Overall Green alert Tropical Cyclone for IMAN-21
Off-shore
Impact Single TC
GFS
Impact all weather systems in the area

Impact

Tropical Cyclone IMAN-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GFS
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 140 km/h
Maximum storm surge 0.6 m (08 Mar 19:45 UTC)
Vulnerability --

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 140 km/h 0.6 m 222 mm 0.5
GFS Overall 140 km/h 0.6 m 327 mm 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)



Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 08 Mar 2021 18:00 UTC (Overall situation)

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert 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 07 Mar 2021 18:00 104 - - - - - - -
GREEN 2 08 Mar 2021 00:00 83 - - - - - - -
GREEN 3 08 Mar 2021 06:00 86 - - - - - - -
GREEN 4 08 Mar 2021 12:00 104 - - - - - - -
GREEN 5 08 Mar 2021 18:00 140 - - - - - - -




Impact estimation for the next 72h
Download:

Rainfall

327 mm

Up to 20 thousand can be affected by rain higher than 100mm (see SSHS)





Rain exposed population - AoIs

Estimations based on the bulletin of 08 Mar 2021 18:00 UTC (Overall situation)
LevelCountryPopulation 
100-250 mmMadagascar22784 
50-100 mmMadagascar, Mauritius1357029
+
Madagascar1313521 
Mauritius43508 

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 07 Mar 2021 18:00 321 - - - - - - -
Blue 2 08 Mar 2021 00:00 87 - - - - - - -
Blue 3 08 Mar 2021 06:00 103 - - - - - - -
Blue 4 08 Mar 2021 12:00 121 - - - - - - -
Blue 5 08 Mar 2021 18:00 222 -
- - - - - Madagascar, Mauritius




Impact estimation for the next 72h

StormSurge

0.6 m

The maximum Storm surge height is  0.6m in Voloina, Madagascar. This height is estimated for 08 Mar 2021 19:45 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.

