Western Australian locations have finally felt the impacts of Severe Tropical Cyclone Olwyn, bringing some of the heaviest March rain since the nineties and the strongest winds in more than a decade. As the system passed over Northwest Cape this morning, Learmonth collected the heaviest 24 hour total in March since 1999 with 142 millimetres collecting in the bucket. Just offshore, Barrow Island also received a deluge with a total of 101 millimetres to 9am today, the heaviest for any month since February 2011. Learmonth Airport also managed to clock the strongest wind gusts in more than 12 years with the anemometer spinning up to 180 km/h. Both Barrow Island and Thevenard Island saw maximum wind gusts up to 128 km/h while Onslow Airport recorded gusts 119 km/h. This system will continue on its southerly path sitting just over land as it tracks past Carnarvon and Denham this afternoon. There is good confidence that Olwyn will remain over land throughout the night and weaken as the fuel source of the warm Indian Ocean sits out of reach. The remnants of Olwyn are then expected to be distributed over southern parts of Western Australia delivering heavy rainfall and thunderstorms. Following the remnants of Lam earlier this month, the monthly totals are already well above average with Leonora Ap sitting at 1706% of its long term March average. Similarly Learmonth has seen 635%, Mullewa has seen 484% and Paraburdoo Ap has seen 419% and we're not even half way through the month.