UTC – TCWC Brisbane downgrades Severe Tropical Cyclone Ului to a Category 3 cyclone. 19 March 0000 UTC – TCWC Brisbane downgrades Severe Tropical Cyclone Ului to a Category 2 cyclone. 20 March 0600 UTC – TCWC Brisbane upgrades Tropical Cyclone Ului to a Category 3 severe cyclone. 1530 UTC – Severe Tropical Cyclone Ului makes landfall near Airlie Beach, Queensland 1800 UTC – TCWC Brisbane downgrades Severe Tropical Cyclone Ului to a Category 2 cyclone. 28 March 0130 UTC – TCWC Darwin upgrades the Tropical Low in the Arafura Sea to Category 1 Tropical Cyclone. 29 March 0100 UTC – TCWC Darwin upgrades Tropical Cyclone Paul to a Category 2 cyclone. 1200 UTC – Tropical Cyclone Paul makes landfall south of Cape Shield in north-east Arnhem Land. 30 March 0130 UTC – TCWC Darwin downgrades Tropical Cyclone Paul to a Category 1 cyclone. April 2 April 0600 UTC – TCWC Perth reports that Tropical Low 12U has formed west of Cocos Island. 3 April 0000 UTC – TCWC Perth upgrades Tropical Low 12U to Category 1 Tropical Cyclone Robyn. 4 April 0600 UTC – TCWC Perth upgrades Tropical Cyclone Robyn to a Category 2 cyclone. 5 April 0000 UTC – TCWC Perth upgrades Robyn to a Category 3 Severe Tropical Cyclone. 0600 UTC – TCWC Perth downgrades Severe Tropical Cyclone Robyn to a Category 2 cyclone. 6 April 0000 UTC – TCWC Perth downgrades Tropical Cyclone Robyn to a Category 1 cyclone. 0600 UTC – TCWC Perth downgrades Tropical Cyclone Robyn to a Tropical low. 7 April 0600 UTC – ex-Tropical Cyclone Robyn leaves the Australian zone of responsibility as a Tropical low. 21 April 1200 UTC – TCWC Perth reports that Tropical Low 13U has formed, about 130 nm south of Bali See also 2009–10 Australian region cyclone season Timeline of the 2009 Atlantic hurricane season Timeline of the 2009 Pacific hurricane season Timeline of the 2009 Pacific typhoon season Timeline of the 2009 North Indian Ocean cyclone season Timeline of the 2009–10 South-West Indian Ocean cyclone season Timeline of the 2009–10 South Pacific cyclone season References External links World Meteorological Organization Australian Bureau of Meteorology Tropical Cyclone Warning Center Jakarta. Joint Typhoon Warning Center . 2009–10 Australian region cyclone season Articles which contain graphical timelines 2009 Aus T 2010 Aus T