IDN11013
Australian Government Bureau of Meteorology
New South Wales
Issued at 4:05 pm EST on Tuesday 17 September 2019
for the period until midnight EST Saturday 21 September 2019.
Please be aware
Wind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height.
A cold front that move through most of New south Wales yesterday is continuing to linger as a low pressure trough in the states northeast this afternoon. A low pressure system is currently developing within this trough, offshore near to Port Stephens. This will reinforce a vigorous southerly flow along much of the coast during the next 24 hours, with likely gales about central parts of the coast. The low should weaken during Wednesday and Thursday as a high pressure system becomes dominant over the Tasman Sea, pushing a ridge into New South Wales, and bringing a gradual return to northeasterly winds. Another cold front looks set to arrive on the weekend.
Winds: Southeasterly 25 to 30 knots tending southerly 20 to 25 knots in the late evening. Seas: Below 1 metre. Weather: Cloudy. Near 100% chance of rain. Rain heavy at times early this evening.
Winds: Southerly 20 to 25 knots increasing to 30 knots before turning east to southeasterly 15 to 25 knots in the middle of the day. Seas: Below 1 metre. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm in the afternoon and evening.
Winds: Easterly 10 to 15 knots tending northeasterly 15 to 20 knots in the morning. Seas: Below 0.5 metres. Weather: Cloudy. 80% chance of showers. The chance of a thunderstorm in the late morning and afternoon.
Winds: Northeasterly about 10 knots increasing to 15 to 20 knots during the afternoon. Seas: Below 0.5 metres. Weather: Partly cloudy.
Winds: North to northeasterly 10 to 15 knots becoming north to northwesterly below 10 knots during the evening. Seas: Below 0.5 metres. Weather: Partly cloudy.
The next routine forecast will be issued at 4:05 am EST Wednesday.
* Calls to 1300 number cost around 27.5c inc. GST, higher from mobiles or public phones. Marine forecasts are also available on VHF and HF radio. View the radio schedule on www.bom.gov.au/marine
Check the latest Coastal Waters Forecast or Local Waters Forecast at http://www.bom.gov.au/nsw/forecasts/map.shtml for information on wind, wave and weather conditions for these coastal zones.