Overall Red alert Tropical Cyclone for NIVAR-20
in India
24 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, Sri Lanka
Exposed population No people in Category 1 or higher
Maximum wind speed 76 km/h
Maximum storm surge 0.7 m (25 Nov 09:45 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
GFS Current 76 km/h 0.7 m 21 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 4.2 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 06:00 UTC
CategoryCountryPopulation 
Tropical StormIndia, Sri Lanka4,151,296
+
India3,904,518 
Sri Lanka246,778 

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 06:00 112 -
- - - - - 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 06:00 UTC
LevelCountryPopulation 
250-500 mmIndia, Sri Lanka1,399,994
+
India1,364,095 
Sri Lanka35,899 
100-250 mmIndia, Sri Lanka46,991,902
+
India46,151,215 
Sri Lanka840,687 
50-100 mmIndia, Sri Lanka39,585,503
+
India39,256,189 
Sri Lanka329,314 

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 06:00 526 48.4 million
- - - India, Sri Lanka




Impact estimation for the next 72h
TOP

StormSurge

0.7 m

The maximum Storm surge height is  0.7m in Pooneryn, Sri Lanka. This height is estimated for 25 Nov 2020 09:45 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 06:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Nov 2020 09:45 Pooneryn Sri Lanka  0.7
25 Nov 2020 09:45 Aliavalai Sri Lanka  0.7
25 Nov 2020 08:15 Kavutarimunai Sri Lanka  0.6
25 Nov 2020 08:15 Nawaladi Sri Lanka  0.6
25 Nov 2020 08:30 Idaikkadu Sri Lanka  0.5
25 Nov 2020 08:30 Ampan Sri Lanka  0.5
24 Nov 2020 17:30 Mannar Sri Lanka  0.4
24 Nov 2020 17:30 Periyavilankuli Sri Lanka  0.4
24 Nov 2020 17:30 Attimoddai Sri Lanka  0.4
24 Nov 2020 17:30 Vellankulam Sri Lanka  0.4
24 Nov 2020 18:15 Chiruttoppu Sri Lanka  0.4
24 Nov 2020 17:00 Muttupettai India  0.4
24 Nov 2020 17:00 Panalkkulam India  0.4
24 Nov 2020 17:00 Irumeni India  0.4
24 Nov 2020 17:00 Pamban India  0.4
25 Nov 2020 08:30 Jaffna Sri Lanka  0.4
25 Nov 2020 01:15 Kiranchi Sri Lanka  0.3
24 Nov 2020 16:15 Rameswaram India  0.3
25 Nov 2020 19:45 Marakkanam India  0.3
25 Nov 2020 19:45 Kuvattur India  0.3
24 Nov 2020 16:30 Talaimannar Sri Lanka  0.3
25 Nov 2020 03:15 Kankesanturai Sri Lanka  0.2
25 Nov 2020 03:15 Point Pedro Sri Lanka  0.2
24 Nov 2020 16:30 Tirupalakudi India  0.2
24 Nov 2020 17:00 Devipatam India  0.2
25 Nov 2020 20:00 Mahabalipuram India  0.2
24 Nov 2020 17:45 Mudalaipalai Sri Lanka  0.2
24 Nov 2020 17:45 Kalpitiya Sri Lanka  0.2
24 Nov 2020 17:45 Karadipuval Sri Lanka  0.2
24 Nov 2020 17:45 Pomparippu Sri Lanka  0.2
25 Nov 2020 20:30 Kelambakkam India  0.2
25 Nov 2020 20:30 Saint Thomas Mount India  0.2
25 Nov 2020 20:30 Madhavaram India  0.2
25 Nov 2020 20:30 Chennai India  0.2
