Overall Green alert Tropical Cyclone for TWELVE-20
Off-shore
26 Jan 2020 06 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone TWELVE-20 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 72 km/h
Maximum storm surge 0.2 m (26 Jan 10:15 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 72 km/h 0.2 m 83 mm 0.5
GFS Overall 72 km/h 0.3 m 324 mm 0.5

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

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Wind

72 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 26 Jan 2020 06:00 UTC

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 25 Jan 2020 12:00 58 - - - - - - -
GREEN 2 25 Jan 2020 18:00 68 - - - - - - -
GREEN 3 26 Jan 2020 00:00 68 - - - - - - -
GREEN 4 26 Jan 2020 06:00 72 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 26 Jan 2020 06:00 UTC
LevelCountryPopulation 
100-250 mmCook Islands257 
50-100 mmTokelau, American Samoa, Cook Islands490
+
Tokelau431 
Cook Islands42 
American Samoa17 

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 25 Jan 2020 12:00 83 - - - - - - -
Blue 2 25 Jan 2020 18:00 116 - - - - - - -
Blue 3 26 Jan 2020 00:00 118 - - - - - - -
Blue 4 26 Jan 2020 06:00 224 Few people
- - - - Tokelau, Cook Islands, American Samoa




Impact estimation for the next 72h
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StormSurge

0.2 m

The maximum Storm surge height is  0.2m in Foui, Tonga. This height is estimated for 26 Jan 2020 10:15 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 26 Jan 2020 06:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
26 Jan 2020 10:15 Foui Tonga  0.2
26 Jan 2020 10:15 Nukunuku Tonga  0.2
26 Jan 2020 10:15 Houma Tonga  0.2
26 Jan 2020 10:15 Pea Tonga  0.2
26 Jan 2020 10:15 Nuku'alofa Tonga  0.2
26 Jan 2020 10:15 Mua Tonga  0.2
26 Jan 2020 10:15 Fatumu Tonga  0.2
26 Jan 2020 10:15 Kolonga Tonga  0.2
26 Jan 2020 10:15 Niutoua Tonga  0.2
26 Jan 2020 11:30 Samatau Samoa  0.1
26 Jan 2020 11:30 Fuailalo Samoa  0.1
26 Jan 2020 11:30 Fasitootai Samoa  0.1
26 Jan 2020 11:30 Faleaseela Samoa  0.1
26 Jan 2020 11:30 Saleimoa Samoa  0.1
26 Jan 2020 12:00 Falelima Samoa  0.1
26 Jan 2020 06:45 Utuavanua Samoa  0.1
26 Jan 2020 06:45 Apia Samoa  0.1
26 Jan 2020 06:45 Solosolo Samoa  0.1
26 Jan 2020 10:15 Fuaamotu Tonga  0.1
26 Jan 2020 07:00 Mua Wallis and Futuna  0.1
26 Jan 2020 07:00 Mata-Utu Wallis and Futuna  0.1