'Could be fairly nasty': Is a hybrid low about to hit?
UPDATE, 1pm: WEATHER experts have acknowledged there is a "lot of uncertainty" about the weather event that will hit the Northern Rivers over the next few days.
Weatherwatch meteorologist Anthony Cornelius said the weather system had an "unusual pattern".
"I'm calling this a hybrid low - but there's a case to say that it's just an East Coast Low too," he posted on his Facebook page.
"But I feel there's some tropical characteristics to this hence calling it a hybrid.
"In a nutshell - yes there's the potential this system could be fairly nasty, but we'll have to wait and see where things settle (so don't panic yet)."
The Bureau of Meteorology says rainfall is increasing across the region.
"A deepening low pressure system is approaching the southeast Queensland and northeast New South Wales coasts," BoM explained on their Facebook page.
"This low may generate heavy rain, damaging winds and possible coastal erosion.
"Over the next four days, widespread 100-200mm of rain is forecast ... with isolated higher falls in excess of 300mm possible.
"Heavy falls will likely to lead to flash flooding in the coming days with riverine flooding also possible.
"Remember if it's flooded, forget it."
Original story: WARNINGS of a "significant" rain event on the Northern Rivers are already being realised, with good rainfall already recorded in some areas.
Lismore received 12mm of rain in the hour between 8am and 9am.
There are also reports of "torrential" rain in the Byron Shire, and the Cape Byron weather station has recorded 5mm of rain so far.
But that is just a taste of what's to come.
The NSW SES is advising residents on the Northern Rivers to prepare for heavy rainfall and possible flooding, with the Bureau of Meteorology forecasting widespread falls of 100-200mm.
Some towns could receive more than 300mm of rain, and flash flooding is possible.
The Bureau of Meteorology says the region could be lashed by storms this afternoon and into the evening, before "heavy" falls tomorrow, Sunday and Monday.
NSW SES Deputy Zone Commander Mark Somers said the rain event will be a "welcome relief to many", but has warned people to be prepared.
"NSW SES urges residents and visitors to take care when driving in wet weather on the local roads and especially if you are driving in upper catchment areas where low lying causeways overflow and are dangerous to cross when flooded," he said.
"It's important that drivers slow down as roads may have trees, branches and debris covering them."
The rain event is set to coincide with king tides, and could cause even more flooding in Ballina.
Ballina Shire Council is encouraging motorists to drive safely over the coming days with the tides and heavy rainfall leading to minor flooding of some local roads.
Roads likely to be affected by king tides and saltwater flooding include:
• Tamar Street, Ballina
• Riverside Drive, West Ballina
• River Street, West Ballina
• Burns Point Ferry Road, West Ballina
• North Creek Road, North Ballina
• Southern Cross Drive, North Ballina
• Uralba Road, Uralba
• Old Bangalow Road, Tintenbar
• Tamarind Dr, Cumbalum.