There was a wide range of 24-hour rainfall totals across the Northern Rivers overnight.
There was a wide range of 24-hour rainfall totals across the Northern Rivers overnight.

How much rain was that, and what’s yet to come?

UPDATE: 5.15pm
 

The Bureau of Meteorology has issued a severe thunderstorm warning for parts of northern NSW. 

The area forecast to be affected includes Tabulam, Grafton, Coutts Crossing, Nymboida, Dorrigo and Ebor.

The storm is likely to produce large hailstones, heavy rainfall that may lead to flash flooding and damaging winds in the warning area over the next several hours. 

The weather bureau has issued a severe storm warning for parts of Northern NSW.
The weather bureau has issued a severe storm warning for parts of Northern NSW.

The State Emergency Service advises that people should:

  • Move your car under cover or away from trees.
  • Secure or put away loose items around your house, yard and balcony.
  • Keep at least 8 metres away from fallen power lines or objects that may be energised, such as fences.
  • Report fallen power lines to either Ausgrid (131 388), Endeavour Energy (131 003), Essential Energy (132 080) or Evoenergy (131 093) as shown on your power bill.
  • Keep clear of creeks and storm drains.
  • Don't walk, ride your bike or drive through flood water.
  • If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
  • Unplug computers and appliances.
  • Avoid using the phone during the storm.
  • Stay indoors away from windows, and keep children and pets indoors as well.
  • For emergency help in floods and storms, ring the SES (NSW and ACT) on 132 500.

The bureau is expected to issue its next warning by 7.25pm. 

Visit www.bom.gov.au or call 1300 659 210 for weather warning updates. 

Original story:

PARTS of the Northern Rivers were lashed by severe storm conditions overnight, with the conditions bringing reasonable rainfalls in some parts, but little or no rain in others.

Rainfall totals for the 24 hours to 9am today varied from 47mm at Lillian Rock to just 1mm at Cape Byron, according to the Bureau of Meteorology.

Meteorologist Helen Kirkup said the conditions were "very hit and miss".

"That's why you might get 47mm and 30km down the road you might get zero," Ms Kirkup said.

"There were a number of places that got very high falls yesterday.

"There were some reports of large hail."

It's a similar outlook today: severe storms are possible, and will likely bring a mixed bag of rainfall which will likely be as scattered as yesterday, further hail and unpredictable wind gusts.

The Bureau of Meteorology has warned of more severe storm activity on the Northern Rivers today.
The Bureau of Meteorology has warned of more severe storm activity on the Northern Rivers today.

Some showers are also forecast for tomorrow, with severe storms not likely, but possible, Ms Kirkup said.

From the weekend, the Northern Rivers and the rest of the state will be hit by a heatwave that's forecast to last well into next week.

Ms Kirkup said Monday was currently expected to be the hottest day for Lismore, with a high of 36C.

The weather bureau has recorded the following rainfall totals for the 24 hours to 9am today:

  • Lillian Rock: 47mm
  • Wylie Creek: 36mm
  • Green Pidgeon: 32mm
  • Wallangarra: 30mm
  • Loadstone: 30mm
  • Bentley: 29mm
  • Kunghur: 27mm
  • Cawongla: 28mm
  • Jiggi: 23mm
  • Busbys Flat: 17mm
  • Tabulam: 12mm
  • Nimbin: 12mm
  • Drake: 11mm
  • Whiporie: 11mm
  • Casino: 12mm
  • Rock Valley: 10mm
  • Terania Creek: 6mm
  • Lismore (Dawson St): 5mm
  • Tuncester: 5mm
  • Lismore Airport: 4.6mm
  • Upper Main Arm: 4mm
  • Dunoon: 4mm
  • Yelgun: 2.5mm
  • Mullumbimby: 2.2mm
  • Tuckombil: 2mm
  • Alstonville: 1.8mm
  • Ballina: 1.2mm
  • Cape Byron: 1mm

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