GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green alert Tropical Cyclone for JOSE-17
in United States, Virgin Islands, British, Virgin Islands, U.S., Anguilla, Antigua and Barbuda, Saint Kitts and Nevis, Montserrat, Guadeloupefrom 05 Sep 2017 15:00 UTC to 13 Sep 2017 21:00 UTC
Storm surge for tropical cyclone JOSE-17
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Orange alert for storm surge impact in United States

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 34 of tropical cyclone JOSE-17 issued at 13 Sep 2017 21:00:00 (GDACS Event ID 1000396).

Summary

Current impact estimate:

  • Population affected by cyclone-strength winds (>120km/h): No people affected
  • Saffir-Simpson Category: Category 4
  • Maximum sustained wind speed: 250 km/h
  • The maximum Storm surge height is  0.4m in California, United States. This height is estimated for 17 Sep 2017 21:00:00.

Evolution

Previous calculations: see calculation for advisory number 1 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

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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)
17 Sep 2017 21:00:00 California United States  0.4m
17 Sep 2017 21:00:00 Mother Vineyard United States  0.4m
17 Sep 2017 21:00:00 Manteo United States  0.4m
17 Sep 2017 21:00:00 Wanchese United States  0.4m
17 Sep 2017 21:00:00 Powells Point United States  0.4m
17 Sep 2017 21:00:00 Mamie United States  0.4m
17 Sep 2017 21:00:00 Point Harbor United States  0.4m
17 Sep 2017 21:00:00 Colington United States  0.4m
17 Sep 2017 21:00:00 Fort Raleigh City United States  0.4m
17 Sep 2017 21:00:00 Manns Harbor United States  0.4m
17 Sep 2017 21:00:00 Poplar Branch United States  0.4m
17 Sep 2017 21:00:00 Grandy United States  0.4m
17 Sep 2017 21:00:00 Jarvisburg United States  0.4m
17 Sep 2017 21:00:00 Public Landing United States  0.3m
Locations affected by Storm surge (15 of 725)
Calculation based on advisory number 34 of 13 Sep 2017 21:00:00.
(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.