Overall Green alert Tropical Cyclone for IRENE-23
in Vanuatu, New Caledonia
18 Jan 2023 18 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone IRENE-23 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GFS
Exposed countries Vanuatu, New Caledonia, New Zealand
Exposed population No people in Category 1 or higher
Maximum wind speed 104 km/h
Maximum storm surge 0.8 m (18 Jan 23:45 UTC)
Vulnerability Medium (New Caledonia)

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 104 km/h 0.8 m 200 mm 0.5
GFS Overall 104 km/h 0.9 m 591 mm 0.5

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

TOP

Wind

104 km/h

Up to 150 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 18 Jan 2023 18:00 UTC
CategoryCountryPopulation 
Tropical StormVanuatu, New Caledonia, New Zealand148,409
+
Vanuatu146,435 
New Caledonia1,941 
New Zealand32 

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 18 Jan 2023 00:00 86 - - - - - - -
GREEN 2 18 Jan 2023 06:00 90 - - - - - - -
GREEN 3 18 Jan 2023 12:00 97 -
- - - - - Vanuatu
GREEN 4 18 Jan 2023 18:00 108 -
- - - - - Vanuatu, New Caledonia, New Zealand
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 18 Jan 2023 18:00 UTC
LevelCountryPopulation 
250-500 mmVanuatu20,005 
100-250 mmPapua New Guinea, Vanuatu, New Caledonia174,821
+
Papua New Guinea49,326 
Vanuatu113,746 
New Caledonia11,749 
50-100 mmPapua New Guinea, Solomon Islands, Vanuatu, Fiji, New Caledonia, Australia445,787
+
Papua New Guinea229,172 
Solomon Islands2,304 
Vanuatu123,321 
Fiji31,440 
New Caledonia51,067 
Australia8,481 

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 18 Jan 2023 00:00 171 - - - - - - -
Blue 2 18 Jan 2023 06:00 166 - - - - - - -
Blue 3 18 Jan 2023 12:00 205 Few people
- - - - Vanuatu
Blue 4 18 Jan 2023 18:00 479 190 thousand
- - - Papua New Guinea, Solomon Islands, Vanuatu, Fiji, New Caledonia, Australia




Impact estimation for the next 72h
TOP

StormSurge

The calculations have been performed using NAMIDANCE computer code, from Middle East Technical University.
reference: Zaytsev, Andrey; Kurkin, Andrey; Pelinovsky, Efim; Yalciner, Ahmet C. - NUMERICAL TSUNAMI MODEL NAMI-DANCE. - Science of Tsunami Hazards . Nov2019, Vol. 38 Issue 4, p151-168. 18p.
Doaj

0.8 m

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 18 Jan 2023 18:00 UTC