Weather Warning Update - 23 March
Published on 23 March 2021
The Bureau of Meteorology (BoM) have advised that a strong high pressure system over the southern Tasman Sea is slowly moving east whilst a low pressure trough, currently over the eastern inland, continues to deepen and track to the southeast, bringing rain to the north and southeast. Heavy rainfall will begin to ease about central and north-eastern districts today, whilst developing about the southeast. Strong winds, damaging surf and abnormally high tides along the coast, and the areas of heavy rainfall will contract to the Southeast by the end of Tuesday or early Wednesday as the low pressure system heads off to the South Coast and a drier airmass follows in the wake. A severe weather warning is in place which covers the entire Shoalhaven region. Weather warnings have been issued as follows:
Flood Watch for Minor Flooding for the Shoalhaven River
http://www.bom.gov.au/nsw/warnings/flood/floodwatch1.shtml
Severe Weather Warning for Damaging Winds, Heavy Rainfall, Abnormally High Tides and Damaging Surf
http://www.bom.gov.au/products/IDN21037.shtml
Marine Wind Warning
http://www.bom.gov.au/nsw/warnings/marinewind.shtml
Hazardous Surf Warning
http://www.bom.gov.au/nsw/warnings/hazardoussurf.shtml
The following table summarises current water levels (at 3:00pm today) in key Council managed lake and river entrances. Lake Tabourie was opened to the sea on Saturday 20 March at 7:22pm.
Table 1 – Water level summary at key locations
|
Location
|
Water Level (m AHD)
|
Entrance Condition
|
Monitoring Status
|
Get ready level (m AHD)
|
Emergency opening level (m AHD)
|
|
Lake Conjola
|
0.72 (tidal)
|
Open
|
Monitor
|
0.8
|
1.2
|
|
Burrill Lake
|
0.44 (tidal)
|
Open
|
Monitor
|
0.85
|
1.2
|
|
Lake Tabourie
|
0.53 (tidal)
|
Open
|
Monitor
|
0.85
|
1.17
|
|
Shoalhaven Heads (Shoalhaven River)
|
1.04 (tidal)
|
Closed. Level of entrance berm below emergency trigger.
|
Machinery on site to lower entrance berm
|
1.5
|
2.0
|
|
Swan Lake
|
0.73
|
Closed
|
Monitor
|
2.0
|
2.5
|
Table 2 – 72-hour Rainfall Summary at key locations
|
Gauge Location
|
72-hour Rainfall Totals (mm)
|
|
Broughton Creek
|
116
|
|
Foxground
|
183
|
|
Greenwell Point
|
144
|
|
Nowra
|
160
|
|
Kangaroo Valley
|
113
|
|
Wattamolla
|
182
|
|
Currarong
|
105
|
|
Vincentia
|
95
|
|
Tomerong
|
188
|
|
Lake Conjola
|
135
|
|
Fishermans Paradise
|
135
|
|
Porters Creek Dam
|
130
|
|
Ulladulla
|
157
|
|
Burill Lake
|
101
|
|
Lake Tabourie
|
148
|
|
Brooman
|
140
|
Please follow the Bureau of Meteorology links below for weather and water level information:
New South Wales Warnings Summary
Latest River Heights for the NSW South Coast
BOM Weather Radar
Interactive Weather and Wave Forecast Maps
Forecast Rainfall Map
MetEye - comprehensive weather tool
Council is reminding residents that anyone needing assistance should contact the SES on 132 500.
Flood safe information can be accessed from the SES FloodSafe website.