Overall Green alert Tropical Cyclone for WASI-20
in Samoa, Niue
24 Feb 2020 12 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone WASI-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source ECMWF
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 65 km/h
Maximum storm surge 0.4 m (24 Feb 09:30 UTC)
Vulnerability Medium (Samoa)

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
ECMWF Current 65 km/h 0.4 m 589 mm 0.5
ECMWF Overall 65 km/h 0.4 m 589 mm 0.5

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

TOP

Wind

65 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 24 Feb 2020 12:00 UTC (Overall situation)

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 21 Feb 2020 00:00 65 - - - - - - -
GREEN 2 21 Feb 2020 12:00 65 - - - - - - -
GREEN 3 22 Feb 2020 00:00 58 - - - - - - -
GREEN 4 22 Feb 2020 12:00 65 - - - - - - -
GREEN 5 23 Feb 2020 00:00 61 - - - - - - -
GREEN 6 23 Feb 2020 12:00 47 - - - - - - -
GREEN 7 24 Feb 2020 00:00 47 - - - - - - -
GREEN 8 24 Feb 2020 12:00 58 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 24 Feb 2020 12:00 UTC (Overall situation)
LevelCountryPopulation 
250-500 mmSamoa7,919 
100-250 mmTuvalu, Tokelau, Samoa, American Samoa244,043
+
Tuvalu1,702 
Tokelau504 
American Samoa53,536 
Samoa188,301 
50-100 mmTuvalu, Tokelau, Cook Islands, American Samoa, Fiji, Tonga11,341
+
Tuvalu6,267 
Tokelau833 
Cook Islands299 
American Samoa1,137 
Samoa16 
Fiji174 
Tonga2,615 

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 21 Feb 2020 00:00 330 - - - - - - -
Blue 2 21 Feb 2020 12:00 280 -
- - - - - Samoa
Blue 3 22 Feb 2020 00:00 292 -
- - - - - Samoa
Blue 4 22 Feb 2020 12:00 347 -
- - - - - Samoa, American Samoa, Tonga
Blue 5 23 Feb 2020 00:00 108 -
- - - - - Samoa, Tonga
Blue 6 23 Feb 2020 12:00 215 - - - - - - -
Blue 7 24 Feb 2020 00:00 455 -
- - - - - Fiji
Blue 8 24 Feb 2020 12:00 264 -
- - - - - Tokelau, Samoa




Impact estimation for the next 72h
TOP

StormSurge

0.4 m

The maximum Storm surge height is  0.4m in Korosi, Fiji. This height is estimated for 24 Feb 2020 09:30 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.

Storm Surge Exposed population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 24 Feb 2020 12:00 UTC (Overall situation)
    
