Overall Orange alert Tropical Cyclone for NANMADOL-22
in Japan


Tropical Cyclone NANMADOL-22 can have a medium humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS
Exposed countries Japan
Exposed population 16.2 million in Category 1 or higher
Maximum wind speed 250 km/h
Maximum storm surge n.a.
Vulnerability Low (Japan)


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 167 km/h n.a. n.a. 0.5
Overall 250 km/h 0.0 m n.a. 0.5

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


167 km/h Current Max.

Up to 59000 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
Green 1 12 Sep 2022 18:00 167 2.7 million 60 thousand Japan

Bulletin Timeline

Alert Date (UTC) Category
Max winds
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
1 12 Sep 2022 18:00 Tropical depression 46 no people no people 21.7, 138.5
1 13 Sep 2022 06:00 Tropical depression 56 no people <1000 people 22, 139.2
1 13 Sep 2022 18:00 Tropical storm 65 no people <1000 people 22.4, 139.7
1 14 Sep 2022 06:00 Tropical storm 74 no people <1000 people 23.1, 139.5
1 14 Sep 2022 18:00 Tropical storm 93 no people no people 23.6, 138.7
1 15 Sep 2022 18:00 Category 1 130 1900 people 77000 people 24.7, 135.3
1 16 Sep 2022 18:00 Category 2 167 59000 people 2.7 million people 26.4, 132.2
1 17 Sep 2022 18:00 Category 2 167 no people no people 29.1, 130.3
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.

Exposed population - AoIs

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




Region Province Country
Kyushu Japan

Critical infrastructure

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


Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Kitadaito KTD 24 Civ. Paved Yes 4900
Minami Daito MMD 4 Civ. Paved Yes 4900
Kikai 6 Civ. Paved Yes 3900
Amami O Shima ASJ 8 Civ. Paved Yes 6500


Name LOCODE Country
Kita Japan
Tokara Island Japan


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.



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.