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Tropical Cyclone SEAN : BoM Warnings
Season 2009-2010 Summaries (Operational Data): [AU] [SIO] [SPAC] [SH]
---> Tropical Cyclone SEAN Track Map and Data

HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 1243UTC 22 APRIL 2010

STORM FORCE WIND WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 1200 UTC a tropical low was centred within 25 nautical miles of
latitude twelve decimal eight south (12.8S)
longitude one hundred and fifteen decimal four east (115.4E)
Recent movement : south southwest at 5 knots
Maximum winds   : 30 knots
Central pressure: 1003 hPa
The low is expected to develop into a tropical cyclone in the next 12 to 18
hours.

AREA AFFECTED
Within 90 nautical miles of the centre.

FORECAST
Maximum winds to 30 knots increasing to 50 knots near the centre by 1200 UTC 23
April.

From 0000 UTC 23 April winds above 34 knots within 90 nautical miles of centre,
with rough seas and moderate swell.

From 1200 UTC 23 April winds above 48 knots within 35 nautical miles of centre
with very rough seas and moderate to heavy swell.

Forecast positions
At 0000 UTC 23 April: Within 55 nautical miles of 13.7 south 114.8 east
Central pressure 997 hPa.
Winds to 40 knots.
At 1200 UTC 23 April: Within 85 nautical miles of 14.5 south 113.9 east
Central pressure 991 hPa.
Winds to 50 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 1900 UTC 22 April 2010.

WEATHER PERTH
=========================================================================
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 1818UTC 22 APRIL 2010

STORM FORCE WIND WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 1800 UTC a tropical low was centred within 30 nautical miles of
latitude thirteen decimal two south (13.2S)
longitude one hundred and fifteen decimal one east (115.1E)
Recent movement : southwest at 5 knots
Maximum winds   : 30 knots
Central pressure: 1003 hPa
The low is expected to develop into a tropical cyclone in the next 12 to 18
hours.

AREA AFFECTED
Within 90 nautical miles of the centre.

FORECAST
Maximum winds to 30 knots increasing to 50 knots near the centre by 1800 UTC 23
April.

From 0000 UTC 23 April winds above 34 knots within 90 nautical miles of centre,
with rough seas and moderate swell.

From 1200 UTC 23 April winds above 48 knots within 35 nautical miles of centre
with very rough seas and moderate to heavy swell.

Forecast positions
At 0600 UTC 23 April: Within 55 nautical miles of 14.1 south 114.4 east
Central pressure 994 hPa.
Winds to 45 knots.
At 1800 UTC 23 April: Within 85 nautical miles of 14.9 south 113.3 east
Central pressure 990 hPa.
Winds to 50 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 0100 UTC 23 April 2010.

WEATHER PERTH
=========================================================================
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 0054UTC 23 APRIL 2010

STORM FORCE WIND WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 0000 UTC a tropical low was centred within 25 nautical miles of
latitude thirteen decimal six south (13.6S)
longitude one hundred and fourteen decimal zero east (114.0E)
Recent movement : southwest at 7 knots
Maximum winds   : 45 knots
Central pressure: 995 hPa

AREA AFFECTED
Within 50 nautical miles in northern quadrants extending to within 80 nautical
miles in southern quadrants.

FORECAST
Maximum winds to 45 knots increasing to 60 knots near the centre by 0000 UTC 24
April.

Winds above 34 knots within 50 nautical miles in northern quadrants extending
to within 80 nautical miles in southern quadrants, with rough seas and moderate
swell.

From 0600 UTC 23 April winds above 48 knots within 25 nautical miles of centre
with very rough seas and moderate to heavy swell.

Forecast positions
At 1200 UTC 23 April: Within 55 nautical miles of 14.5 south 112.8 east
Central pressure 990 hPa.
Winds to 50 knots.
At 0000 UTC 24 April: Within 85 nautical miles of 15.7 south 111.7 east
Central pressure 985 hPa.
Winds to 60 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 0700 UTC 23 April 2010.

WEATHER PERTH
=========================================================================
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 0734UTC 23 APRIL 2010

STORM FORCE WIND WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 0600 UTC Tropical Cyclone Sean was centred within 25 nautical miles of
latitude fourteen decimal zero south (14.0S)
longitude one hundred and fourteen decimal zero east (114.0E)
Recent movement : southwest at 5 knots
Maximum winds   : 50 knots
Central pressure: 990 hPa

AREA AFFECTED
Within 50 nautical miles in northern quadrants extending to within 80 nautical
miles in southern quadrants.

FORECAST
Maximum winds to 50 knots increasing to 60 knots near the centre by 0600 UTC 24
April.

Winds above 48 knots within 25 nautical miles of centre with very rough seas
and moderate to heavy swell.

Winds above 34 knots within 50 nautical miles in northern quadrants extending
to within 80 nautical miles in southern quadrants, with rough seas and moderate
swell.

