Overall Red alert Tropical Cyclone for GITA-18
in Tonga

Current storm status

This tropical cyclone is expected to have a high humanitarian impact based on the storm strength and the affected population in the past and forecasted path.

Up to 83000 people can be affected by wind speeds of cyclone strength or above.

Population affected by Category 1 (120 km/h) wind speeds or higher is: 80 thousand
Maximum windspeed: 231 Km/h
Vulnerability of affected countires: Medium

Bulletin Timeline

Advisory Alert color Date (UTC) Category Wind speed Wind gusts Population affected
by cyclone winds (>120km/h)
Location (lat, lon)
18
GREEN
13 Feb 2018 06:00 Category 4 213 km/h (132 mph) km/h ( mph) <1000 people -21, -179.5
19
GREEN
13 Feb 2018 12:00 Category 3 204 km/h (126 mph) km/h ( mph) no people -21.1, 179.5
19
GREEN
14 Feb 2018 00:00 Category 3 204 km/h (126 mph) km/h ( mph) no people -21.3, 177.8
19
GREEN
14 Feb 2018 12:00 Category 3 194 km/h (120 mph) km/h ( mph) no people -21.6, 176.1
19
GREEN
15 Feb 2018 00:00 Category 3 185 km/h (115 mph) km/h ( mph) no people -22, 174.4
19
GREEN
15 Feb 2018 12:00 Category 2 176 km/h (109 mph) km/h ( mph) <1000 people -22.6, 172.6
19
GREEN
16 Feb 2018 12:00 Category 2 157 km/h (98 mph) km/h ( mph) no people -24.8, 169
19
GREEN
17 Feb 2018 12:00 Category 1 120 km/h (75 mph) km/h ( mph) no people -27.4, 166.4
19
GREEN
18 Feb 2018 12:00 Tropical storm 93 km/h (57 mph) km/h ( mph) no people -31.3, 165.3

Wind

Up to 83000 people can be affected by wind speeds of cyclone strength or above.

Affected countries

Country
Tonga

Affected provinces

Region Province Country Population
Tonga Tonga 98000 people

Affected populated places

Name Region Province Country City class Population Distance
Nuku'alofa Tonga Capital 24000 people 549 km

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Ono-I-Lau ONU unknown 0 194 km
Fua'amotu International TBU 38 Civ. Paved Yes 8700 557 km
Eua Kaufana EUA unknown 0 576 km

Ports

Name LOCODE Country Distance
Nuku'alofa TOTBU Tonga 550 km
Eua Island Tonga 581 km
Hunter Island New Caledonia 783 km
Matthew Island New Caledonia 854 km

StormSurge

The maximum Storm surge height is  0.3m in Gadji, New Caledonia. This height is estimated for 16 Feb 2018 12:00:00.

Date Name Country Alert Storm surge height (m)
16 Feb 2018 12:00:00 Gadji New Caledonia  0.3m
16 Feb 2018 12:00:00 Wapan New Caledonia  0.3m
16 Feb 2018 11:00:00 Kuto New Caledonia  0.2m
16 Feb 2018 14:00:00 Vao New Caledonia  0.2m
16 Feb 2018 09:00:00 Plum New Caledonia  0.2m
16 Feb 2018 10:00:00 Prony New Caledonia  0.2m
16 Feb 2018 09:00:00 Saint-Louis New Caledonia  0.2m
16 Feb 2018 13:00:00 Tomo New Caledonia  0.1m
16 Feb 2018 08:00:00 Dumbea New Caledonia  0.1m
16 Feb 2018 08:00:00 Ouara New Caledonia  0.1m
16 Feb 2018 13:00:00 Nouville New Caledonia  0.1m
16 Feb 2018 13:00:00 Noumea New Caledonia  0.1m
16 Feb 2018 13:00:00 Comm. du Mont-Dore New Caledonia  0.1m
16 Feb 2018 02:00:00 Bouloupari New Caledonia  0.1m
16 Feb 2018 08:00:00 Goro New Caledonia  0.1m
16 Feb 2018 09:00:00 Paita New Caledonia  0.1m
14 Feb 2018 03:00:00 Lautoka Fiji  0.1m
16 Feb 2018 08:00:00 Nde New Caledonia  0.1m

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.

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