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Cyclone Bobby
Severe Tropical Cyclone Bobby set numerous monthly rainfall records in parts of the Goldfields-Esperance regions of Western Australia, dropping up to of rain in February 1995. The fourth named storm of the 1994–95 Australian region cyclone season, Bobby developed as a tropical low embedded within a monsoon trough situated north of the Northern Territory coastline on 19 February. The storm gradually drifted southwestward and later southward under low wind shear, strengthening enough to be assigned the name ''Bobby'' by the Australian Bureau of Meteorology (BoM). The storm rapidly deepened as it approached the coast of Western Australia, and attained its peak intensity of 925 mbar (hPa; 27.32 inHg) at 0900 UTC on 24 February with 10-minute maximum sustained winds of 195 km/h (120 mph). After making landfall as a somewhat weaker cyclone near Onslow, the remnants of Bobby drifted southeastward, gradually weakening, before dissipating over the southern reaches of Western Australia.
Bobby inflicted minor damage throughout Western Australia, dropping copious rainfall and forcing the closure of many facilities and roads. The storm's destruction was most severe in Onslow, where 20 residences suffered damage. Elsewhere, Bobby knocked out power and water supplies, unroofed houses, tore off rain gutters, toppled fences, and smashed windows. The flooding of a stretch of the Eyre Highway stranded approximately 1000 vehicles, although the backup was later cleared more than a week later. Flooding disrupted mining and drilling operations throughout southwestern Australia, costing the industry upwards of $50 million (1995 AUD; $38.7 million USD). Numerous Australian Army and State Emergency Service (SES) personnel were involved in cleanup and recovery efforts after the cyclone's passage, while power and water service was restored to those cut off during the storm. Overall, the cyclone caused eight deaths and $11 million (1995 AUD; $8.5 million USD) in damage along its course across Western Australia.
== Meteorological history ==
The origins of Cyclone Bobby can be traced to a tropical low that formed within a monsoon trough off of the Northern Territory's shores on 19 February 1995. Further organization was initially hindered by strong easterly wind shear as it drifted toward the west-southwest along the northern fringes of a mid-level zonal ridge. The latitudinal ridge was perturbed by a broad frontal system from 21 to 22 February, reducing wind shear around the low and producing favorable conditions for development. Swift tropical cyclogenesis followed as the convection – thunderstorms – strengthened around the system's surface circulation, and the storm was assigned the name ''Bobby'' by the Australian Bureau of Meteorology (BoM) during the early morning hours of 22 February while stationed approximately north of Port Hedland, making it the fourth named storm of the Australian region cyclone season. Bobby continued to strengthen over the following days while meandering south-southwestward toward the mid-level ridge, and attained Category 1-equivalent intensity on the Saffir–Simpson hurricane wind scale at 0000 UTC on 23 February, with 1-minute maximum sustained winds of 120 km/h (75 mph), according to the Joint Typhoon Warning Center (JTWC).
Bobby slowed slightly and moved erratically as it neared the Western Australian coastline, turning southward while rapidly strengthening.〔 It attained its peak intensity of 925 mbar (hPa; 27.32 inHg) at 0900 UTC on 24 February,〔 producing 1-minute sustained winds upwards of 205 km/h (125 mph) and 10-minute winds of 195 km/h (120 mph),〔 equivalent to a Category 3 hurricane on the Saffir–Simpson scale or a Category 4 cyclone on the Australian scale.〔 Hurricane-force winds' radius around the cyclone's center decreased from to less than ; however, gale-force winds continued to reach as far as outward from the center, consistent with satellite imagery.〔 The cyclone continued to trek southward under the influence of a northeast-moving frontal system, and made landfall near Onslow at 1800 UTC on 25 February with a minimum atmospheric pressure of 952 mbar (hPa; 28.11 inHg). Bobby persisted for another two days, travelling southward for 24 hours before curving to the southeast and dissipating over southwestern Australia.〔
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