Severe weather warning for Valley
UPDATE: 3.40pm: HEAVY rain is likely to continue into the afternoon as a severe weather warning remains for the Clarence Valley.
Weatherzone meteorologist Kim Westcott said not to be fooled if it eases off in the next little while; it will be back for more.
"This isn't the last of it," she said.
"It's moving pretty quickly and a few cells are merging together to form one big one, but there are a few cells forming behind it, so it will be like a wave, then ease off, then will hit again."
Temperatures plummeted 10 degrees in just half an hour between 2.30-3pm today, including 3.4 degrees in just five minutes.
It follows a heavy downpour last night where Grafton airport copped a drenching with 10mm in 10 minutes just after 9.30pm.
Looking ahead into tomorrow, the Clarence Valley is likely to see another wet afternoon, but less aggressive than today.
Severe thunderstorms are likely to produce damaging winds, heavy rainfall that may lead to flash flooding and large hailstones in the warning area over the next several hours. Locations which may be affected include Grafton, Tenterfield, Yamba, Maclean, Woolgoolga and Dorrigo.
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 clear of fallen power lines.
* 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 next warning is due to be issued by 5:25 pm.
Warnings are also available through TV and Radio broadcasts, the Bureau's website at www.bom.gov.au or call 1300 659 218. The Bureau and State Emergency Service would appreciate warnings being broadcast regularly.
A SEVERE thunderstorm warning has been issued for the Clarence Valley with damaging winds, heavy rain and large hailstones.
North Coast Storm Chasers reports: Severe thunderstorms are likely to produce damaging winds, heavy rainfall that may lead to flash flooding and large hailstones in the warning area over the next several hours. Locations which may be affected include Grafton, Tenterfield, Yamba, Maclean, Woolgoolga and Dorrigo.
More to come.