Big wet set to linger, as BOM predicts above-average rainfall for spring
This comes on the back of a very wet autumn and winter, with the result that some parts of the Mid North Coast and Hunter Valley, had reached their average yearly rainfall totals by the end of July, if not earlier.
The Bureau of Meteorology (BOM) is also predicting warmer-than-average nights cross Australia, with an increased chance of unusually high overnight temperatures for northern, eastern and central Australia.
One of the climate influences that may result in increased rainfall this spring is the Indian Ocean Dipole (IOD), which is currently neutral. However, the last three weeks of the IOD index have been below the negative IOD threshold.
A negative IOD is associated with wetter conditions in Eastern Australia. According to the BOM this is because Indian Ocean sea surface temperatures impact rainfall and temperature patterns over Australia. Warmer than average sea surface temperatures can provide more moisture for frontal systems and lows crossing Australia.
The latest IOD index value for the week ending 10 August is 0.84 °C. Sustained index values less than or equal to 0.4 °C for at least eight weeks are typical of a negative IOD event.
Development of a negative IOD is increasingly likely. All international models, including the Bureau's model, predict a negative phase of the IOD during spring, with a return to neutral in early summer, consistent with the typical IOD life cycle.
August is usually a dry, cold and windy month, but this year it's been wet. So far Kempsey has recorded 100mm, Dorrigo 135mm, Wingham 142mm and Bulahdelah 160mm. In the Barrington Tops, Careys Peak topped with 338 and Moppy with 224. In Maitland 125mm was recorded and 144mm in Branxton and 132mm in Dungog.
In the Upper Hunter so far this month Muswellbrook has recorded 79mm, Scone 64mm, Timor 51mm and Merriwa 21mm.
Don't pack those gumboots and raincoats away just yet, as the spring rainfall forecast is for above-average rainfall for most of eastern Australia.
This comes on the back of a very wet autumn and winter, with the result that some parts of the Mid North Coast and Hunter Valley, had reached their average yearly rainfall totals by the end of July, if not earlier.
The Bureau of Meteorology (BOM) is also predicting warmer-than-average nights cross Australia, with an increased chance of unusually high overnight temperatures for northern, eastern and central Australia.
One of the climate influences that may result in increased rainfall this spring is the Indian Ocean Dipole (IOD), which is currently neutral. However, the last three weeks of the IOD index have been below the negative IOD threshold.
A negative IOD is associated with wetter conditions in Eastern Australia. According to the BOM this is because Indian Ocean sea surface temperatures impact rainfall and temperature patterns over Australia. Warmer than average sea surface temperatures can provide more moisture for frontal systems and lows crossing Australia.
The latest IOD index value for the week ending 10 August is 0.84 °C. Sustained index values less than or equal to 0.4 °C for at least eight weeks are typical of a negative IOD event.
Development of a negative IOD is increasingly likely. All international models, including the Bureau's model, predict a negative phase of the IOD during spring, with a return to neutral in early summer, consistent with the typical IOD life cycle.
August is usually a dry, cold and windy month, but this year it's been wet. So far Kempsey has recorded 100mm, Dorrigo 135mm, Wingham 142mm and Bulahdelah 160mm. In the Barrington Tops, Careys Peak topped with 338 and Moppy with 224. In Maitland 125mm was recorded and 144mm in Branxton and 132mm in Dungog.
In the Upper Hunter so far this month Muswellbrook has recorded 79mm, Scone 64mm, Timor 51mm and Merriwa 21mm.
Don't pack those gumboots and raincoats away just yet, as the spring rainfall forecast is for above-average rainfall for most of eastern Australia.
This comes on the back of a very wet autumn and winter, with the result that some parts of the Mid North Coast and Hunter Valley, had reached their average yearly rainfall totals by the end of July, if not earlier.
The Bureau of Meteorology (BOM) is also predicting warmer-than-average nights cross Australia, with an increased chance of unusually high overnight temperatures for northern, eastern and central Australia.
One of the climate influences that may result in increased rainfall this spring is the Indian Ocean Dipole (IOD), which is currently neutral. However, the last three weeks of the IOD index have been below the negative IOD threshold.
A negative IOD is associated with wetter conditions in Eastern Australia. According to the BOM this is because Indian Ocean sea surface temperatures impact rainfall and temperature patterns over Australia. Warmer than average sea surface temperatures can provide more moisture for frontal systems and lows crossing Australia.
The latest IOD index value for the week ending 10 August is 0.84 °C. Sustained index values less than or equal to 0.4 °C for at least eight weeks are typical of a negative IOD event.
Development of a negative IOD is increasingly likely. All international models, including the Bureau's model, predict a negative phase of the IOD during spring, with a return to neutral in early summer, consistent with the typical IOD life cycle.
August is usually a dry, cold and windy month, but this year it's been wet. So far Kempsey has recorded 100mm, Dorrigo 135mm, Wingham 142mm and Bulahdelah 160mm. In the Barrington Tops, Careys Peak topped with 338 and Moppy with 224. In Maitland 125mm was recorded and 144mm in Branxton and 132mm in Dungog.
In the Upper Hunter so far this month Muswellbrook has recorded 79mm, Scone 64mm, Timor 51mm and Merriwa 21mm.
Don't pack those gumboots and raincoats away just yet, as the spring rainfall forecast is for above-average rainfall for most of eastern Australia.
This comes on the back of a very wet autumn and winter, with the result that some parts of the Mid North Coast and Hunter Valley, had reached their average yearly rainfall totals by the end of July, if not earlier.
The Bureau of Meteorology (BOM) is also predicting warmer-than-average nights cross Australia, with an increased chance of unusually high overnight temperatures for northern, eastern and central Australia.
One of the climate influences that may result in increased rainfall this spring is the Indian Ocean Dipole (IOD), which is currently neutral. However, the last three weeks of the IOD index have been below the negative IOD threshold.
A negative IOD is associated with wetter conditions in Eastern Australia. According to the BOM this is because Indian Ocean sea surface temperatures impact rainfall and temperature patterns over Australia. Warmer than average sea surface temperatures can provide more moisture for frontal systems and lows crossing Australia.
The latest IOD index value for the week ending 10 August is 0.84 °C. Sustained index values less than or equal to 0.4 °C for at least eight weeks are typical of a negative IOD event.
Development of a negative IOD is increasingly likely. All international models, including the Bureau's model, predict a negative phase of the IOD during spring, with a return to neutral in early summer, consistent with the typical IOD life cycle.
August is usually a dry, cold and windy month, but this year it's been wet. So far Kempsey has recorded 100mm, Dorrigo 135mm, Wingham 142mm and Bulahdelah 160mm. In the Barrington Tops, Careys Peak topped with 338 and Moppy with 224. In Maitland 125mm was recorded and 144mm in Branxton and 132mm in Dungog.
In the Upper Hunter so far this month Muswellbrook has recorded 79mm, Scone 64mm, Timor 51mm and Merriwa 21mm.
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