Overall Green alert Tropical Cyclone for DONNA-17
in New Caledonia

Impact

Tropical Cyclone DONNA-17 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS
Exposed countries New Caledonia
Exposed population No people in Category 1 or higher
Maximum wind speed 213 km/h
Maximum storm surge 0.4 m (04 May 21:00 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
Current 213 km/h 0.1 m n.a. 0.5
Overall 213 km/h 0.4 m n.a. 0.5

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

Wind

213 km/h Current Max.

Up to 12000 people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Red 1 02 May 2017 18:00 204 230 thousand 90 thousand Vanuatu
Red 2 03 May 2017 06:00 204 260 thousand 140 thousand Vanuatu
Red 3 03 May 2017 18:00 204 260 thousand 100 thousand Vanuatu
Green 4 04 May 2017 06:00 204 240 thousand 1 thousand Solomon Islands, Vanuatu, New Caledonia
Green 5 04 May 2017 18:00 204 270 thousand 1 thousand Vanuatu, Solomon Islands, New Caledonia
Green 6 05 May 2017 00:00 204 230 thousand 1 thousand Vanuatu, Solomon Islands, New Caledonia
Green 7 05 May 2017 06:00 213 370 thousand 10 thousand New Caledonia

Bulletin Timeline

Alert Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
GREEN
1 02 May 2017 18:00 Tropical storm 74 no people no people -13, 171.9
GREEN
2 03 May 2017 06:00 Tropical storm 102 no people no people -12.7, 171.2
GREEN
3 03 May 2017 18:00 Category 1 120 no people 8200 people -12.9, 169.6 Vanuatu
GREEN
4 04 May 2017 06:00 Category 1 148 no people 15000 people -12.4, 168.1 Solomon Islands
GREEN
5 04 May 2017 18:00 Category 2 157 1500 people 44000 people -13, 166.8 Solomon Islands
GREEN
6 05 May 2017 00:00 Category 2 157 1200 people 30000 people -13.1, 166.2 Solomon Islands
GREEN
7 05 May 2017 06:00 Category 2 167 no people 18000 people -13.6, 165.6 Vanuatu
GREEN
7 05 May 2017 18:00 Category 2 176 no people 24000 people -14, 164.9 Vanuatu
GREEN
7 06 May 2017 06:00 Category 3 185 no people 28000 people -14.4, 164.6 Vanuatu
GREEN
7 06 May 2017 18:00 Category 3 194 no people 35000 people -14.9, 164.5 Vanuatu
GREEN
7 07 May 2017 06:00 Category 4 213 no people 68000 people -15.7, 164.5 New Caledonia
GREEN
7 08 May 2017 06:00 Category 4 213 <1000 people 260000 people -17.9, 165.1 New Caledonia
GREEN
7 09 May 2017 06:00 Category 1 148 11000 people 290000 people -19.9, 166.7 New Caledonia
GREEN
7 10 May 2017 06:00 Tropical storm 74 no people no people -21.7, 169 New Caledonia
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.
Download:



Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country
New Caledonia

Provinces

Region Province Country
New Caledonia New Caledonia

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Torres TOH unknown 0
Wanaham LIF 28 Civ. Paved No 3600
Mare la Roche MEE 43 Civ. Paved No 3200

Ports

Name LOCODE Country
We New Caledonia

Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

...

StormSurge

0.4 m

The maximum Storm surge height is  0.4m in Gavigamana, Vanuatu. This height is estimated for 04 May 2017 21:00 UTC .

The JRC has developed an experimental global storm surge model. 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.

Locations affected by Storm surge (6 locations). Calculation based on advisory number 7 of 05 May 2017 06:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
04 May 2017 21:00 Gavigamana Vanuatu  0.4
04 May 2017 22:00 Vipaka Vanuatu  0.2
09 May 2017 06:00 Teouta New Caledonia  0.1
09 May 2017 06:00 Wegnec St-Joseph New Caledonia  0.1
09 May 2017 06:00 Ognat New Caledonia  0.1
09 May 2017 06:00 Wadrilla New Caledonia  0.1