Calculation based on the bulletin of 08 Mar 2021 18:00 UTC (Overall situation)
Alert Date (UTC) Name Country Storm surge height (m)
08 Mar 2021 19:45 Voloina Madagascar  0.6
08 Mar 2021 19:45 Manambia Madagascar  0.6
08 Mar 2021 19:45 Anantoraka Madagascar  0.6
08 Mar 2021 19:45 Maroantsetra Madagascar  0.6
08 Mar 2021 19:45 Andranofotsy Madagascar  0.6
08 Mar 2021 19:45 Mahalevona Madagascar  0.6
08 Mar 2021 19:45 Rantabe Madagascar  0.4
08 Mar 2021 08:30 Ampasimbe Madagascar  0.4
08 Mar 2021 08:30 Manakalana Madagascar  0.4
08 Mar 2021 08:30 Soanierana Ivongo Madagascar  0.4
08 Mar 2021 08:30 Andrangazaha Madagascar  0.4
08 Mar 2021 01:15 Fandrarazana Madagascar  0.4
08 Mar 2021 01:15 Ambodifototra Madagascar  0.4
08 Mar 2021 01:15 Lonkintsy Madagascar  0.4
08 Mar 2021 13:15 Vohitsara Madagascar  0.4
08 Mar 2021 13:15 Ambinanysahavary Madagascar  0.4
08 Mar 2021 13:15 Namahoaka Madagascar  0.4
08 Mar 2021 13:15 Taratasy Madagascar  0.4
08 Mar 2021 13:15 Mahatsara Madagascar  0.4
08 Mar 2021 13:15 Foulpointe Madagascar  0.4
08 Mar 2021 08:30 Analanampotsy Madagascar  0.4
09 Mar 2021 23:15 Manompana Madagascar  0.4
09 Mar 2021 23:15 Lokintsy Madagascar  0.4
09 Mar 2021 23:15 Lohatrozona Madagascar  0.4
09 Mar 2021 23:15 Tanambe Madagascar  0.4
08 Mar 2021 21:15 Mahavanona Madagascar  0.4
08 Mar 2021 21:15 Fenerive Madagascar  0.4
08 Mar 2021 21:15 Ampasina Madagascar  0.4
08 Mar 2021 21:15 Antakobola Madagascar  0.4
08 Mar 2021 01:15 Vohilava Madagascar  0.3
08 Mar 2021 01:15 Ambodiatafa Madagascar  0.3
08 Mar 2021 13:15 Vavony Madagascar  0.3
08 Mar 2021 13:15 Ampanotoamaizina Madagascar  0.3
08 Mar 2021 13:15 Tampina Madagascar  0.3
10 Mar 2021 11:45 Maintimbato Madagascar  0.3
10 Mar 2021 11:45 Fananehana Madagascar  0.3
10 Mar 2021 19:30 Marofinaritra Madagascar  0.3
10 Mar 2021 19:30 Ankarefo Madagascar  0.3
08 Mar 2021 14:45 Ambanizana Madagascar  0.3
08 Mar 2021 14:45 Benjana Madagascar  0.3
09 Mar 2021 22:45 Vatobe Madagascar  0.3
08 Mar 2021 14:45 Tampolo Madagascar  0.3
08 Mar 2021 14:30 Antalavia Madagascar  0.3
10 Mar 2021 20:15 Antsikafoka Madagascar  0.2
10 Mar 2021 20:15 Mahambo Madagascar  0.2
10 Mar 2021 11:45 Anoromby Madagascar  0.2
09 Mar 2021 19:30 Antanetilava Madagascar  0.2
09 Mar 2021 19:30 Manambato Madagascar  0.2
08 Mar 2021 14:30 Manambolosy Madagascar  0.2
08 Mar 2021 14:30 Fahambahy Madagascar  0.2
08 Mar 2021 14:30 Tampolo Madagascar  0.2
08 Mar 2021 14:30 Mananara Madagascar  0.2
08 Mar 2021 14:45 Rantranavona Madagascar  0.2
09 Mar 2021 06:45 Andilamboahangy Madagascar  0.2
09 Mar 2021 06:45 Ambatofitarafana Madagascar  0.2
09 Mar 2021 06:45 Ambodimanga Madagascar  0.2
09 Mar 2021 06:45 Ivontaka Madagascar  0.2
09 Mar 2021 06:45 Antanambe Madagascar  0.2
09 Mar 2021 06:45 Seranambe Madagascar  0.2
09 Mar 2021 13:00 Ampasindava Madagascar  0.2
09 Mar 2021 13:00 Ampondrahazo Madagascar  0.2
09 Mar 2021 13:00 Ambolobozokely Madagascar  0.2
09 Mar 2021 13:00 Ambaritsatrana Madagascar  0.2
08 Mar 2021 13:15 Ambodimanga Madagascar  0.2
08 Mar 2021 13:15 Ambodihariha Madagascar  0.2
08 Mar 2021 13:15 Antetezambaro Madagascar  0.2
08 Mar 2021 13:15 Tamatave Madagascar  0.2
08 Mar 2021 19:45 Antsisikala Madagascar  0.2
08 Mar 2021 19:45 Antsahalalina Madagascar  0.2
08 Mar 2021 19:45 Andranovondronina Madagascar  0.2
08 Mar 2021 19:45 Betsimiranja Madagascar  0.2
08 Mar 2021 19:45 Ambinanililabe Madagascar  0.2
08 Mar 2021 19:45 Antseranana Madagascar  0.2
08 Mar 2021 19:45 Anjiabe Madagascar  0.2
08 Mar 2021 19:45 Andasoa Madagascar  0.2
08 Mar 2021 19:45 Amoronjia-Orangea Madagascar  0.2
09 Mar 2021 13:00 Andringahely Madagascar  0.2
08 Mar 2021 13:15 Mahatsara Madagascar  0.2
08 Mar 2021 13:00 Ambalabe Madagascar  0.2
08 Mar 2021 13:00 Ambodivato Madagascar  0.2
08 Mar 2021 13:00 Ambohitralanana Madagascar  0.2
08 Mar 2021 11:15 Lokia Madagascar  0.2
09 Mar 2021 04:00 Lotsohina Madagascar  0.2
09 Mar 2021 04:00 Ambatonjanahary Madagascar  0.2
08 Mar 2021 02:00 La Ferme Mauritius  0.2
08 Mar 2021 02:00 Port Mathurin Mauritius  0.2
10 Mar 2021 10:45 Anjahamarina Madagascar  0.2
09 Mar 2021 12:30 Ampaha Madagascar  0.2
09 Mar 2021 12:30 Ambinany Madagascar  0.2
09 Mar 2021 12:30 Antalaha Madagascar  0.2
09 Mar 2021 12:30 Antsirabato Madagascar  0.2
08 Mar 2021 14:15 Irodo Madagascar  0.2
08 Mar 2021 14:15 Ampondrabe Madagascar  0.2
10 Mar 2021 12:00 Fampotabe Madagascar  0.2
09 Mar 2021 18:30 Ambatoharana Madagascar  0.2
09 Mar 2021 18:30 Vinanivao Madagascar  0.2
09 Mar 2021 18:30 Anaovandrano Madagascar  0.2
08 Mar 2021 13:00 Anjanozana Madagascar  0.2
08 Mar 2021 13:00 Ampanavoana Madagascar  0.2
08 Mar 2021 13:00 Maniroka Madagascar  0.2
10 Mar 2021 11:15 Ampisikanana Madagascar  0.1
09 Mar 2021 01:45 Ratsianarana Madagascar  0.1
08 Mar 2021 02:30 Riche-en-Eau Mauritius  0.1
08 Mar 2021 02:30 Maheboug Mauritius  0.1
08 Mar 2021 02:30 Grande Reviere Sud Est Mauritius  0.1
08 Mar 2021 13:30 Antanjokatafana Madagascar  0.1
10 Mar 2021 11:00 Andrapengy Madagascar  0.1
08 Mar 2021 07:45 Saint-Antoine Mauritius  0.1
08 Mar 2021 07:45 Riviere du Rempart Mauritius  0.1
07 Mar 2021 20:30 Saint-Paul Reunion  0.1
07 Mar 2021 20:30 Saint-Leu Reunion  0.1
07 Mar 2021 20:30 Trois Bassins Reunion  0.1
07 Mar 2021 20:30 Le Port Reunion  0.1
07 Mar 2021 20:30 La Possession Reunion  0.1
07 Mar 2021 20:30 Les Avirons Reunion  0.1
07 Mar 2021 20:30 Etang Sale Reunion  0.1
07 Mar 2021 20:30 Saint-Denis Reunion  0.1
07 Mar 2021 20:30 Saint-Louis Reunion  0.1
07 Mar 2021 20:30 Saint-Pierre Reunion  0.1
07 Mar 2021 20:30 Petite Ile Reunion  0.1