Forecast positions
At 1800 UTC 23 April: Within 50 nautical miles of 14.9 south 113.1 east
Central pressure 988 hPa.
Winds to 55 knots.
At 0600 UTC 24 April: Within 80 nautical miles of 15.8 south 112.3 east
Central pressure 984 hPa.
Winds to 60 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 1300 UTC 23 April 2010.

WEATHER PERTH
=========================================================================
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 1243UTC 23 APRIL 2010

STORM FORCE WIND WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 1200 UTC Tropical Cyclone Sean was centred within 30 nautical miles of
latitude fourteen decimal four south (14.4S)
longitude one hundred and thirteen decimal seven east (113.7E)
Recent movement : south southwest at 5 knots
Maximum winds   : 50 knots
Central pressure: 990 hPa

AREA AFFECTED
Within 50 nautical miles in northern quadrants extending to within 80 nautical
miles in southern quadrants.

FORECAST
Maximum winds to 50 knots near the centre increasing to 60 knots by 0000 UTC 24
April.

Winds above 48 knots within 20 nautical miles of centre increasing to within 25
nautical miles of centre after 0000 UTC 24 April with very rough to high seas
and heavy swell.

Winds above 34 knots within 50 nautical miles in northern quadrants extending
to within 80 nautical miles in southern quadrants, with rough seas and moderate
to heavy swell.

Forecast positions
At 0000 UTC 24 April: Within 60 nautical miles of 15.4 south 113.3 east
Central pressure 984 hPa.
Winds to 60 knots.
At 1200 UTC 24 April: Within 90 nautical miles of 16.2 south 112.7 east
Central pressure 984 hPa.
Winds to 60 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 1900 UTC 23 April 2010.

WEATHER PERTH
=========================================================================
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 1835UTC 23 APRIL 2010

STORM FORCE WIND WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 1800 UTC Tropical Cyclone Sean was centred within 30 nautical miles of
latitude fourteen decimal nine south (14.9S)
longitude one hundred and thirteen decimal four east (113.4E)
Recent movement : south southwest at 5 knots
Maximum winds   : 55 knots
Central pressure: 987 hPa

AREA AFFECTED
Within 50 nautical miles in northern quadrants extending to within 80 nautical
miles in southern quadrants.

FORECAST
Maximum winds to 55 knots near the centre increasing to 60 knots by 0600 UTC 24
April.

Winds above 48 knots within 20 nautical miles of centre increasing to within 25
nautical miles of centre after 0000 UTC 24 April with very rough to high seas
and heavy swell.

Winds above 34 knots within 50 nautical miles in northern quadrants extending
to within 80 nautical miles in southern quadrants, with rough seas and moderate
to heavy swell.

Forecast positions
At 0600 UTC 24 April: Within 60 nautical miles of 15.8 south 113.0 east
Central pressure 984 hPa.
Winds to 60 knots.
At 1800 UTC 24 April: Within 90 nautical miles of 16.5 south 112.2 east
Central pressure 984 hPa.
Winds to 60 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 0100 UTC 24 April 2010.

WEATHER PERTH
=========================================================================
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 0046UTC 24 APRIL 2010

STORM FORCE WIND WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 0000 UTC Tropical Cyclone Sean was centred within 25 nautical miles of
latitude fifteen decimal five south (15.5S)
longitude one hundred and thirteen decimal zero east (113.0E)
Recent movement : south southwest at 6 knots
Maximum winds   : 55 knots
Central pressure: 988 hPa

AREA AFFECTED
Within 50 nautical miles in northern quadrants extending to within 80 nautical
miles in southern quadrants.

FORECAST
Maximum winds to 55 knots near the centre increasing to 60 knots by 1800 UTC 24
April.

Winds above 48 knots within 20 nautical miles of centre with very rough to high
seas and heavy swell.

Winds above 34 knots within 50 nautical miles in northern quadrants extending
to within 80 nautical miles in southern quadrants, with rough seas and moderate
to heavy swell.

Forecast positions
At 1200 UTC 24 April: Within 60 nautical miles of 16.5 south 112.5 east
Central pressure 988 hPa.
Winds to 55 knots.
At 0000 UTC 25 April: Within 90 nautical miles of 17.3 south 111.7 east
Central pressure 984 hPa.
Winds to 60 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 0700 UTC 24 April 2010.

WEATHER PERTH
=========================================================================
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 0644UTC 24 APRIL 2010

STORM FORCE WIND WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 0600 UTC Tropical Cyclone Sean was centred within 25 nautical miles of
latitude fifteen decimal nine south (15.9S)
longitude one hundred and twelve decimal six east (112.6E)
Recent movement : southwest at 6 knots
Maximum winds   : 55 knots
Central pressure: 988 hPa

AREA AFFECTED
Within 50 nautical miles in northern quadrants extending to within 90 nautical
miles in southern quadrants.

FORECAST
Maximum winds to 55 knots near the centre easing to 50 knots by 0600 UTC 25
April.

Winds above 48 knots within 20 nautical miles of centre with very rough to high
seas and heavy swell.

Winds above 34 knots within 50 nautical miles in northern quadrants extending
to within 90 nautical miles in southern quadrants, with rough seas and moderate
to heavy swell.

