Damaging wind is spreading along the NSW coast this afternoon before heavy showers follow tomorrow morning. Winds have become damaging along the coast from the South Coast to the Illawarra as well as in the Snowy Mountains. Montague Island, off the NSW South Coast, experienced winds gusting to 98km/h at 2pm today while winds at Jervis Bay reached 87km/h around lunch time. On Sydney Harbour, winds have managed to reach 78km/h, but most places have stronger winds to come. A low pressure system off the NSW coast is deepening today as an associated trough moves north along the coast. South-to-southwesterly winds are increasing offshore, with the strongest winds expected for coastal locations during peak hour. This should make leaving work a treacherous journey for many people. A damaging wind warming stretches from the South Coast up to the Hunter. Wind gusts may reach around 100 km/h in this region, although the strongest winds are expected to affect the Illawarra. The trough will move through the South Coast this afternoon and reach the Hunter during the night bringing a south-to-southeasterly wind change and heavy showers. Winds will remain strong on Saturday, but will gradually ease through the day. Heavy showers are expected from the South Coast to the Hunter coastline with widespread falls of 20-40mm along the coastal fringe. Some locations will even see totals nearing 100mm. Inland areas, such as western Sydney, will see far less rainfall with only 5-10mm expected. Wind and rain will ease around the middle of the day on Saturday for the South Coast, in the afternoon for the Illawarra and Sydney and then during the night for the Hunter. By Sunday morning there should only be the odd light shower affecting the NSW coast with light to moderate winds. For those planning outdoor events on Sunday, they need not worry about the wet and windy weather, unless damp grounds are of concern.