A severe weather warning has been issued for the South Coast with thunderstorms, damaging winds, large or possibly giant hailstones and heavy rainfall forecast for the region on Monday afternoon.
A low pressure system over inland NSW is drawing humid air across eastern parts of the state causing widespread thunderstorm activity, the bureau of meteorology said.
The system is expected to gradually move to the Tasman Sea on Monday afternoon and evening.
Wollongong, Nowra, Batemans Bay, Newcastle and Sydney are within the bureau's warning area.
⚡⚡ Severe #Thunderstorm Warning for Damaging Winds, Large Hailstones & Heavy Rainfall for large parts of Southern, South Eastern and Eastern #NSW. For latest warnings visit: https://t.co/bKgH3U9x5k#NSWSES#NSWRFSpic.twitter.com/BVCvcdD81m— Bureau of Meteorology, New South Wales (@BOM_NSW) January 20, 2020
The bureau said heavy rainfall may lead to flash flooding in the warning areas.
Nowra is expected to reach a top of 28 on Monday, 24 in Ulladulla and for Batemans Bay and Bega it's predicted to reach 26.
On Tuesday, temperatures are expected to remain similar to Monday with possible showers in Batemans Bay and Bega.
The SES advises:
- 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.