2016-07-18 General Committee Meeting - Item 3 - Attachment 1 - Flood Management Plan

In August 2007, in association with an upper trough              More recent severe weather events that have impacted




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system and an east coast low (ECL) several rainfall stations     more broadly upon south east Queensland such as the




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in Noosa recorded rainfall depths of greater than 650mm          2011 Brisbane Floods, 2013 ex TC Oswald and 2015 ex TC




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in 24 hours.                                                     Marcia have not resulted in significant flooding conditions




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                                                                 within Noosa Shire. However; many low lying areas of
The flood levels reached in the Noosa River were the             Noosa Shire are prone to flooding from small to medium
highest since 1992 and the third highest on record. This         sized rainfall events. These locations are subjected to more
caused significant flooding in Lake Cooroibah and Lake           regular nuisance flooding that does not generate significant
Cootharaba and moderate flooding at Tewantin. The                loss to the community.
Bureau of Meteorology reported that this particularly rare
event broke many monthly records for August with some            Upon reflection, Noosa Shire has been relatively fortunate
daily totals being the highest on record for any month. The      to not have borne the brunt of some of the broader region’s
most statistically significant rainfall intensity was recorded   more significant flood events. However, the historical
at Coops Corner TM in the river headwaters above Lake            records are relatively short and the Shire’s coastal proximity,
Cootharaba. In only a 3 hour period a total of 415mm             river estuaries and flood plains provide good reason to be
of rainfall was recorded. Water levels in the Lakes and at       vigilant in determining and managing the risks associated
Tewantin remained elevated above minor flood levels for          with flooding.
3 to 4 days.




February 1992 Gympie Terrace Noosa Council Library Archives




                                                                                      Noosa Council | Flood Management Plan | Page 12