10 January 2011
Ipswich and SEQ flood update
FLOOD WARNING FOR COASTAL STREAMS FROM MARYBOROUGH TO THE NSW BORDER
Issued at 11:02 PM on Sunday the 9th of January 2011 by the Bureau of Meteorology, Brisbane.
A rainband stretches from Gympie to the northern suburbs of Brisbane and inland to Dalby.
Rainfall totals of up 260 millimetres have been recorded in the Sunshine Coast region since 9am Sunday.
Rainfall has generally eased in the past two hours, however, further heavy rainfall is expected overnight and during Monday.
Forecast from BOM is that the upper level trough is definitely moving south and broadening, expected to reach between the Sunshine Coast and the border within the next 3-4 hours.
Expect a general increase in rainfall over the next 3 to 4 hours with likely rain intensifying from about 3am onwards across the catchment.
Expectation of in excess of 200 mm of rain within the next 24 hours, in Ipswich catchment area.
Heavy rain will relate to increased flows in all streams with particular concerns for smaller creeks such as Bundamba, Six Mile and Woogaroo.
As a result of the proposed increased releases from Wivenhoe Dam, the prediction of the following level has been provided (peak expected Tuesday 11/1/01):
Mt Crosby Weir: 17m
Colleges Crossing: 14.5m (Calculations for Colleges Crossing based on previous relationships between Mt Crosby Weir, Colleges and Moggill indicate a approximate predicted level)
Ipswich : 8m (backflow from Brisbane River)
Ipswich Catchment Update
In the last 2 hours we have had only 1 - 2mm, which has mainly fallen in the northern areas of Ipswich region. As such, we have seen falls in Western Creek and are still seeing rises in the Bremer, Warrill and Purga as previous run-off moves through the system.