Overall Green alert Tropical Cyclone for IMAN-21
Off-shore
Impact Single TC
HWRF
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 HWRF
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 90 km/h
Maximum storm surge 0.7 m (09 Mar 01:30 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
HWRF Current 90 km/h 0.7 m 176 mm 0.5
HWRF Overall 90 km/h 0.7 m 356 mm 0.5

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

Wind

90 km/h

No people by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 08 Mar 2021 06:00 UTC

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 83 - - - - - - -
GREEN 2 08 Mar 2021 00:00 79 - - - - - - -
GREEN 3 08 Mar 2021 06:00 94 - - - - - - -




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

No exposed population (greater than 50mm) based on the bulletin of 08 Mar 2021 06:00 UTC

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 18:00 179 - - - - - - -
Blue 2 08 Mar 2021 00:00 164 - - - - - - -
Blue 3 08 Mar 2021 06:00 473 - - - - - - -




Impact estimation for the next 72h

StormSurge

0.7 m

The maximum Storm surge height is  0.7m in Voloina, Madagascar. This height is estimated for 09 Mar 2021 01:30 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 06:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
09 Mar 2021 01:30 Voloina Madagascar  0.7
09 Mar 2021 01:30 Manambia Madagascar  0.7
09 Mar 2021 01:30 Anantoraka Madagascar  0.7
09 Mar 2021 01:30 Maroantsetra Madagascar  0.7
09 Mar 2021 01:30 Andranofotsy Madagascar  0.7
09 Mar 2021 01:30 Mahalevona Madagascar  0.7
08 Mar 2021 19:15 Vohitsara Madagascar  0.6
08 Mar 2021 19:15 Ambinanysahavary Madagascar  0.6
08 Mar 2021 19:15 Namahoaka Madagascar  0.6
08 Mar 2021 19:15 Taratasy Madagascar  0.6
08 Mar 2021 19:15 Mahatsara Madagascar  0.6
08 Mar 2021 19:15 Foulpointe Madagascar  0.6
11 Mar 2021 04:15 Rantabe Madagascar  0.6
08 Mar 2021 10:30 Mahavanona Madagascar  0.5
08 Mar 2021 10:30 Fenerive Madagascar  0.5
08 Mar 2021 10:30 Ampasina Madagascar  0.5
08 Mar 2021 10:30 Antakobola Madagascar  0.5
08 Mar 2021 10:30 Analanampotsy Madagascar  0.5
09 Mar 2021 03:15 Ampasimbe Madagascar  0.4
09 Mar 2021 03:15 Manakalana Madagascar  0.4
09 Mar 2021 03:15 Soanierana Ivongo Madagascar  0.4
09 Mar 2021 03:15 Andrangazaha Madagascar  0.4
11 Mar 2021 04:00 Maintimbato Madagascar  0.4
11 Mar 2021 04:15 Ambanizana Madagascar  0.4
08 Mar 2021 07:15 Fandrarazana Madagascar  0.4
08 Mar 2021 07:15 Ambodifototra Madagascar  0.4
08 Mar 2021 07:15 Lonkintsy Madagascar  0.4
08 Mar 2021 14:45 Antsikafoka Madagascar  0.4
08 Mar 2021 14:45 Mahambo Madagascar  0.4
11 Mar 2021 04:00 Tampolo Madagascar  0.4
11 Mar 2021 04:00 Benjana Madagascar  0.4
08 Mar 2021 19:15 Ambodimanga Madagascar  0.4
08 Mar 2021 07:15 Lokintsy Madagascar  0.4
08 Mar 2021 07:15 Lohatrozona Madagascar  0.4
08 Mar 2021 07:15 Tanambe Madagascar  0.4
08 Mar 2021 07:15 Vohilava Madagascar  0.4
10 Mar 2021 21:00 Tampina Madagascar  0.4
10 Mar 2021 21:00 Marofinaritra Madagascar  0.4
10 Mar 2021 21:00 Ankarefo Madagascar  0.4
10 Mar 2021 04:30 Manompana Madagascar  0.3
10 Mar 2021 04:30 Vatobe Madagascar  0.3
08 Mar 2021 07:15 Ambodiatafa Madagascar  0.3
08 Mar 2021 14:00 Ambodihariha Madagascar  0.3
08 Mar 2021 14:00 Antetezambaro Madagascar  0.3
08 Mar 2021 14:00 Tamatave Madagascar  0.3
11 Mar 2021 04:15 Antalavia Madagascar  0.3
