Attachment A to Judgment for 19Aug 2024 (6)

 Linke and Linke Surveys                                                    SLR Ref No: 620.31071-R01-v3.0-FEMP.docx
 Flood Emergency Management Plan                                                                       February 2024
 111 Lake Weyba Drive, Noosaville




4          SOURCES OF FLOOD DATA
4.1        Government Managed Data Sources
Monitoring weather forecasts and warnings is an important part of the flood risk management process for the
site. The Noosa sand bar monitoring location provides the most representative storm tide conditions for the
site, accessed via the link: Storm tide data and tide predictions for Noosa River Sand Jetty monitoring site |
Environment, land and water | Queensland Government (www.qld.gov.au).

BoM activates the storm tide warning response system (STWRS) if it is anticipated that a storm tide could occur
in excess of HAT (1.10 mAHD). Storm tide warnings are updated at 6 and 3 hourly intervals during the cyclone
watch and warning phases respectively and, where possible, will be issued at least 24 hours prior to the forecast
onset of 100 km/h wind gusts.

BoM issues a flood watch if it is anticipated that an upcoming event may lead to flooding. A flood watch is
generally issued up to 4 days prior to the expected onset of flooding. It is not a warning of imminent flooding
but provides forewarning of the potential for flooding. A flood warning is issued when the Bureau becomes
more certain of likely flooding and may consist of a qualitative warning (minor, moderate, major flooding) or a
quantitative warning (forecast of an actual level in metres AHD). In the case of the Noosa River catchment, both
qualitative and quantitative warnings are typically issued.

There are no flood alert gauges in Weyba Creek. However, there is a gauge at the sand bar at Noosa (at the
Noosa River mouth) and at Tewantin. The locations of these gauges are shown on Figure 7. In terms of flood
level, for regional flooding the site is located between these two gauges. The flood level at the site is likely to
lie between the levels at these two gauges unless flooding is occurring in Weyba Creek only.




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