Parts of the Gold and Tweed coasts have seen their heaviest June rain in years, as a low pressure trough deepens offshore, threatening to bring more driving rain. A low pressure trough fed by onshore winds caused showers to develop on Thursday, with widespread falls of 50-100mm on the Gold and Tweed coasts. In the 24 hours to 9am on Friday, 78mm was recorded at Coolangatta Airport, their heaviest June rainfall in eight years. Up at the Seaway 56mm fell, nearly 50% of the normal monthly total. Meanwhile, Miami had 71mm, Mudgeeraba saw 51mm and Burleigh copped 63mm. Just across the border, Tweed Heads picked up 66mm, with 52mm at Murwillumbah and 86mm at Tumbulgum. With the trough expected to linger off the coast and deepen into a low pressure system over the weekend, the soaking is set to continue. The amount of rain depends on where the low forms. If the low forms to the north of the region, there is potential for totals in the hundreds by the middle of next week. The low would also bring gusty winds and dangerous surf conditions, which would be bad news for the Goldy's already depleted beaches. If the low forms further to the south, the region can still expect a few showers each day but would be spared the wildest weather.