Forecast positions
At 1800 UTC 24 April: Within 55 nautical miles of 16.8 south 111.8 east
Central pressure 988 hPa.
Winds to 55 knots.
At 0600 UTC 25 April: Within 85 nautical miles of 17.5 south 110.8 east
Central pressure 990 hPa.
Winds to 50 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 1300 UTC 24 April 2010.

WEATHER PERTH
=========================================================================
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 1242UTC 24 APRIL 2010

STORM FORCE WIND WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 1200 UTC Tropical Cyclone Sean was centred within 30 nautical miles of
latitude seventeen decimal one south (17.1S)
longitude one hundred and twelve decimal five east (112.5E)
Recent movement : south southwest at 7 knots
Maximum winds   : 50 knots
Central pressure: 990 hPa

AREA AFFECTED
Within 40 nautical miles in northern quadrants extending to within 80 nautical
miles in southern quadrants.

FORECAST
Maximum winds to 50 knots near the centre easing to 40 knots by 1200 UTC 25
April.

Winds above 48 knots within 25 nautical miles of centre with very rough to high
seas and heavy swell.

Winds above 34 knots within 40 nautical miles in northern quadrants extending
to within 80 nautical miles in southern quadrants, with rough seas and moderate
to heavy swell.

Forecast positions
At 0000 UTC 25 April: Within 60 nautical miles of 18.4 south 111.9 east
Central pressure 988 hPa.
Winds to 50 knots.
At 1200 UTC 25 April: Within 90 nautical miles of 19.0 south 110.5 east
Central pressure 995 hPa.
Winds to 40 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 1900 UTC 24 April 2010.

WEATHER PERTH
=========================================================================
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 1828UTC 24 APRIL 2010

STORM FORCE WIND WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 1800 UTC Tropical Cyclone Sean was centred within 45 nautical miles of
latitude seventeen decimal eight south (17.8S)
longitude one hundred and twelve decimal three east (112.3E)
Recent movement : south southwest at 7 knots
Maximum winds   : 50 knots
Central pressure: 990 hPa

AREA AFFECTED
Within 40 nautical miles in northern quadrants extending to within 80 nautical
miles in southern quadrants.

FORECAST
Maximum winds to 50 knots near the centre easing to 40 knots by 1800 UTC 25
April.

Winds above 48 knots within 25 nautical miles of centre with very rough to high
seas and heavy swell. Winds easing below 48 knots by 0600 UTC 25 April.

Winds above 34 knots within 40 nautical miles in northern quadrants extending
to within 80 nautical miles in southern quadrants, with rough seas and moderate
to heavy swell.

Forecast positions
At 0600 UTC 25 April: Within 60 nautical miles of 18.8 south 111.3 east
Central pressure 992 hPa.
Winds to 45 knots.
At 1800 UTC 25 April: Within 80 nautical miles of 19.1 south 109.4 east
Central pressure 995 hPa.
Winds to 40 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 0100 UTC 25 April 2010.

WEATHER PERTH
=========================================================================
HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 0057UTC 25 APRIL 2010

GALE WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 0000 UTC Tropical Cyclone Sean was relocated by satellite to be within 20
nautical miles of
latitude seventeen decimal five south (17.5S)
longitude one hundred and eleven decimal three east (111.3E)
Recent movement : west southwest at 6 knots
Maximum winds   : 40 knots
Central pressure: 996 hPa

AREA AFFECTED
Within 45 nautical miles of the centre.

FORECAST
Maximum winds to 40 knots near the centre easing to 30 knots by 0600 UTC 25
April.

Winds above 34 knots within 45 nautical miles of centre until 0600 UTC 25 April
with rough seas and moderate to heavy swell.

Forecast positions
At 1200 UTC 25 April: Within 45 nautical miles of 17.7 south 110.0 east
Central pressure 1000 hPa.
Winds to 30 knots.
At 0000 UTC 26 April: Within 75 nautical miles of 17.8 south 107.9 east
Central pressure 1000 hPa.
Winds to 30 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to [email protected] or fax to +61892632261
or satellite to SAC 1241 through Land Earth Station Perth 312.

Next warning will be issued by 0700 UTC 25 April 2010.

WEATHER PERTH
=========================================================================
CANCELLATION

HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 0651UTC 25 APRIL 2010

GALE WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 0600 UTC Ex-Tropical Cyclone Sean was centred within 15 nautical miles of
latitude eighteen decimal one south (18.1S)
longitude one hundred and ten decimal five east (110.5E)
Recent movement : west southwest at 10 knots
Maximum winds   : 30 knots
Central pressure: 1000 hPa

AREA AFFECTED
Nil.

FORECAST
Gales are no longer expected.

REMARKS
##

No further warnings will be issued unless the system intensifies.

WEATHER PERTH

Tropical cyclone tracks developed by Michael Bath using operational warnings and advisories.


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Document: tropical_cyclone_sean_bom_warnings.htm Updated: 2 May 2017