11 Mar 2021 03:45 Fananehana Madagascar  0.3
11 Mar 2021 04:15 Rantranavona Madagascar  0.3
11 Mar 2021 04:00 Anoromby Madagascar  0.3
08 Mar 2021 19:00 Vinanivao Madagascar  0.3
08 Mar 2021 19:00 Anaovandrano Madagascar  0.3
08 Mar 2021 19:00 Anjanozana Madagascar  0.3
08 Mar 2021 19:00 Ampanavoana Madagascar  0.3
08 Mar 2021 19:00 Maniroka Madagascar  0.3
09 Mar 2021 12:45 Andilamboahangy Madagascar  0.3
09 Mar 2021 12:45 Ambatofitarafana Madagascar  0.3
09 Mar 2021 12:45 Ambodimanga Madagascar  0.3
09 Mar 2021 12:45 Ivontaka Madagascar  0.3
09 Mar 2021 12:45 Antanambe Madagascar  0.3
09 Mar 2021 12:45 Seranambe Madagascar  0.3
08 Mar 2021 20:30 Fahambahy Madagascar  0.2
08 Mar 2021 20:30 Tampolo Madagascar  0.2
08 Mar 2021 20:30 Mananara Madagascar  0.2
08 Mar 2021 14:30 Antanetilava Madagascar  0.2
08 Mar 2021 14:30 Manambato Madagascar  0.2
08 Mar 2021 20:30 Manambolosy Madagascar  0.2
08 Mar 2021 06:00 Vavony Madagascar  0.2
08 Mar 2021 06:00 Ampanotoamaizina Madagascar  0.2
08 Mar 2021 19:15 Mahatsara Madagascar  0.2
09 Mar 2021 01:45 Antsisikala Madagascar  0.2
09 Mar 2021 01:45 Antsahalalina Madagascar  0.2
09 Mar 2021 01:45 Andranovondronina Madagascar  0.2
09 Mar 2021 01:45 Betsimiranja Madagascar  0.2
09 Mar 2021 01:45 Ambinanililabe Madagascar  0.2
09 Mar 2021 01:45 Antseranana Madagascar  0.2
09 Mar 2021 01:45 Anjiabe Madagascar  0.2
09 Mar 2021 01:45 Andasoa Madagascar  0.2
09 Mar 2021 01:45 Amoronjia-Orangea Madagascar  0.2
09 Mar 2021 01:45 Ampasindava Madagascar  0.2
09 Mar 2021 12:30 Andringahely Madagascar  0.2
09 Mar 2021 12:30 Ampisikanana Madagascar  0.2
09 Mar 2021 12:15 Ratsianarana Madagascar  0.2
09 Mar 2021 12:15 Ambodivato Madagascar  0.2
09 Mar 2021 12:15 Ambohitralanana Madagascar  0.2
08 Mar 2021 19:00 Antanjokatafana Madagascar  0.2
09 Mar 2021 12:45 Fampotabe Madagascar  0.2
09 Mar 2021 12:45 Ambatoharana Madagascar  0.2
08 Mar 2021 08:00 La Ferme Mauritius  0.2
08 Mar 2021 08:00 Port Mathurin Mauritius  0.2
10 Mar 2021 18:45 Ampondrahazo Madagascar  0.2
09 Mar 2021 13:00 Irodo Madagascar  0.2
09 Mar 2021 13:00 Ambaritsatrana Madagascar  0.2
09 Mar 2021 13:00 Ampondrabe Madagascar  0.2
09 Mar 2021 13:00 Lokia Madagascar  0.2
10 Mar 2021 10:00 Ambinany Madagascar  0.2
10 Mar 2021 10:00 Antalaha Madagascar  0.2
10 Mar 2021 10:00 Antsirabato Madagascar  0.2
10 Mar 2021 10:00 Anjahamarina Madagascar  0.2
10 Mar 2021 10:00 Ambalabe Madagascar  0.2
08 Mar 2021 14:00 Saint-Antoine Mauritius  0.2
08 Mar 2021 14:00 Riviere du Rempart Mauritius  0.2
08 Mar 2021 19:00 Ampaha Madagascar  0.1
10 Mar 2021 12:30 Lotsohina Madagascar  0.1
10 Mar 2021 12:30 Ambatonjanahary Madagascar  0.1
10 Mar 2021 07:30 Ambolobozokely Madagascar  0.1
08 Mar 2021 13:45 Riche-en-Eau Mauritius  0.1
08 Mar 2021 13:45 Maheboug Mauritius  0.1
08 Mar 2021 13:45 Grande Reviere Sud Est Mauritius  0.1
08 Mar 2021 11:00 Tanambao Madagascar  0.1
08 Mar 2021 11:00 Antongompatatra Madagascar  0.1
08 Mar 2021 11:00 Bemanevika Madagascar  0.1
08 Mar 2021 11:00 Ampana Kanana Madagascar  0.1
09 Mar 2021 12:30 Andrapengy Madagascar  0.1
08 Mar 2021 13:00 Saint-Marie Reunion  0.1
08 Mar 2021 13:00 Sainte-Suzanne Reunion  0.1
08 Mar 2021 13:00 Saint-Andre Reunion  0.1
08 Mar 2021 13:00 Bras-Panon Reunion  0.1
08 Mar 2021 13:00 Saint-Benoit Reunion  0.1
10 Mar 2021 17:30 Sambava Madagascar  0.1
10 Mar 2021 17:30 Antohamaro Madagascar  0.1