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.

Red Tropical Cyclone alert in Vietnam for PAKHAR-12 from 29/03/2012 12:00 UTC to 01/04/2012 18:00 UTC
Summary
Tropical Cyclone impact
Storm surge
Extreme rain
Media analysis
Data Resources
Storm surge for tropical cyclone PAKHAR-12
Beta
alertimage

Green alert for storm surge impact in Vietnam

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 5 of tropical cyclone PAKHAR-12 issued at 30 Mar 2012 0:00:00 (GDACS Event ID 29158).

Summary

Current impact estimate:

  • Population affected by cyclone-strength winds (>120km/h): No people affected
  • Saffir-Simpson Category: Category 1
  • Maximum sustained wind speed: 121 km/h
  • The maximum Storm surge height is  1.5m in Ap Thien Ai, Vietnam. This height is estimated for 31 Mar 2012 21:00:00.

Evolution

Previous calculations: see calculation for advisory number 4 5 6 7 8 9 10 11 12 13 14 15

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)
31 Mar 2012 21:00:00 Ap Thien Ai Vietnam  1.5m
31 Mar 2012 21:00:00 Hoa Da Vietnam  1.4m
31 Mar 2012 22:00:00 Hai Long Vietnam  1.0m
31 Mar 2012 22:00:00 Ap Hoi Tam Vietnam  1.0m
31 Mar 2012 20:00:00 Tuy Phong Vietnam  0.9m
31 Mar 2012 20:00:00 Ap Vinh Hao Vietnam  0.8m
31 Mar 2012 13:00:00 Dao Phu Qui Vietnam  0.6m
31 Mar 2012 20:00:00 Thon Lac Nghie Vietnam  0.6m
31 Mar 2012 14:00:00 Thon Son Hai Vietnam  0.4m
01 Apr 2012 03:00:00 Phan Thiet Vietnam  0.4m
01 Apr 2012 05:00:00 Ke Ga Vietnam  0.4m
31 Mar 2012 16:00:00 Phan Rang Vietnam  0.3m
31 Mar 2012 01:00:00 Bengkikit  0.2m
31 Mar 2012 01:00:00 Penyegat  0.2m
Locations affected by Storm surge (15 of 190)
Calculation based on advisory number 5 of 30 Mar 2012 00:00:00.
(Simulation using 2 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.