Overall Green alert Tropical Cyclone for TWELVE-20
Off-shore

Impact

Tropical Cyclone TWELVE-20 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 76 km/h
Maximum storm surge 0.3 m (28 Jan 23:45 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
HWRF Current 76 km/h 0.3 m 657 mm 0.5
HWRF Overall 76 km/h 0.3 m 657 mm 0.5

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

Wind

76 km/h

No people by wind speeds of Tropical Storm strength or above



Wind exposed population

No exposed population (in Tropical Storm or higher) based on the bulletin of 27 Jan 2020 00:00 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 25 Jan 2020 12:00 65 - - - - - - -
GREEN 2 25 Jan 2020 18:00 72 - - - - - - -
GREEN 3 26 Jan 2020 00:00 68 - - - - - - -
GREEN 4 26 Jan 2020 06:00 72 - - - - - - -
GREEN 5 26 Jan 2020 12:00 65 - - - - - - -
GREEN 6 26 Jan 2020 18:00 54 - - - - - - -
GREEN 7 27 Jan 2020 00:00 76 - - - - - - -




Impact estimation for the next 72h





Rain exposed population

No exposed population (greater than 50mm) based on the bulletin of 27 Jan 2020 00:00 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 25 Jan 2020 12:00 133 - - - - - - -
Blue 2 25 Jan 2020 18:00 69 - - - - - - -
Blue 3 26 Jan 2020 00:00 144 - - - - - - -
Blue 4 26 Jan 2020 06:00 164 - - - - - - -
Blue 5 26 Jan 2020 12:00 170 - - - - - - -
Blue 6 26 Jan 2020 18:00 47 - - - - - - -
Blue 7 27 Jan 2020 00:00 657 - - - - - - -




Impact estimation for the next 72h

StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Samatau, Samoa. This height is estimated for 28 Jan 2020 23:45 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 27 Jan 2020 00:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
28 Jan 2020 23:45 Samatau Samoa  0.3
28 Jan 2020 23:45 Fuailalo Samoa  0.3
28 Jan 2020 23:45 Fasitootai Samoa  0.3
28 Jan 2020 23:45 Faleaseela Samoa  0.3
28 Jan 2020 23:45 Saleimoa Samoa  0.3
28 Jan 2020 12:30 Pea Tonga  0.2
28 Jan 2020 12:30 Nuku'alofa Tonga  0.2
28 Jan 2020 12:30 Mua Tonga  0.2
28 Jan 2020 12:30 Fatumu Tonga  0.2
28 Jan 2020 12:30 Kolonga Tonga  0.2
28 Jan 2020 12:30 Niutoua Tonga  0.2
29 Jan 2020 06:45 Foui Tonga  0.2
29 Jan 2020 06:45 Nukunuku Tonga  0.2
29 Jan 2020 06:45 Houma Tonga  0.2
27 Jan 2020 15:30 Falelima Samoa  0.2
28 Jan 2020 08:45 Mua Wallis and Futuna  0.2
28 Jan 2020 08:45 Mata-Utu Wallis and Futuna  0.2
29 Jan 2020 10:45 Apia Samoa  0.2
29 Jan 2020 10:45 Solosolo Samoa  0.2
28 Jan 2020 14:45 Pangai Tonga  0.2
28 Jan 2020 23:45 Utuavanua Samoa  0.2
26 Jan 2020 17:00 Lotofago Samoa  0.1
26 Jan 2020 17:00 Amaile Samoa  0.1
29 Jan 2020 19:00 Pago Pago American Samoa  0.1
29 Jan 2020 19:00 Siufaga American Samoa  0.1
29 Jan 2020 19:00 Nuuuli American Samoa  0.1
29 Jan 2020 19:00 Fagatogo American Samoa  0.1
29 Jan 2020 19:00 Atuu American Samoa  0.1
29 Jan 2020 19:00 Utulei American Samoa  0.1
29 Jan 2020 19:00 Matuu American Samoa  0.1
29 Jan 2020 19:00 Fagaalu American Samoa  0.1
29 Jan 2020 19:00 Leloaloa American Samoa  0.1
29 Jan 2020 19:00 Aua American Samoa  0.1
29 Jan 2020 19:00 Lauliifou American Samoa  0.1
29 Jan 2020 19:00 Afono American Samoa  0.1
29 Jan 2020 19:00 Masefau American Samoa  0.1
29 Jan 2020 19:00 Auto American Samoa  0.1
29 Jan 2020 19:00 Fagaitua American Samoa  0.1
29 Jan 2020 19:00 Alofau American Samoa  0.1
29 Jan 2020 19:00 Aoa American Samoa  0.1
29 Jan 2020 19:00 Amouli American Samoa  0.1
29 Jan 2020 19:00 Onenoa American Samoa  0.1
29 Jan 2020 19:00 Alao American Samoa  0.1
29 Jan 2020 19:00 Tula American Samoa  0.1
29 Jan 2020 19:00 Aunuu American Samoa  0.1
28 Jan 2020 08:30 Falealupo Samoa  0.1
28 Jan 2020 04:30 Fuaamotu Tonga  0.1
26 Jan 2020 05:15 Ohonua Tonga  0.1
28 Jan 2020 19:00 Puapua Samoa  0.1
28 Jan 2020 19:00 Salelologa Samoa  0.1
28 Jan 2020 19:00 Tuasivi Samoa  0.1
25 Jan 2020 14:15 Neiafu Tonga  0.1
29 Jan 2020 00:00 Satupaitea Samoa  0.1
28 Jan 2020 09:15 Omoka Cook Islands  0.1
28 Jan 2020 09:15 Tautua Cook Islands  0.1
28 Jan 2020 08:45 Poloa American Samoa  0.1
28 Jan 2020 08:45 Amanave American Samoa  0.1
28 Jan 2020 08:45 Seetaga American Samoa  0.1
28 Jan 2020 08:45 Fagamalo American Samoa  0.1
28 Jan 2020 08:45 Amaluia American Samoa  0.1
28 Jan 2020 08:45 Leone American Samoa  0.1
28 Jan 2020 08:45 Vailoatai American Samoa  0.1
28 Jan 2020 08:45 Taputimu American Samoa  0.1
28 Jan 2020 08:45 Aasu American Samoa  0.1
28 Jan 2020 08:45 Futiga American Samoa  0.1
28 Jan 2020 08:45 Pavaiai American Samoa  0.1
28 Jan 2020 08:45 Vaitogi American Samoa  0.1
28 Jan 2020 08:45 Iliili American Samoa  0.1
28 Jan 2020 08:45 Mesepa American Samoa  0.1
28 Jan 2020 08:45 Faleniu American Samoa  0.1
28 Jan 2020 08:45 Fagasa American Samoa  0.1
28 Jan 2020 08:45 Esia Fiji  0.1

Calculation folder at this link