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Overall Orange alert Tropical Cyclone for OCKHI-17
in India, Maldives, Sri Lankafrom 29 Nov 2017 18:00 UTC to 05 Dec 2017 06:00 UTC
Automatic impact report for tropical cyclone OCKHI-17
alertimage

Current Orange alert for wind impact in India, Maldives, Sri Lanka as of 05 Dec 2017 06:00:00 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 23 of tropical cyclone OCKHI-17 issued at 05 Dec 2017 06:00 UTC (GDACS Event ID 1000422, Latest episode ID: 23, inserted at 05 Dec 2017 07:18 UTC ).

Current impact estimate:

  • Population affected by Category 1 (120 km/h) wind speeds or higher is 0
  • Tropical Storm (maximum wind speed of 185 km/h)
  • Vulnerability of affected countries: High

Impact of Extreme Wind

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  
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 no 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

Affected Populated Places (first 20 records)

Critical infrastructure

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

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
ORANGE
29 Nov 2017 18:00 Tropical storm 65 km/h (40 mph) km/h ( mph) no people 6.6, 78.8
2
ORANGE
30 Nov 2017 00:00 Tropical storm 74 km/h (46 mph) km/h ( mph) no people 7.5, 77.3
3
GREEN
30 Nov 2017 06:00 Tropical storm 93 km/h (57 mph) km/h ( mph) no people 7.8, 76.6
4
ORANGE
30 Nov 2017 12:00 Tropical storm 102 km/h (63 mph) km/h ( mph) no people 8.4, 75.6
5
GREEN
30 Nov 2017 18:00 Tropical storm 111 km/h (69 mph) km/h ( mph) no people 8.5, 74.7
6
GREEN
01 Dec 2017 00:00 Tropical storm 111 km/h (69 mph) km/h ( mph) no people 8.7, 74.2
7
GREEN
01 Dec 2017 06:00 Category 1 130 km/h (80 mph) km/h ( mph) 1200 people 8.8, 73.5
8
GREEN
01 Dec 2017 12:00 Category 1 130 km/h (80 mph) km/h ( mph) no people 8.9, 72.6
9
GREEN
01 Dec 2017 18:00 Category 1 148 km/h (92 mph) km/h ( mph) no people 9.2, 72
10
GREEN
02 Dec 2017 00:00 Category 2 157 km/h (98 mph) km/h ( mph) no people 9.4, 71.5
11
GREEN
02 Dec 2017 06:00 Category 2 157 km/h (98 mph) km/h ( mph) no people 9.9, 71
12
GREEN
02 Dec 2017 12:00 Category 2 176 km/h (109 mph) km/h ( mph) no people 10.6, 70.4
13
GREEN
02 Dec 2017 18:00 Category 3 185 km/h (115 mph) km/h ( mph) no people 11.3, 69.8
14
GREEN
03 Dec 2017 00:00 Category 2 176 km/h (109 mph) km/h ( mph) no people 11.7, 69.3
15
GREEN
03 Dec 2017 06:00 Category 1 148 km/h (92 mph) km/h ( mph) no people 12, 68.8
16
GREEN
03 Dec 2017 12:00 Category 1 139 km/h (86 mph) km/h ( mph) no people 12.8, 68.7
17
GREEN
03 Dec 2017 18:00 Category 1 139 km/h (86 mph) km/h ( mph) no people 13.6, 68.6
18
GREEN
04 Dec 2017 00:00 Category 1 130 km/h (80 mph) km/h ( mph) no people 14.2, 68.7
19
GREEN
04 Dec 2017 06:00 Category 1 130 km/h (80 mph) km/h ( mph) no people 14.8, 68.7
20
GREEN
04 Dec 2017 12:00 Category 1 120 km/h (75 mph) km/h ( mph) no people 15.4, 68.9
21
GREEN
04 Dec 2017 18:00 Tropical storm 111 km/h (69 mph) km/h ( mph) no people 16.5, 69.6
22
ORANGE
05 Dec 2017 00:00 Tropical storm 111 km/h (69 mph) km/h ( mph) no people 17.4, 70.4
23
ORANGE
05 Dec 2017 06:00 Tropical storm 83 km/h (52 mph) km/h ( mph) no people 18.2, 70.6
23
GREEN
05 Dec 2017 18:00 Tropical storm 74 km/h (46 mph) km/h ( mph) no people 20.2, 71.5

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 29 Nov 2017 18:00 Tropical storm 102 2 thousand Sri Lanka, India
2 30 Nov 2017 00:00 Tropical storm 93 2 thousand India, Sri Lanka
3 30 Nov 2017 06:00 Category 1 139 2 thousand India, Sri Lanka
4 30 Nov 2017 12:00 Category 1 130 270 thousand India
5 30 Nov 2017 18:00 Category 1 130 580 thousand India
6 01 Dec 2017 00:00 Category 1 130 40 thousand India
7 01 Dec 2017 06:00 Tropical storm 111 1 thousand India, Sri Lanka
8 01 Dec 2017 12:00 Tropical storm 65 No people affected India, Maldives, Sri Lanka
9 01 Dec 2017 18:00 Tropical storm 102 No people affected India, Maldives, Sri Lanka
10 02 Dec 2017 00:00 Category 2 176 No people affected India, Maldives, Sri Lanka
11 02 Dec 2017 06:00 Tropical storm 93 No people affected India, Maldives, Sri Lanka
12 02 Dec 2017 12:00 Category 1 139 No people affected India, Maldives, Sri Lanka
13 02 Dec 2017 18:00 Category 1 139 No people affected India, Maldives, Sri Lanka
14 03 Dec 2017 00:00 Tropical storm 102 No people affected India, Maldives, Sri Lanka
15 03 Dec 2017 06:00 Tropical storm 65 No people affected India, Maldives, Sri Lanka
16 03 Dec 2017 12:00 Tropical storm 74 No people affected India, Maldives, Sri Lanka
17 03 Dec 2017 18:00 Tropical storm 65 No people affected India, Maldives, Sri Lanka
18 04 Dec 2017 00:00 Category 1 130 No people affected India, Maldives, Sri Lanka
19 04 Dec 2017 06:00 Category 1 130 No people affected India, Maldives, Sri Lanka
20 04 Dec 2017 12:00 Category 1 120 No people affected India, Maldives, Sri Lanka
21 04 Dec 2017 18:00 Tropical storm 74 No people affected India, Maldives, Sri Lanka
22 05 Dec 2017 00:00 Tropical storm 111 No people affected India, Maldives, Sri Lanka
23 05 Dec 2017 06:00 Tropical storm 83 No people affected India, Maldives, Sri Lanka

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.