2020-10-21 Final Order - Approval Conditions and Approved Plans - P&E Appeal No 61 of 2018 - RAL17-0504

3.6           Emergency Response Strategies

3.6.1         Overview
Rainfall forecasts as listed in Section 2 are available up to 5 days in advance, with increasing certainty as the
prediction timeframe becomes shorter.

Triggers for an Emergency Response may then be based on the following strategy:
◼     5 Day forecast for upcoming severe weather event (i.e. heavy rainfall and/or storm event as predicted by
      the Bureau of Meteorology or third party provider)
      ◼   Residents to be alert of potential upcoming flood risk
      ◼   Prepare to shelter in place or self-evacuate as detailed in section 3.6.2 and 3.6.3.
      ◼   Continue to monitor forecasts and warnings
◼     3 Day forecast for upcoming severe weather event, potentially greater than 400mm rainfall
      ◼   Residents to be alert of potential upcoming flood risk and emergency response procedures. Suggest
          early self-evacuation for those with specific medical attention requirements.
◼     1 Day forecast – rainfall totals in excess of 300mm forecast for next 24 hours
      ◼   Commence Emergency Response Strategy
          ◼    Residents to shelter-in-place at floor levels at or above the PMF level; OR
          ◼    Residents to self-evacuate as per section 3.6.2

3.6.2         Shelter In Place
The primary emergency response strategy for the site is Shelter In Place.
◼     Once the site flood level gauge reaches a level of 1.3mAHD the siren is triggered and it is preferred that
      residents shelter in place.
      ◼   Detailed Emergency Response Actions are provided in Appendix B.
◼     Once the site flood level gauge reaches a level of 1.5m AHD Must self-evacuate before a flood event, a
      flood height siren will be triggered before the evacuation route is inundated:
      ◼   When the site flood height gauge reaches a level of 1.3mAHD (between a 1 in 20yr and 1in 50yr flood
          event) a flood height siren will be triggered.
      ◼   Residents must self-evacuate property BEFORE Lake Weyba Drive is covered by flood water. If there
          is water over road – cease evacuation and shelter in place.
      ◼   Detailed Emergency Response Actions are provided in Appendix B.




Flood Emergency Management Plan | 27 February 2020
135 Lake Weyba Drive, Noosaville                                                                         Page 16
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