NSW SES volunteers have responded to over 400 Requests For Assistance (RFA)s this afternoon as severe weather and thunderstorms impact the state.

Most of these requests have been for trees which have come down, are threatening to come down or have dropped branches causing damage or blocking access.

The Bureau of Meteorology has a Severe Weather Warning and a Severe Thunderstorm Warning current.

Areas of concern for the NSW SES include the Blue Mountains, Sydney Metropolitan, Illawarra and Hunter with calls for assistance increasing from these areas.

The NSW SES advise people:

• Never enter or travel through floodwater, including flash floodwater
• Stay indoors, clear of windows
• Stay clear of creeks, drains, causeways, gutters, streams, fallen trees, power lines and damaged buildings
• If driving, put your hazard lights on and pull over to the side of the road keeping clear of drains, causeways, streams, creeks, trees and power lines
• If outdoors, seek secure shelter away from drains, causeways, streams, creeks, trees and power lines
• Listen to your local radio station and other media for information, updates and advice

For emergency help in storms, call the SES on 132 500.For life-threatening emergencies, call 000 (triple zero).

More storm information and advice from the NSW SES is available on our StormSafe pages