26 Nov 2020 01:15 Durgarajupatnam India  0.2
25 Nov 2020 03:15 Kayts Sri Lanka  0.2
25 Nov 2020 08:15 Porto Novo India  0.2
25 Nov 2020 20:45 Pondicherry India  0.2
25 Nov 2020 20:45 Kalapettai India  0.2
26 Nov 2020 12:15 Kattumavadi India  0.2
26 Nov 2020 12:15 Atirampattinam India  0.2
24 Nov 2020 23:45 Silavatturai Sri Lanka  0.2
24 Nov 2020 23:45 Anaippapan Sri Lanka  0.2
25 Nov 2020 16:15 Therunattam India  0.2
25 Nov 2020 16:15 Ennore India  0.2
26 Nov 2020 12:15 Manamelkudi India  0.2
24 Nov 2020 15:00 Chundikkulam Sri Lanka  0.2
26 Nov 2020 11:30 Kodigeri India  0.2
25 Nov 2020 09:45 Karaikal India  0.2
25 Nov 2020 09:45 Accarapatam India  0.2
25 Nov 2020 09:45 Nagappattinam India  0.2
25 Nov 2020 09:45 Tranquebar India  0.2
25 Nov 2020 09:45 Tarangambadi India  0.2
24 Nov 2020 16:45 Tondi India  0.2
24 Nov 2020 19:45 Kurichchikadu Sri Lanka  0.2
24 Nov 2020 19:45 Delft Centre Sri Lanka  0.2
25 Nov 2020 09:30 Tirumullaivasal India  0.2
25 Nov 2020 09:30 Kaveripattanam India  0.2
26 Nov 2020 12:30 Ammapatam India  0.2
25 Nov 2020 17:45 Purnankuppam India  0.1
26 Nov 2020 04:15 Chakicherla India  0.1
26 Nov 2020 04:15 Ullapalem India  0.1
26 Nov 2020 04:15 Pakala India  0.1
26 Nov 2020 04:15 Vatturupallepalem India  0.1
25 Nov 2020 09:45 Velangann India  0.1
24 Nov 2020 15:00 Chalai Sri Lanka  0.1
25 Nov 2020 12:15 Cuddalore India  0.1
25 Nov 2020 20:30 Tiruvottiyur India  0.1
26 Nov 2020 13:15 Vedaranyam India  0.1
26 Nov 2020 13:15 Vedaranniyam India  0.1
26 Nov 2020 12:30 Kottaippattanam India  0.1
24 Nov 2020 12:15 Analkaddimady Sri Lanka  0.1
24 Nov 2020 12:15 Walauttu Sri Lanka  0.1
26 Nov 2020 02:15 Kottapatnam India  0.1
24 Nov 2020 10:30 Alampil Sri Lanka  0.1
24 Nov 2020 10:30 Pulmoddai Sri Lanka  0.1
26 Nov 2020 03:15 Kodur India  0.1
24 Nov 2020 09:45 Arukarkudah Sri Lanka  0.1
24 Nov 2020 09:45 Pirappaiyadimadu Sri Lanka  0.1
24 Nov 2020 09:45 Brynthuraichenai Sri Lanka  0.1
24 Nov 2020 09:45 Sittandy Sri Lanka  0.1
25 Nov 2020 05:30 Satabhaya India  0.1
26 Nov 2020 03:30 Govundlapalem India  0.1
24 Nov 2020 12:15 Akkaraipattu Sri Lanka  0.1
24 Nov 2020 12:15 New Tirrukkovil Sri Lanka  0.1
26 Nov 2020 04:45 Salaya India  0.1
26 Nov 2020 04:45 Jhankhar India  0.1
26 Nov 2020 04:45 Sika India  0.1
25 Nov 2020 05:45 Bideipur India  0.1
24 Nov 2020 10:30 Karuvaddukkeni Sri Lanka  0.1
25 Nov 2020 11:30 Kakinada India  0.1
24 Nov 2020 06:00 Foul Point Sri Lanka  0.1
24 Nov 2020 06:00 Anaitivu Sri Lanka  0.1
24 Nov 2020 11:15 Okanda Sri Lanka  0.1
24 Nov 2020 11:15 Panama Sri Lanka  0.1
24 Nov 2020 11:15 Pottuvil Sri Lanka  0.1
24 Nov 2020 07:15 Ammanthanaveli Sri Lanka  0.1
25 Nov 2020 05:30 Kulasekharapatnam India  0.1
25 Nov 2020 05:30 Tiruchendur India  0.1
25 Nov 2020 05:30 Kayalpatnam India  0.1