Post on 08-Feb-2016
description
TCWCs
BrisbaneDarwinPerth
Activity Report
Bureau of Meteorology
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
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
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
500 hPa Geopotential Height Anomalies500 hPa Geopotential Height Anomalies
Known Active TC Seasons 2000 to 2002
2000 to 2001 2001 to 2002
Airport
Cairns
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
Cyclone STEVE Feb 2000 Radar Image at time of Highest Wind Gust at CAIRNS Airport 143 km/h (77 knots)
Cairns
Cairns
Cyclone STEVE Feb 2000
Radar Image at time of Highest Wind Gust at CAIRNS Airport 143 km/h (77 knots)
http://www.bom.gov.au
100 million hits per month
“ABIGAIL”
2D Radar
3D RadarSatellite
IR Image
3D radar image of severe cyclone ABIGAIL 2001
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
Tropical Cyclone Threat Map
“issued with every Watch and Warning”
A really BIG cyclonic impact …
“OFA” 4 Feb 1990
NIUE
Queensland Climate Change
and Community Vulnerability
to Tropical Cyclones
Ocean WavesOcean Waves
Wave SetupWave Runup SWLMWL
HAT
AHD
ExtremeExtremeWindsWinds
ExpectedHigh Tide
CurrentsCurrentsSurgeStormStorm
TideTide
Water Level Components of a Storm Tide
Bureau of Meteorology