Category Archives: Australian Region

Tropical Cyclone Dianne Brings Wind and Rain to Western Australia

Leave a reply

Tropical Cyclone Dianne brought wind and rain to Western Australia on Friday.  At 5:00 p.m. EDT on Friday the center of Tropical Cyclone Dianne was located at latitude 16.6°S and longitude 123.8°E which put the center about 75 miles (120 km) north-northeast of the Derby, Australia.  Dianne was moving toward the south at 8 m.p.h. (13 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h).  The minimum surface pressure was 991 mb.

A Warning is in effect for the portion of the coast between Kuri Bay and Derby.

The center of Tropical Cyclone Dianne made landfall on the coast of Western Australia north-northeast of Derby.  Dianne was the equivalent of a tropical storm at the time of landfall.  The circulation around Tropical Cyclone Dianne was small.  Winds to tropical storm force only extended out 65 miles (105 km) from the center of Dianne’s circulation.

Tropical Cyclone Dianne will move around the western end of a high pressure system over northern Australia.  The high pressure system will steer Dianne toward the south during the next 24 hours.  On its anticipated track, Tropical Cyclone Dianne will move inland over Western Australia during the next 24 hours.

Tropical Cyclone Dianne will bring strong winds and locally heavy rain to parts of Western Australia.  Heavy rain could cause flash floods in some locations.

Flood Watches are in effect for the Tanami Desert, the Western Desert and the Sandy Desert.

Elsewhere over the South Indian Ocean, Tropical Cyclone Courtney intensified to the equivalent of a major hurricane southwest of the Cocos Islands.  At 5:00 p.m. EDT on Friday the center of Tropical Cyclone Courtney was located at latitude 17.6°S and longitude 92.5°E which put the center about 445 miles (715 km) southwest of the Cocos Islands.  Courtney was moving toward the west-southwest at 18 m.p.h. (30 km/h).  The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 160 m.p.h. (260 km/h).  The minimum surface pressure was 948 mb.

Tropical Cyclone Dianne Nears Western Australia

Leave a reply

Tropical Cyclone Dianne neared the coast of Western Australia on Friday morning.  At 5:00 a.m. EDT on Friday the center of Tropical Cyclone Dianne was located at latitude 15.3°S and longitude 123.6°E which put the center about 140 miles (225 km) north of the Derby, Australia.  Dianne was moving toward the south-southeast at 10 m.p.h. (16 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h).  The minimum surface pressure was 991 mb.

A Warning is in effect for the area between Kuri Bay and Derby.

A Tropical Low strengthened to Tropical Cyclone Dianne near the coast of Western Australia during Thursday night.  More thunderstorms formed near the center of Tropical Cyclone Dianne.  More thunderstorms also formed in bands revolving around the center of Dianne’s circulation.  Storms near the center of Dianne generated more upper level divergence that pumped mass away from the tropical cyclone.  The removal of more mass caused the surface pressure to decrease.

The circulation around Tropical Cyclone Dianne was small.  Winds to tropical storm force extended out 90 miles (145 km) from the center of Dianne’s circulation.

Tropical Cyclone Dianne will move through an environment somewhat favorable for intensification during the next few hours.  Dianne will move over water where where the Sea Surface Temperatures are near 29°C.  It will move under the northern part of an upper level ridge that extends from over Australia to the South Indian Ocean.  The upper level ridge will produce easterly winds that will blow toward the top of the Tropical Low.  Those winds will cause some vertical wind shear.  The vertical wind shear will inhibit intensification, but the wind shear may not be enough to prevent intensification.  Dianne could intensify during the next few hours.

Tropical Cyclone Dianne will move around the western end of a high pressure system over northern Australia.  The high pressure system will steer Dianne toward the southeast during the next 24 hours.  On its anticipated track, Tropical Cyclone Dianne will make landfall on the coast of Western Australia northeast of Derby in a few hours.

Tropical Cyclone Dianne will bring strong winds and locally heavy rain to parts of Western Australia.  Heavy rain could cause flash floods in some locations.

Flood Watches are in effect for the Tanami Desert, the Western Desert and the Sandy Desert.

Elsewhere over the South Indian Ocean, Tropical Cyclone Courtney passed south of the Cocos Islands.  At 5:00 a.m. EDT on Friday the center of Tropical Cyclone Courtney was located at latitude 16.9°S and longitude 94.9°E which put the center about 330 miles (530 km) south-southwest of the Cocos Islands.  Courtney was moving toward the west at 18 m.p.h. (30 km/h).  The maximum sustained wind speed was 90 m.p.h. (145 km/h) and there were wind gusts to 115 m.p.h. (185 km/h).  The minimum surface pressure was 972 mb.

Tropical Low Prompts Watch for Western Australia

Leave a reply

A risk posed by a Tropical Low prompted the Australian Bureau of Meteorology to issue a Watch for a portion of the coast of Western Australia on Thursday.  At 5:00 a.m. EDT on Thursday the center of the Tropical Low was located at latitude 13.8°S and longitude 121.8°E which put the center about 215 miles (350 km) west-northwest of the Kuri Bay, Australia.  The Tropical Low was moving toward the east-northeast at 5 m.p.h. (7 km/h).  The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h).  The minimum surface pressure was 997 mb.

A Watch is in effect for the portion of the coast of Western Australia from Mitchell Plateau to Beagle Bay.  The Watch includes Derby and Beagle Bay.

