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Overall Orange alert Tropical Cyclone for KHANUN-17
in Chinafrom 12 Oct 2017 06:00 UTC to 13 Oct 2017 00:00 UTC
Automatic impact report for tropical cyclone KHANUN-17
alertimage

Current Orange alert for wind impact in China as of 13 Oct 2017 00:00:00 UTC

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

Current storm status

This report is for advisory number 17 of tropical cyclone KHANUN-17 issued at 16 Oct 2017 06:00 UTC (GDACS Event ID 1000411, Latest episode ID: 17, inserted at 13 Oct 2017 00:36 UTC ).

Current impact estimate:

  • Population affected by Category 1 (120 km/h) wind speeds or higher is 5.148 million
  • Tropical Depression (maximum wind speed of 167 km/h)
  • Vulnerability of affected countries: Medium

Impact of Extreme Wind

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  
Cloud map
Cloud map. Track and wind-buffer map. Green area: Area that can be affected by winds of more than 64 km/h (Tropical Storm strength). Orange area: Same, for winds of more than 92 km/h. Red area: Same, for winds above 120 km/h (Hurricane or Typhoon strength) (Source: JRC)
Cloud Map Zoomed on last forecast
Cloud Map Zoomed on last forecast. The zoomed map on the last track. (Source: JRC)

Affected population

Up to 3.4 million people people can be affected by wind speeds of cyclone strength or above. In addition, no people people are living in coastal areas below 5m and can therefore be affected by storm surge.

Affected provinces

Region Province Country Population
Hainan China 7.2 million people

Affected Populated Places (first 20 records)

Name Region Province Country City class Population Distance
Wencheng Hainan China City - 1094 km
Jiaji Hainan China City - 1119 km
Dingcheng Hainan China City - 1138 km
Jinjiang Hainan China City - 1172 km
Lingao Hainan China City 64000 people 1208 km

Critical infrastructure

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

Nearby and affected airports
Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Meilan HAK 23 0 1128 km
Jtalaishi 121 0 1200 km
Major ports
Name LOCODE Country Distance
Lin Kao China 1209 km

See complete report

Event time line

The storm evolution is shown in the table below. Alert levels and population estimates are related to the area from a point to the next.

Advisory Alert color Date (UTC) Category Wind speed Wind gusts Population affected
by cyclone winds (>120km/h)
Location (lat, lon)
1
GREEN
12 Oct 2017 06:00 Tropical depression 56 km/h (34 mph) km/h ( mph) no people 17.7, 124.2
2
GREEN
12 Oct 2017 12:00 Tropical storm 65 km/h (40 mph) km/h ( mph) no people 17.8, 123.3
3
GREEN
12 Oct 2017 18:00 Tropical storm 65 km/h (40 mph) km/h ( mph) no people 18.2, 122.1
4
GREEN
13 Oct 2017 00:00 Tropical storm 65 km/h (40 mph) km/h ( mph) no people 18.1, 121
4
GREEN
13 Oct 2017 12:00 Tropical storm 83 km/h (52 mph) km/h ( mph) no people 17.9, 119
4
GREEN
14 Oct 2017 00:00 Tropical storm 102 km/h (63 mph) km/h ( mph) no people 18.1, 117.7
4
GREEN
14 Oct 2017 12:00 Category 1 120 km/h (75 mph) km/h ( mph) no people 18.6, 116.3
4
ORANGE
15 Oct 2017 00:00 Category 1 139 km/h (86 mph) km/h ( mph) 3.4 million people 19.2, 114.2
4
ORANGE
16 Oct 2017 00:00 Tropical storm 111 km/h (69 mph) km/h ( mph) no people 19.5, 109.8
4
ORANGE
17 Oct 2017 00:00 Tropical storm 83 km/h (52 mph) km/h ( mph) no people 19, 105.6
4
GREEN
18 Oct 2017 00:00 Tropical depression 56 km/h (34 mph) km/h ( mph) no people 18.5, 102.5

Previous advisories

For accessing reports of previous advisories, please click on the advisory number in the table below.

IDAlert ColorDate (UTC)CategoryMaximum sustained
wind speed (km/h)
Population affected
by cyclone winds (>120km/h)
Affected countries
1 12 Oct 2017 06:00 Category 1 120 5.4 million China, Viet Nam, Laos, Thailand
2 12 Oct 2017 12:00 Category 1 139 3 million China
3 12 Oct 2017 18:00 Category 1 139 3.7 million China
4 13 Oct 2017 00:00 Category 1 139 3.5 million China
5 13 Oct 2017 06:00 Category 1 139 3 million China
6 13 Oct 2017 12:00 Category 1 139 3.9 million China
7 13 Oct 2017 18:00 Tropical storm 111 No people affected Philippines, China, Viet Nam, Laos
8 14 Oct 2017 00:00 Category 1 120 260 thousand China
9 14 Oct 2017 06:00 Category 1 120 3.8 million China
10 14 Oct 2017 12:00 Category 1 130 380 thousand China
11 14 Oct 2017 18:00 Category 1 130 2.4 million China
12 15 Oct 2017 00:00 Category 1 148 9.9 million China
13 15 Oct 2017 06:00 Category 2 167 9.3 million China
14 15 Oct 2017 12:00 Category 2 157 13.4 million China
15 15 Oct 2017 18:00 Category 1 120 11.5 million China
16 16 Oct 2017 00:00 Tropical storm 65 11.5 million China
17 16 Oct 2017 06:00 Tropical depression 46 11.5 million China

More information

Data resources

For a full list of available products related to this event, please refer to the GDACS Resources page.

About the data

JRC set up an automatic routine that includes the Tropical Cyclone (TC) bulletins produced by the National Oceanic and Atmospheric Administration (NOAA) and the Joint Typhoon Warning Center (JTWC) into a single database, covering all TC basins.

JRC calculates areas affected by high winds (wind buffers at 39, 58 and 74mph). This is done using the maximum reported wind radius (maximum of 4 quadrants) or, in case no wind radii are provided, through a regression analysis based on historical data. JRC also calculates the area affected by storm surge using HyFlux2 (hydrodynamic software).

Sources for data on critical infrastructure are: JRC NUMAS database (nuclear plants), ESRI (hydro dams, 1996), Global Discovery (airports, ports and cities).

Population data is from LandScan 2014.

Disclaimer

While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information. The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.