The GPM core observatory satellite again passed over the center of tropical cyclone IRIS on April 6, 2018 at 0027 UTC (10:27 AM AEST). The location of IRIS' low level center of circulation is shown here with a red tropical storm symbol. Data collected by GPM's Microwave Imager (GMI) revealed that heavy convective rainfall was sheared to the southeast of IRIS' surface center of circulation. Those GMI data showed that precipitation in that area of strong convection was falling at a rate greater than 59 mm (2.3 inches) per hour while data received by GPM's Dual Frequency Precipitation Radar (DPR)
IRIS has taken a long, fluctuating and serpentine trek since the tropical cyclone formed in the Coral Sea northeast of Australia on March 24. For a while IRIS weakened and was downgraded to a tropical low. The tropical low moved toward the northeastern coast of Australia and was upgraded again to tropical cyclone IRIS on April 2. The tropical cyclone has then moved generally southeastward parallel to the Australian coast. This analysis from data collected by Microwave Imager (GMI) and Dual Frequency Precipitation Radar (DPR) instruments shows that extremely heavy rain was falling west of IRIS'
Tropical Cyclone NORA produced heavy rainfall when it came ashore in northwestern Queensland on March 24, 2018 (GMT). NORA's peak intensity of 95 kts (109 mph) was reached when the tropical cyclone was located in the central northern Gulf Of Carpentaria. Winds had decreased slightly to 90 kts (104 mph) by landfall. The Australian Bureau of Meteorology (BOM) reported that NORA produced over 110 mm (4.3 inches) of rain in 24 hours. Flooding, landslides, lost electrical power, and structural damage were also a companion of the tropical cyclone's arrival. After landfall NORA weakened but the
Tropical Cyclone Kelvin struck Northwestern Australia with winds reaching 54 knots as it crossed the Kimberley Coast. It brought flooding rains and damaging winds to the settlements and mining companies of the region. The storm intrigued meteorologists as it only developed a cloudless eye after making landfall, believed in part due to the heat flux generated by the warm desert the storm traveled over. View this visualization in full screen using STORM Event Viewer
Tropical cyclone Irving formed in the South Indian Ocean on January 6, 2018. Irving posed no threat to land because it orgininated over the open ocean far to the west of Australia. GPM's core observatory satellite had an excellent view of Irving's eye on January 2018 at 0706Z. The well defined rainfall patterns within Irving were clearly shown by GPM's Microwave Imager (GMI) and Dual Frequency Precipitation Radar (DPR) data. Very heavy rainfall was shown in the western side of Irving's large eye wall. GPM's Radar (DPR Ku Band) found rain in that side of the tropical cyclone falling at a rate
Tropical cyclone HILDA formed very close to Australia's northwestern coast on December 27, 2017 at 1800 UTC and dissipated quickly as it crossed over land. The GPM core observatory satellite had a good view of the short lived tropical cyclone on December 27, 2017 at 2031 UTC. A red tropical storm symbol shows HILDA's approximate location when GPM passed above. The center of GPM's coverage was mainly east of HILDA's center of circulation. The intensity of rainfall in a large intense band of storms wrapping around the northeastern side of the tropical cyclone was measured by the satellite's
On December 26, 2017 at 0806 UTC The GPM core observatory satellite satellite flew above northwestern Australia. GPM traveled over an area of convective thunderstorms in the Indian Ocean north of Australia's coast where a tropical cyclone is expected to develop. GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments collected data that showed heavy precipitation in storms off the Australian coast. GPM's radar (DPR Ku Band) showed that a few extremely powerful convective storms northwest of the Dampier Land coast were dropping precipitation at a rate of greater
Over the past week extreme rainfall has drenched northeastern Australia. This is the heaviest rainfall in that area since tropical cyclone Debbie hit Queensland Australia in late March. Much of the recent extremely heavy rainfall was due to storms associated with a trough of low pressure slowly moving over northeastern Queensland from the Coral Sea. More than 100mm (3.9 inches) of rain in 24 hours was reported near Townsville in northern Queensland. A trough of low pressure moving eastward from central Australia has also been encroaching into western Queensland. This analysis of rainfall over