Hunter region included in Bureau of Meteorology severe weather warning as Wollombi Brook records major flood levels at Bulga.
Major flooding is occurring along the Wollombi Brook at Bulga and moderate flooding is likely along the Wollombi Brook at Wollombi from overnight Monday into Tuesday.
The Wollombi Brook at Bulga is expected to reach around 6.00 metres Monday evening with major flooding. The river level may reach around 6.50 metres Tuesday morning, with further rises possible.
Minor flooding may occur in the Lower Hunter from Tuesday morning.
Further rainfall is predicted over the remainder of Monday and Tuesday, which may cause further river rises throughout the Hunter Valley.
The BOM says a strong high pressure system over the southern Tasman Sea continues to drive widespread and persistent rain onto the NSW coast. This is expected to continue today, particularly about the Mid North Coast and Northern Rivers.
Meanwhile, a low pressure trough in the state's west is deepening, bringing rain areas to the northern inland today. In this area, heavy rain is possible from the morning, becoming more likely in the afternoon and evening, extending to areas of the southeast over Tuesday.
On Tuesday, as the trough reaches the Tasman Sea, a low pressure system may form, bringing increased rainfall, strong winds, damaging surf and abnormally high tides to the east and south.
Most areas of NSW will see a clearing trend early Wednesday as a drier airmass moves into the region.
HEAVY RAIN, likely leading to FLASH FLOODING, presents a SERIOUS RISK to the Northern Rivers and Mid North Coast today and on Tuesday. Some risk remains for the Hunter and Central Tablelands districts during this period, particularly given the saturated nature of catchments. Due to extensive flooding across the east, localised moderate rainfall may also bring the risk of FLASH FLOODING. In some areas, heavy rain and flooding may be LIFE-THREATENING.
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