Cairns Cyclone 1927 - Harden Up - Protecting ??2011-10-19Microsoft Word - Cairns_Cyclone_1927.docx...

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Transcript of Cairns Cyclone 1927 - Harden Up - Protecting ??2011-10-19Microsoft Word - Cairns_Cyclone_1927.docx...

  • CASE STUDY: Cairns Cyclone, 9th February 1927 By Mr Jeff Callaghan Retired Senior Severe Weather Forecaster, Bureau of Meteorology, Brisbane A severe tropical cyclone rossed the coast just to the north of Cairns. The lowest pressure reading at Cairns was 971 hPa. Many buildings were unroofed or damaged and some 16 totally destroyed. There was considerable damage done to the hotel and houses at Malanda. The sea wall at Cairns was broken in several places. The cyclone turned into a disastrous rain depression. Unprecedented floods occurred in North Coast Rivers. Halifax, Ingham, Innisfail and Tully were partly submerged. There were many drownings, 23 at Ingham, 15 at Cardwell and 1 at Townsville. 2,500 cattle and 1,500 horses were drowned at Ingham. Losses to crops stock and property in the Herbert reached 300,000 pounds (1927). There was rail damage with washaways and many bridges carried away. There was also flooding in south of state, with Surat under water and a drowning fatality at Toowoomba. Seven persons were also drowned near Miles and crops in West Moreton badly damaged. A large dam at Koorboora was wrecked. A total of 47 people lost their lives. The peak flood at the Ingham pump station of 14.17metres was at 12 noon 10 February 1927. Below are charts analysed from observational data held in National Archives. Additional data from Archives and Cairns Post article:- Cairns at 9am 9/2/27 bar was 29.66 inches or 1004.4hPa , At noon 9/2/27 bar was 29.44 inches or 997.0hPa , At 3pm 9/2/27 bar was 29.28 inches or 991.5hPa with strong gale SSW 44 knots. At 8pm 9/2/27 bar was 28.98 inches or 981.4hPa wind 51 knots gusting to 59 knots, At 9pm 9/2/27 bar was 28.88 inches or 978.0hPa and at 9.30pm was 28.74inches or 973.2hPa with violent hurricane force winds. At 1046pm 28.79inches or 974.9hPa At 1056pm 28.71inches 972.2hPa still with hurricane force winds. Lowest bar at Cairns was 28.67 inches or 970.9hPa at 11pm 9/2/27. Rapid rise in bar by 11.35pm to 28.92 or 979.3hPa. By then the worst of the wind was over.

  • Cairns Cyclone, 9th February 1927 Data by J. Callaghan 22 September 2011

  • Cairns Cyclone, 9th February 1927 Data by J. Callaghan 22 September 2011

    Six day 24hour rainfall totals (mm) from 24h to 9am 9 Feb to 24h to 9am 14 Feb 1927. 610mm fell at Bayan near Tully in the 24 hours to 9am 12 February and 606mm over the same period at Tully which still stands today as an all time daily rainfall record.

    145.0 147.0

    29 189 39 77 359 66 25 277 0 137 0 227

    10 161 2 11 120 235

    73 171 53 44 379 128

    81 305 36 20 83 30

    83 271 200 81 369 83 68 356 110 49 434 34

    78 265 239 116 0 386

    2 241 141 243 31 9

    11 282 281 267 56 28

    54 200 141 257 259 30

    214 306 256 55 19 7 Ingham

    Cairns

    45 382 339 606 94 8 Tully

    432 201 254 41 5 1

    65 356 215 610 89 8 34 214 242 401 55 0

    23 228 358 312 89 6

    2 156 82 32 0 0

    0 156 219 30 2 11 Townsville

    Innisfail

    4 254 400 268 62 30 12 273 273 60 18 2

    15 316 331 283 234 11

    11 256 305 195 42 20

    10 193 277 261 53 53

    76 376 46 26 58 3

    4 1 79 12 29 42 15

  • Cairns Cyclone, 9th February 1927 Data by J. Callaghan 22 September 2011

  • Cairns Cyclone, 9th February 1927 Data by J. Callaghan 22 September 2011

  • Cairns Cyclone, 9th February 1927 Data by J. Callaghan 22 September 2011

  • Cairns Cyclone, 9th February 1927 Data by J. Callaghan 22 September 2011

  • Cairns Cyclone, 9th February 1927 Data by J. Callaghan 22 September 2011