Australian Government Bureau of Meteorology, Western Australia
Major Flood Warning For The De Grey River Catchment
Issued at 05:37 PM WST on Sunday 16 February 2025
Flood Warning Number: 11
MAJOR FLOODING OCCURRING AT COOLENAR POOL
A major flood peak above the March 2000 flood levels was observed along the De Grey River at Coolenar Pool early Sunday morning, where river levels are now slowly easing. Renewed rises are possible as floodwaters continue to arrive from upstream.
River levels along the De Grey River at Coolenar Pool will remain elevated into mid-week as peaks from the Shaw and Coongan Rivers are followed by peaks from the Nullagine and Oakover Rivers.
River level rises and areas of flooding may adversely affect road conditions. Some roads may become impassable and communities may become isolated. Significant disruption of transportation network and extensive road closures are expected.
Oakover River:
Minor flooding is easing slowly along the Oakover River at Ripon Hills Rd.
Nullagine River:
Moderate flooding is occurring at Tumbinna Pool and minor flooding is occurring at Nullagine along the Nullagine River. River levels are slowly easing, however high river levels and areas of flooding are likely to remain during the remainder of Sunday into Monday.
Coongan River:
Moderate flooding is easing at Marble Bar and minor flooding is easing at Marble Bar Rd Crossing along the Coongan River. Further areas of flooding are likely along the Coongan River downstream of Marble Bar Rd Crossing during the remainder of Sunday into Monday.
Shaw River:
Minor flooding is easing slowly at Marble Bar Rd Crossing along the Shaw river. Minor flooding is likely occurring at North Pole Mine. Further areas of flooding are likely along the Shaw River between Marble Bar Rd Crossing and Coolenar Pool on the De Grey River during the remainder of Sunday into Monday.
De Grey River:
Major flooding is occurring along the De Grey River.
The De Grey River at Coolenar Pool peaked above the March 2000 flood levels (8.86 m) early Sunday morning. The river level is currently at 8.89 metres and falling slowly with major flooding.
The De Grey River at Coolenar Pool is likely to remain above the major flood level (8.00 m) during the remainder of Sunday and into Monday morning. Renewed rises are possible as floodwaters arrive from upstream.
Flood Safety Advice:
DFES advises people and communities to be aware that flooding is possible and be prepared to relocate equipment and livestock. Watch water levels. Travellers need to be aware that road conditions may be adversely affected and travel plans may need to be reconsidered. Do not drive into water of unknown depth and velocity.}
Community information is available from DFES at www.dfes.wa.gov.au
Current river levels are available from Department of Water and Environmental Regulation at www.water.wa.gov.au/maps-and-data/monitoring/river-level-monitoring
Next issue:
The next warning will be issued by 08:00 am WST on Monday 17 February 2025.
Latest River Heights:
Oakover River at Ripon Hills Road,4.50,Steady,05:05 PM SUN 16/02/25
Nullagine River at Nullagine,1.28,Steady,05:00 PM SUN 16/02/25
Nullagine River at Tumbinna Pool,3.99,Falling,05:05 PM SUN 16/02/25
Coongan River at Marble Bar,2.58,Falling,05:00 PM SUN 16/02/25
Coongan River at Marble Bar Rd Crossing,2.09,Steady,05:05 PM SUN 16/02/25
Shaw River at Marble Bar Road Crossing,1.96,Steady,05:05 PM SUN 16/02/25
De Grey River at Coolenar Pool,8.89,Falling,05:00 PM SUN 16/02/25
This advice is also available by dialling 1300 659 210. Warning, rainfall and river information are available at www.bom.gov.au/wa/flood. The latest weather forecast is available at www.bom.gov.au/wa/forecasts.
Forecast
Balla Balla (20.6949°S, 117.7876°E, 4m AMSL) set as my default location ›
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7 day forecast
Today: Mostly sunny. Slight chance of a shower in the NE, near zero chance elsewhere. The chance of a thunderstorm in the NE in the morning and afternoon. Light winds becoming NW/SW 15 to 25 km/h in the early afternoon then tending NW/NE in the evening. Overnight temperatures falling to between 18 and 24 with daytime temperatures reaching 32 to 40.
Forecast for Balla Balla (20.6949°S, 117.7876°E, 4m AMSL) Mon Tue Wed Thu Fri Sat Sun Summary Minimum 25° 25° 26° 26° 28° 28° 26° Maximum 36° 35° 36° 39° 41° 39° 36° Chance of rain 20% 20% 5% 30% 5% 40% 50% Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating Moderate No Rating No Rating No Rating - - - Frost risk Nil Nil Nil Nil Nil Nil Nil 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm Wind speed 10
(km/h)24
(km/h)7
(km/h)23
(km/h)10
(km/h)23
(km/h)13
(km/h)19
(km/h)13
(km/h)26
(km/h)15
(km/h)25
(km/h)14
(km/h)23
(km/h)Wind direction W N WNW NNE SW N SW N S NNE E NNE NNE NNE Relative humidity 65% 53% 65% 52% 64% 48% 53% 40% 44% 44% 59% 52% 69% 56% Dew point 24°C 24°C 23°C 22°C 24°C 22°C 22°C 22°C 21°C 25°C 27°C 25°C 26°C 24°C -
Sunrise and sunset times
Sunrise / Sunset for Balla Balla (20.6949°S, 117.7876°E, 4m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase Last quarter New moon First quarter Full moon 5:40am WST 6:03am WST 6:48pm WST 7:10pm WST 9:30pm WST 9:42am WST Waning gibbous
Last quarter Feb 21 New moon Feb 28 First quarter Mar 07 Full moon Mar 14 -
Warnings
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Temperature for next 7 days
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Rain for next 7 days