Overall Red alert Tropical Cyclone for NIVAR-20
in India
23 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, Sri Lanka
Exposed population No people in Category 1 or higher
Maximum wind speed 90 km/h
Maximum storm surge 0.3 m (24 Nov 00:00 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 90 km/h 0.3 m 25 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 15.1 million can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 23 Nov 2020 18:00 UTC
CategoryCountryPopulation 
Tropical StormIndia, Sri Lanka15,125,734
+
India14,795,129 
Sri Lanka330,605 

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 18:00 155 -
- - - - - 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 23 Nov 2020 18:00 UTC
LevelCountryPopulation 
500-750 mmIndia167,028 
250-500 mmIndia13,653,319 
100-250 mmIndia, Sri Lanka35,056,124
+
India35,045,714 
Sri Lanka10,410 
50-100 mmIndia, Sri Lanka15,339,880
+
India14,615,709 
Sri Lanka724,171 

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 18:00 565 48.9 million
- - India, Sri Lanka




Impact estimation for the next 72h
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StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Mannar, Sri Lanka. This height is estimated for 24 Nov 2020 00:00 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 23 Nov 2020 18:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
24 Nov 2020 00:00 Mannar Sri Lanka  0.3
24 Nov 2020 00:00 Periyavilankuli Sri Lanka  0.3
24 Nov 2020 00:00 Attimoddai Sri Lanka  0.3
24 Nov 2020 00:00 Vellankulam Sri Lanka  0.3
23 Nov 2020 23:45 Chiruttoppu Sri Lanka  0.2
23 Nov 2020 20:30 Aliavalai Sri Lanka  0.2
23 Nov 2020 20:30 Chundikkulam Sri Lanka  0.2
23 Nov 2020 23:30 Kiranchi Sri Lanka  0.2
23 Nov 2020 20:00 Idaikkadu Sri Lanka  0.2
23 Nov 2020 20:00 Point Pedro Sri Lanka  0.2
23 Nov 2020 20:00 Ampan Sri Lanka  0.2
23 Nov 2020 20:30 Kankesanturai Sri Lanka  0.2
23 Nov 2020 23:00 Nawaladi Sri Lanka  0.2
23 Nov 2020 20:30 Chalai Sri Lanka  0.2
23 Nov 2020 22:45 Talaimannar Sri Lanka  0.2
23 Nov 2020 19:45 Tirumullaivasal India  0.1
23 Nov 2020 19:45 Kaveripattanam India  0.1
23 Nov 2020 20:00 Marakkanam India  0.1
23 Nov 2020 20:00 Kuvattur India  0.1
23 Nov 2020 21:00 Alampil Sri Lanka  0.1
23 Nov 2020 21:00 Karuvaddukkeni Sri Lanka  0.1
23 Nov 2020 20:45 Velangann India  0.1
23 Nov 2020 19:30 Anaitivu Sri Lanka  0.1
23 Nov 2020 19:30 Ammanthanaveli Sri Lanka  0.1
23 Nov 2020 20:00 Mahabalipuram India  0.1
23 Nov 2020 20:30 Kodigeri India  0.1
23 Nov 2020 20:30 Vedaranyam India  0.1
23 Nov 2020 20:30 Vedaranniyam India  0.1
23 Nov 2020 21:30 Arukarkudah Sri Lanka  0.1
23 Nov 2020 21:30 Pirappaiyadimadu Sri Lanka  0.1
23 Nov 2020 21:30 Brynthuraichenai Sri Lanka  0.1
23 Nov 2020 21:30 Sittandy Sri Lanka  0.1
24 Nov 2020 00:00 Kavutarimunai Sri Lanka  0.1
24 Nov 2020 00:00 Pooneryn Sri Lanka  0.1
23 Nov 2020 23:45 Silavatturai Sri Lanka  0.1
23 Nov 2020 23:45 Anaippapan Sri Lanka  0.1
23 Nov 2020 20:15 Karaikal India  0.1
23 Nov 2020 20:15 Accarapatam India  0.1
23 Nov 2020 20:15 Nagappattinam India  0.1
23 Nov 2020 19:45 Cuddalore India  0.1
23 Nov 2020 19:45 Purnankuppam India  0.1
23 Nov 2020 19:30 Kayts Sri Lanka  0.1
23 Nov 2020 19:30 Jaffna Sri Lanka  0.1
23 Nov 2020 20:00 Tranquebar India  0.1
23 Nov 2020 20:00 Tarangambadi India  0.1
23 Nov 2020 21:15 Pondicherry India  0.1
23 Nov 2020 21:15 Kalapettai India  0.1
23 Nov 2020 19:45 Porto Novo India  0.1
23 Nov 2020 22:00 Kulasekharapatnam India  0.1
23 Nov 2020 22:00 Tiruchendur India  0.1
23 Nov 2020 22:00 Kayalpatnam India  0.1
23 Nov 2020 20:30 Muttupettai India  0.1
23 Nov 2020 20:30 Panalkkulam India  0.1
23 Nov 2020 20:30 Irumeni India  0.1
23 Nov 2020 20:30 Pamban India  0.1
24 Nov 2020 00:00 Durgarajupatnam India  0.1
23 Nov 2020 19:45 Pulmoddai Sri Lanka  0.1
23 Nov 2020 19:45 Analkaddimady Sri Lanka  0.1
23 Nov 2020 19:45 Walauttu Sri Lanka  0.1
23 Nov 2020 22:15 Thoothukkudi India  0.1
23 Nov 2020 22:00 Batticaloa Sri Lanka  0.1
23 Nov 2020 22:00 Kattankudi Sri Lanka  0.1
23 Nov 2020 22:00 Paddiruppu Sri Lanka  0.1
23 Nov 2020 23:45 Kodur India  0.1
23 Nov 2020 19:15 Foul Point Sri Lanka  0.1
23 Nov 2020 23:00 Uppuveli Sri Lanka  0.1
23 Nov 2020 23:00 Trincomalee Sri Lanka  0.1
23 Nov 2020 20:30 Mudalaipalai Sri Lanka  0.1
23 Nov 2020 20:30 Kalpitiya Sri Lanka  0.1
23 Nov 2020 20:30 Karadipuval Sri Lanka  0.1
23 Nov 2020 20:30 Pomparippu Sri Lanka  0.1