25 Nov 2020 08:00 Konada India  0.1
25 Nov 2020 10:15 Karaikal India  0.1
25 Nov 2020 06:00 Foul Point Sri Lanka  0.1
25 Nov 2020 06:00 Anaitivu Sri Lanka  0.1
26 Nov 2020 12:45 Peddapatnam India  0.1
25 Nov 2020 19:00 Ammapatam India  0.1
25 Nov 2020 10:30 Kankesanturai Sri Lanka  0.1
25 Nov 2020 10:30 Point Pedro Sri Lanka  0.1
28 Nov 2020 06:00 Bideipur India  0.1
25 Nov 2020 12:00 Anaippapan Sri Lanka  0.1
26 Nov 2020 04:30 Salaya India  0.1
26 Nov 2020 04:30 Jhankhar India  0.1
26 Nov 2020 04:30 Sika India  0.1
25 Nov 2020 10:30 Pulmoddai Sri Lanka  0.1
26 Nov 2020 09:00 Kottapalem India  0.1
25 Nov 2020 10:30 Chundikkulam Sri Lanka  0.1
25 Nov 2020 12:00 Kulasekharapatnam India  0.1
25 Nov 2020 12:00 Tiruchendur India  0.1
25 Nov 2020 12:00 Kayalpatnam India  0.1