Alert Date (UTC) Name Country Storm surge height (m)
24 Feb 2020 09:30 Korosi Fiji  0.4
24 Feb 2020 09:30 Korotasere Fiji  0.4
24 Feb 2020 09:30 Naweni Fiji  0.4
24 Feb 2020 09:30 Nakarambo Fiji  0.4
24 Feb 2020 09:30 Viani Fiji  0.4
24 Feb 2020 09:30 Ndrekeniwai Fiji  0.4
24 Feb 2020 09:30 Mbangasau Fiji  0.4
24 Feb 2020 09:30 Malake Fiji  0.3
24 Feb 2020 09:15 Korovou Fiji  0.3
24 Feb 2020 09:15 Lodoni Fiji  0.3
24 Feb 2020 09:15 Lawaki Fiji  0.3
24 Feb 2020 09:15 Naingani Fiji  0.3
24 Feb 2020 09:15 Navuti Fiji  0.3
24 Feb 2020 09:15 Nasaga Fiji  0.3
24 Feb 2020 09:15 Rukuruku Fiji  0.3
24 Feb 2020 09:15 Biagunu Fiji  0.3
24 Feb 2020 09:30 Lao Fiji  0.3
24 Feb 2020 09:45 Kasavu Fiji  0.3
24 Feb 2020 09:45 Nausori Fiji  0.3
24 Feb 2020 09:45 Naimasimasi Fiji  0.3
24 Feb 2020 09:45 Ucunivanua Fiji  0.3
24 Feb 2020 09:45 Cautata Fiji  0.3
24 Feb 2020 09:45 Dromuna Fiji  0.3
24 Feb 2020 09:45 Lokia Fiji  0.3
24 Feb 2020 09:45 Nasilai Fiji  0.3
24 Feb 2020 17:00 Nailou Fiji  0.3
24 Feb 2020 17:00 Nawi Fiji  0.3
24 Feb 2020 17:00 Vunikura Fiji  0.3
21 Feb 2020 18:30 Navinggiri Fiji  0.3
21 Feb 2020 18:30 Yangganga Fiji  0.3
21 Feb 2020 18:30 Nawailevu Fiji  0.3
21 Feb 2020 18:30 Nasarowangga Fiji  0.3
21 Feb 2020 18:30 Navindamu Fiji  0.3
21 Feb 2020 11:15 Nailanga Fiji  0.3
21 Feb 2020 11:15 Sorokoba Fiji  0.3
21 Feb 2020 11:15 Ba Fiji  0.3
21 Feb 2020 11:15 Natunuka Fiji  0.3
24 Feb 2020 01:45 Namboutini Fiji  0.3
24 Feb 2020 09:15 Lovoni Fiji  0.3
24 Feb 2020 09:15 Nauouo Fiji  0.3
24 Feb 2020 09:15 Levuka Fiji  0.3
25 Feb 2020 10:15 Nayavutoka Fiji  0.3
21 Feb 2020 11:00 Tavua Fiji  0.2
21 Feb 2020 11:00 Rabulu Fiji  0.2
21 Feb 2020 11:00 Togowere Fiji  0.2
27 Feb 2020 00:00 Rave-rave Fiji  0.2
27 Feb 2020 00:00 Ndawara Fiji  0.2
27 Feb 2020 00:00 Waisa Fiji  0.2
27 Feb 2020 00:00 Natua Fiji  0.2
24 Feb 2020 08:45 Nagumu Fiji  0.2
21 Feb 2020 19:00 Napuka Fiji  0.2
24 Feb 2020 03:45 Vangai Fiji  0.2
24 Feb 2020 01:45 Namukalau Fiji  0.2
24 Feb 2020 01:45 Tawake Fiji  0.2
24 Feb 2020 01:45 Nukusa Fiji  0.2
24 Feb 2020 01:45 Nambouono Fiji  0.2
24 Feb 2020 09:15 Rakiraki Fiji  0.2
24 Feb 2020 09:15 Vaileka Fiji  0.2
24 Feb 2020 09:15 Nanukuloa Fiji  0.2
24 Feb 2020 09:15 Nasau Fiji  0.2
24 Feb 2020 08:15 Nanduri Fiji  0.2
24 Feb 2020 08:15 Vatutandova Fiji  0.2
23 Feb 2020 00:15 Koroinasolo Fiji  0.2
23 Feb 2020 00:15 Savu Sau Fiji  0.2
23 Feb 2020 00:15 Ndalomo Fiji  0.2
25 Feb 2020 05:00 Nasea Fiji  0.2
25 Feb 2020 05:00 Vunivatu Fiji  0.2
24 Feb 2020 01:15 Mbangata Fiji  0.2
24 Feb 2020 01:15 Savusavu Fiji  0.2
24 Feb 2020 01:15 Naindi Fiji  0.2
24 Feb 2020 06:00 Nabouwalu Fiji  0.2
24 Feb 2020 16:30 Galoa Fiji  0.2
24 Feb 2020 16:30 Yanutha Fiji  0.2
24 Feb 2020 16:30 Matavuralevu Fiji  0.2
24 Feb 2020 16:30 Pacific Harbour Fiji  0.2
24 Feb 2020 16:30 Waisomo Fiji  0.2
24 Feb 2020 16:30 Dakuimbeqa Fiji  0.2
24 Feb 2020 16:30 Lalati Fiji  0.2
24 Feb 2020 16:30 Navua Fiji  0.2
24 Feb 2020 16:30 Naitionitoni Fiji  0.2
24 Feb 2020 16:30 Mau Fiji  0.2
21 Feb 2020 11:15 Ndenimanu Fiji  0.2
25 Feb 2020 17:00 Kavala Fiji  0.2
25 Feb 2020 17:00 Vabea Fiji  0.2
21 Feb 2020 11:00 Naruwai Fiji  0.1
21 Feb 2020 11:00 Nabouwalu Fiji  0.1
26 Feb 2020 20:00 Thavanga Fiji  0.1
26 Feb 2020 20:00 Ndaria Fiji  0.1
26 Feb 2020 19:45 Nakondu Fiji  0.1
26 Feb 2020 19:45 Nathamaki Fiji  0.1
26 Feb 2020 19:45 Nasau Fiji  0.1
24 Feb 2020 16:15 Keteira Fiji  0.1
21 Feb 2020 10:45 Mbukama Fiji  0.1
26 Feb 2020 20:00 Makongai Fiji  0.1
26 Feb 2020 19:30 Korovou Fiji  0.1
26 Feb 2020 19:30 Korovisilou Fiji  0.1
25 Feb 2020 06:00 Nasau Fiji  0.1
25 Feb 2020 06:00 Talaulia Fiji  0.1
25 Feb 2020 06:00 Nalotu Fiji  0.1
25 Feb 2020 06:00 Vunisea Fiji  0.1
25 Feb 2020 06:00 Mburelevu Fiji  0.1
25 Feb 2020 06:00 Mokoisa Fiji  0.1
25 Feb 2020 06:00 Naikorokoro Fiji  0.1
25 Feb 2020 06:00 Namara Fiji  0.1
25 Feb 2020 06:00 Gasele Fiji  0.1
26 Feb 2020 20:00 Sawaieke Fiji  0.1
26 Feb 2020 20:00 Vione Fiji  0.1
26 Feb 2020 20:00 Vandravandra Fiji  0.1
26 Feb 2020 19:30 Navakawau Fiji  0.1
26 Feb 2020 19:45 Soso Fiji  0.1
26 Feb 2020 19:45 Kaduvu Fiji  0.1
21 Feb 2020 10:45 Yasawairara Fiji  0.1
23 Feb 2020 20:45 Dalice Fiji  0.1
24 Feb 2020 17:00 Nukuvou Fiji  0.1
24 Feb 2020 16:15 Bouwanga Fiji  0.1
24 Feb 2020 16:15 Taunovo Fiji  0.1
24 Feb 2020 16:15 Korolevu Fiji  0.1
21 Feb 2020 03:45 Navukembuli Fiji  0.1
21 Feb 2020 03:45 Naua Fiji  0.1
24 Feb 2020 16:15 Vatukarasa Fiji  0.1
26 Feb 2020 19:15 Kalokolevu Fiji  0.1
26 Feb 2020 19:15 Suva Fiji  0.1
26 Feb 2020 19:15 Tamavua Fiji  0.1
26 Feb 2020 19:15 Lauthala Bay Fiji  0.1