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.

Green Tropical Cyclone alert in United States for DEBBY-12 from 23/06/2012 21:00 UTC to 27/06/2012 21:00 UTC
Summary
Tropical Cyclone impact
Storm surge
Extreme rain
Media analysis
Data Resources
Storm surge for tropical cyclone DEBBY-12
Beta
alertimage

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 9 of tropical cyclone DEBBY-12 issued at 25 Jun 2012 15:00:00 (GDACS Event ID 30970).

Summary

Current impact estimate:

  • Population affected by cyclone-strength winds (>120km/h): No people affected
  • Saffir-Simpson Category: Tropical storm
  • Maximum sustained wind speed: 93 km/h
  • The maximum Storm surge height is  1.9m in Shired Island, United States. This height is estimated for 28 Jun 2012 11:00:00.

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

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)
28 Jun 2012 11:00:00 Shired Island United States  1.9m
28 Jun 2012 13:00:00 Yankeetown  1.8m
25 Jun 2012 08:00:00 Panacea  1.7m
28 Jun 2012 13:00:00 Sumner  1.7m
25 Jun 2012 08:00:00 Wakulla Beach  1.6m
25 Jun 2012 08:00:00 Surf United States  1.6m
25 Jun 2012 10:00:00 Skipper  1.6m
28 Jun 2012 12:00:00 Horseshoe Beach United States  1.6m
28 Jun 2012 13:00:00 Suwannee  1.6m
25 Jun 2012 09:00:00 Tilton United States  1.5m
25 Jun 2012 09:00:00 Sun N Sand Beaches United States  1.5m
28 Jun 2012 10:00:00 Cedar Key United States  1.5m
25 Jun 2012 08:00:00 Newport  1.4m
25 Jun 2012 08:00:00 Mandalay  1.4m
Locations affected by Storm surge (15 of 832)
Calculation based on advisory number 9 of 25 Jun 2012 15:00:00.
(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.