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TCWCs
BrisbaneDarwinPerth
Activity Report
Bureau of Meteorology
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Cyclone Categories
Cat 1 - Wind Gusts 90-125 km/h - MINIMAL damage
Cat 2 - Gusts 125-170 km/h - MODERATE damage
Cat 3 - Gusts 170-225 km/h - MAJOR damage
Cat 4 - Gusts 225-280 km/h - DEVASTATING
Cat 5 - Gusts 280+ km/h - EXTREME event
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0
2
4
6
8
10
12
1418
86-1
890
1891
-189
5
1896
-190
0
1901
-190
5
1906
-191
0
1911
-191
5
1916
-192
0
1921
-192
5
1926
-193
0
1931
-193
5
1936
-194
0
1941
-194
5
1946
-195
0
1951
-195
5
1956
-196
0
1961
-196
5
1966
-197
0
1971
-197
5
1976
-198
0
1981
-198
5
1986
-199
0
1991
-199
5
1996
-200
0
Coastal Impacts of Tropical Cyclones 1886-2000Queensland East Coast
Severe Non Severe
No significant impact since cyclone AIVU in 1989
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Severe Tropical Cyclones Queensland Region 1990-
2002 1990-91 JOY 1991-92 BETSY DAMAN ESAU FRAN 1992-93 POLLY 1993-94 REWA THEODORE 1994-95 VIOLET WARREN AGNES 1995-96 BARRY CELESTE 1996-97 DRENA JUSTIN 1997-98 KATRINA 1998-99 RONA 1999-00 2000-01 ABIGAIL 2001-02 CLAUDIA
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500 hPa Geopotential Height Anomalies500 hPa Geopotential Height Anomalies
Known Active TC Seasons 2000 to 2002
2000 to 2001 2001 to 2002
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Airport
Cairns
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Cyclones in the Cairns area since 1990
JOY - December 1990 – Cat 4
JUSTIN - March 1997 – Cat 2
RONA - February 1999 – Cat 3
STEVE - February 2000 – Cat 2
ABIGAIL – February 2001 – Cat 1
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Cyclone STEVE Feb 2000 Radar Image at time of Highest Wind Gust at CAIRNS Airport 143 km/h (77 knots)
Cairns
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Cairns
Cyclone STEVE Feb 2000
Radar Image at time of Highest Wind Gust at CAIRNS Airport 143 km/h (77 knots)
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http://www.bom.gov.au
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100 million hits per month
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“ABIGAIL”
2D Radar
3D RadarSatellite
IR Image
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3D radar image of severe cyclone ABIGAIL 2001
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Tropical cyclone position accuracy (km) - National
0
50
100
150
200
250
300
350
400
450
500
550
600
1985
-86
1986
-87
1987
-88
1988
-89
1989
-90
1990
-91
1991
-92
1992
-93
1993
-94
1994
-95
1995
-96
1996
-97
1997
-98
1998
-99
1999
-00
2000
-01
Season
Acc
ura
cy (
km)
+00hr +12hr +24hr +48hr
Trend (+00hr) Trend (+12hr) Linear (+24hr) Linear (+48hr)
12 hours from landfall – the forecast position is accurate
to about 100km
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Tropical Cyclone Threat Map
“issued with every Watch and Warning”
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A really BIG cyclonic impact …
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“OFA” 4 Feb 1990
NIUE
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Queensland Climate Change
and Community Vulnerability
to Tropical Cyclones
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Ocean WavesOcean Waves
Wave SetupWave Runup SWLMWL
HAT
AHD
ExtremeExtremeWindsWinds
ExpectedHigh Tide
CurrentsCurrentsSurgeStormStorm
TideTide
Water Level Components of a Storm Tide
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Bureau of Meteorology