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Green Tropical Cyclone alert in Japan for NORU-17 from 20 Jul 2017 18:00 UTC to 08 Aug 2017 12:00 UTC
Storm surge for tropical cyclone NORU-17
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Orange alert for storm surge impact in Japan

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.

This report is for advisory number 76 of tropical cyclone NORU-17 issued at 8 Aug 2017 12:00:00 (GDACS Event ID 1000372). However, the calculation for advisory number is not completed. Therefore, the latest available calculation is shown. All links, data, statistics and maps refer to the latest available calculation.

Summary

Current impact estimate:

  • Population affected by cyclone-strength winds (>120km/h): No people affected
  • Saffir-Simpson Category: Category 5
  • Maximum sustained wind speed: 259 km/h
  • The maximum Storm surge height is  1.4m in Kozakai, Japan. This height is estimated for 07 Aug 2017 14:00:00.

Evolution

Previous calculations: see calculation for advisory number 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

Show forecast grid

Storm surge

View animation and affected locations in an interactive map: open

Storm surge maximum height
Storm surge maximum height (Source: JRC)
Storm surge animation
Storm surge animation (Source: JRC)

Affected locations

Date Name Country Storm surge height (m)
07 Aug 2017 14:00:00 Kozakai Japan  1.4m
07 Aug 2017 14:00:00 Toyohashi Japan  1.3m
07 Aug 2017 12:00:00 Kamezu-Shinden Japan  1.3m
07 Aug 2017 12:00:00 Matsukage Japan  1.3m
07 Aug 2017 12:00:00 Sakai Japan  1.3m
07 Aug 2017 12:00:00 Nishi-hazu Japan  1.1m
07 Aug 2017 12:00:00 Tokoname Japan  1.0m
07 Aug 2017 12:00:00 Kume Japan  1.0m
07 Aug 2017 11:00:00 Itsuki Japan  1.0m
07 Aug 2017 14:00:00 Tahara Japan  1.0m
07 Aug 2017 11:00:00 Sakabe Japan  1.0m
07 Aug 2017 11:00:00 Yokkaichi Japan  1.0m
07 Aug 2017 11:00:00 Hasedashi Japan  1.0m
07 Aug 2017 12:00:00 Yamata Japan  1.0m
Locations affected by Storm surge (15 of 750)
Calculation based on advisory number 72 of 07 Aug 2017 12:00:00.
(Simulation using 0.5 minute resolution)

See full locations list (RSS)

More information

The atmospheric forcing included in the storm surge model are the pressure drop and the wind-water friction. The effects of the short waves induced by the wind (wave setup) and the precipitations are not yet implemented in the model. The model has been validated mainly in areas of shallow water (Caribbean, Bay of Bengal). Results in other basins may be inaccurate.

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