Tropical Cyclone Larry

It was Thursday 16th March when Cyclone Larry started to develop a low pressure system over the Coral Sea in Queensland, this became noticeable that day. Then it slowly developed into a tropical cyclone during the very early hours of Saturday 18th March, and kept going on in a general westerly direction towards the Queensland Coast. Later that morning a number of meteorologists classified it as a server category 3 cyclone and continued until it reached a category 5 cyclone as it approached the coast of Queensland.
On Monday 20th March, 2006, tropical cyclone Larry crossed the North Queensland coast. Luckily, no lives were lost, however serious injuries were reported. There was damage to infrastructure(roads and streets) and crops which coast half a billion dollars to repair.
Winds were later estimated to have been up to 240km/h (Category 4) in an area surveyed. This evidence was shown by varying levels of damage across a small distance.
Larry began to deteriorate as he moved on into the Atherton Tablelands but did uphold cyclone strength in early hours of Thursday 21 March. Larry was a small cyclone with extremely destructive winds occurring over a limited distance from its centre
Within 48 hours, teams from Geoscience Australia were on the ground to begin a program of testing building and crop damage. This continued over 3 weeks. At landfall, the eye of Tropical Cyclone Larry extended about 20 to 25 kilometres from Mirriwinni, north to Mourilyan Harbour in the south. A vessel sheltering in the South Johnstone River to the east of Innisfail recorded winds gusting to 225 km/h while gusts as high as 294 km/h were recorded near the peaks of the Bellenden Ker mountain and 187 km/h at the Ravenshoe wind farm as the weakening cyclone moved inland.
Electricity transmission was cut to the north and south-west of Innisfail. Severe damage to pole-mounted electrical distribution and communications networks was spread everywhere.It was horrible. Power disturbance affected other essential utilities such as the hospital, water supplies and water treatment works which needed emergency generators! Road and rail access to the district was disrupted for several days by flooding. In addition to engineering considerations, the impact of local winds on structures was significantly influenced by terrain from geographers, structure height, shielding by upwind structures, and topographical factors. Topographical acceleration of local winds were very significant factor?severe damage and was often confined to exposed ridge tops.

Severe winds caused by Tropical Cyclone Larry resulted in significant damage to buildings. All townships in the Innisfail region were severely affected. Thankfully it passed and left these towns to rebuild from scratch.

Damage Index (physical)
Damage Index (cost) %
1 Negligible 0
2 Missile to cladding/window 20
3 Loss of half roof sheeting 50
4 Loss of all roofing 70
5 Loss of roof structure 90
6 Loss of half of outer walls 100
7 Loss of all walls 100
8 Loss of half floor 100
9 Loss of all floor 100
10 Collapse of floor supporting piers 100