Overall Red alert Tropical Cyclone for NIVAR-20
in India
25 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 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 137 km/h 0.8 m 38 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)

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Wind



Wind exposed population - AoIs

Estimations based on the bulletin of 25 Nov 2020 18:00 UTC
CategoryCountryPopulation 
Tropical StormIndia18,464,861 

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 18:00 108 - - - - - - -
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
Download:





Impact estimation for the next 72h
TOP

Rainfall

917 mm

Up to 31.9 million can be affected rain lower than 100mm





Rain exposed population - AoIs

Estimations based on the bulletin of 25 Nov 2020 18:00 UTC
LevelCountryPopulation 
250-500 mmIndia1,365,964 
100-250 mmIndia22,185,396 
50-100 mmIndia31,949,456 

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 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 18:00 632 23.6 million
- - - India




Impact estimation for the next 72h
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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.

Storm Surge Exposed population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 25 Nov 2020 18:00 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
26 Nov 2020 12:45 Kakinada India  0.4
25 Nov 2020 18:00 Therunattam India  0.4
25 Nov 2020 18:00 Ennore India  0.4
25 Nov 2020 19:30 Cuddalore India  0.3
26 Nov 2020 01:30 Chakicherla India  0.3
26 Nov 2020 01:30 Vatturupallepalem India  0.3
26 Nov 2020 04:00 Ullapalem India  0.3
26 Nov 2020 04:00 Pakala India  0.3
26 Nov 2020 06:30 Kottapatnam India  0.3
26 Nov 2020 03:15 Kodur India  0.3
25 Nov 2020 18:30 Tiruvottiyur India  0.3
26 Nov 2020 01:15 Govundlapalem India  0.3
26 Nov 2020 18:15 Nizampatam India  0.2
25 Nov 2020 20:45 Arukarkudah Sri Lanka  0.2
25 Nov 2020 20:45 Pirappaiyadimadu Sri Lanka  0.2
25 Nov 2020 20:45 Brynthuraichenai Sri Lanka  0.2
25 Nov 2020 20:45 Sittandy Sri Lanka  0.2
27 Nov 2020 00:30 Peddapatnam India  0.2
25 Nov 2020 21:00 Velangann India  0.2
25 Nov 2020 21:00 Nagappattinam India  0.2
26 Nov 2020 18:00 Kottapalem India  0.2
25 Nov 2020 18:30 Tirumullaivasal India  0.2
25 Nov 2020 18:30 Kaveripattanam India  0.2
25 Nov 2020 18:30 Porto Novo India  0.2
26 Nov 2020 10:30 Anaitivu Sri Lanka  0.1
26 Nov 2020 10:30 Ammanthanaveli Sri Lanka  0.1
26 Nov 2020 22:00 Lankavanidibba India  0.1
26 Nov 2020 10:00 Pooneryn Sri Lanka  0.1
26 Nov 2020 10:00 Aliavalai Sri Lanka  0.1
25 Nov 2020 22:00 Vedaranyam India  0.1
25 Nov 2020 22:00 Vedaranniyam India  0.1
26 Nov 2020 10:30 Pentakota India  0.1
25 Nov 2020 21:45 Paddiruppu Sri Lanka  0.1
25 Nov 2020 21:45 Kalmunai Sri Lanka  0.1
25 Nov 2020 21:45 Ambalam Sri Lanka  0.1
25 Nov 2020 18:45 Tranquebar India  0.1
25 Nov 2020 18:45 Tarangambadi India  0.1
26 Nov 2020 10:00 Kavutarimunai Sri Lanka  0.1
26 Nov 2020 10:00 Nawaladi Sri Lanka  0.1
26 Nov 2020 01:00 Pottuvil Sri Lanka  0.1
26 Nov 2020 01:00 New Tirrukkovil Sri Lanka  0.1
28 Nov 2020 06:45 Devipatam India  0.1
28 Nov 2020 06:45 Muttupettai India  0.1
28 Nov 2020 06:45 Tirupalakudi India  0.1
28 Nov 2020 06:45 Panalkkulam India  0.1
28 Nov 2020 06:45 Irumeni India  0.1
25 Nov 2020 20:45 Accarapatam India  0.1
28 Nov 2020 18:00 Pamban India  0.1
25 Nov 2020 20:45 Talaimannar Sri Lanka  0.1
25 Nov 2020 20:45 Chiruttoppu Sri Lanka  0.1
25 Nov 2020 20:45 Mannar Sri Lanka  0.1
25 Nov 2020 20:45 Periyavilankuli Sri Lanka  0.1
26 Nov 2020 02:15 Karaikal India  0.1
25 Nov 2020 18:00 Batticaloa Sri Lanka  0.1
25 Nov 2020 18:00 Kattankudi Sri Lanka  0.1
25 Nov 2020 21:00 Kodigeri India  0.1
26 Nov 2020 07:45 Idaikkadu Sri Lanka  0.1
26 Nov 2020 07:45 Ampan Sri Lanka  0.1
26 Nov 2020 05:15 Satabhaya India  0.1
26 Nov 2020 04:15 Salaya India  0.1
26 Nov 2020 04:15 Jhankhar India  0.1
26 Nov 2020 04:15 Sika India  0.1
26 Nov 2020 01:00 Panama Sri Lanka  0.1
25 Nov 2020 21:00 Silavatturai Sri Lanka  0.1
25 Nov 2020 21:00 Anaippapan Sri Lanka  0.1
25 Nov 2020 18:45 Vedakudiyiruppu Sri Lanka  0.1