A low pressure system over the South Indian Ocean west of Australia exhibited more organization on Thursday morning and the Australian Bureau of Meteorology classified the system as a Tropical Low.  The U.S. Joint Typhoon Warning Center designated the low pressure system as Invest 93S.

The distribution of thunderstorms in the Tropical Low was asymmetrical.  Thunderstorms were occurring in bands in the western side of the Tropical Low.  Bands in the eastern side of the Tropical Low consisted primarily of showers and lower clouds.  Storms near the center of circulation generated upper level divergence that pumped mass away to the west of the Tropical Low.  The removal of mass caused the surface pressure to decrease slowly.

The Tropical Low will move through an environment somewhat favorable for intensification during the next 24 hours.  The Tropical Low will move over water where where the Sea Surface Temperatures are near 29°C.  It will move under the northern part of an upper level ridge that extends from over Australia to the South Indian Ocean.  The upper level ridge will produce easterly winds that will blow toward the top of the Tropical Low.  Those winds will cause moderate vertical wind shear.  The moderate vertical wind shear will inhibit intensification, but the wind shear may not be enough to prevent intensification.  The Tropical Low could intensify during the next 24 hours.

The Tropical Low will move around the western end of a high pressure system over northern Australia.  The high pressure system will steer the Tropical Low toward the southeast during the next 24 hours.  On its anticipated track, the Tropical Low will make landfall on the coast of Western Australia between Kuri Bay and Derby in 36 hours.

The Tropical Low will bring strong winds and locally heavy rain to parts of Western Australia.  Heavy rain could cause flash floods in some locations.

Elsewhere over the South Indian Ocean, Tropical Cyclone Courtney continued to strengthen south-southeast of the Cocos Islands.  At 5:00 a.m. EDT on Thursday the center of Tropical Cyclone Courtney was located at latitude 16.8°S and longitude 99.5°E which put the center about 380 miles (610 km) south-southeast of the Cocos Islands.  Courtney was moving toward the west at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 90 m.p.h. (145 km/h) and there were wind gusts to 115 m.p.h. (185 km/h).  The minimum surface pressure was 973 mb.

Tropical Cyclone Courtney Strengthens to Equivalent of Hurricane/Typhoon

Leave a reply

Tropical Cyclone Courtney strengthened to the equivalent of a hurricane/typhoon over the South Indian Ocean southeast of the Cocos Islands on Wednesday.  At 5:00 p.m. EDT on Wednesday the center of Tropical Cyclone Courtney was located at latitude 17.3°S and longitude 101.7°E which put the center about 505 miles (815 km) southeast of the Cocos Islands.  Courtney was moving toward the west at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 80 m.p.h. (130 km/h) and there were wind gusts to 100 m.p.h. (160 km/h).  The minimum surface pressure was 980 mb.

Tropical Cyclone Courtney strengthened steadily on Wednesday.  The inner end of a rainband wrapped around the center of Courtney’s circulation.  Other bands of showers and thunderstorms were revolving around the center of Tropical Storm Courtney.  Storms near the center of Courtney generated upper level divergence that pumped mass away from the tropical cyclone.  The removal of mass caused the surface pressure to decrease.

The size of the circulation around Tropical Cyclone Courtney increased on Wednesday.  Winds to hurricane/typhoon force extended out 30 miles (50 km) from the center of Courtney’s circulation.  Winds to tropical storm force extended out 150 miles (240 km) from the center of Tropical Cyclone Courtney.

Tropical Cyclone Courtney will move through an environment somewhat favorable for intensification during the next 24 hours. Courtney will move over water where where the Sea Surface Temperatures are near 28°C.  It will move under the northern part of an upper level ridge that is west of Australia.  The upper level ridge will produce easterly winds that will blow toward the top of Courtney’s circulation.  Those winds will cause some vertical wind shear.  The vertical wind shear will inhibit intensification, but the wind shear may not be enough to prevent intensification.  Tropical Cyclone Courtney is likely to intensify during the next 24 hours.

Tropical Cyclone Courtney will move around the northern side of a high pressure system that is over the South Indian Ocean.  The high pressure system will steer Courtney toward the west during the next 24 hours.  On its anticipated track, Tropical Cyclone Courtney will pass south of the Cocos Islands later this week.

Tropical Cyclone Courtney Develops Northwest of Australia

Leave a reply

Tropical Cyclone Courtney developed over the South Indian Ocean northwest of Australia on Tuesday.  At 5:00 p.m. EDT on Tuesday the center of Tropical Cyclone Courtney was located at latitude 17.4°S and longitude 106.3°E which put the center about 585 miles (945 km) northwest of Exmouth, Australia.  Courtney was moving toward the west-southwest at 17 m.p.h. (28 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h).  The minimum surface pressure was 993 mb.

A low pressure system over the South Indian Ocean northwest of Australia strengthened on Tuesday and the Australian Bureau of Meteorology designated the system as Tropical Cyclone Courtney.  More thunderstorms formed near the center of Courtney’s circulation.  More thunderstorms also developed in bands revolving around the center of Tropical Cyclone Courtney.  Storms near the center of Courtney generated upper level divergence that pumped mass away from the tropical cyclone.  The removal of mass caused the surface pressure to decrease.

The circulation around Tropical Cyclone Courtney was small.  Winds to tropical storm force extended out 85 miles (135 km) from the center of Courtney’s circulation.

Tropical Cyclone Courtney will move through an environment somewhat favorable for intensification during the next 24 hours.  Courtney will move over water where where the Sea Surface Temperatures are near 28°C.  It will move under the northern part of an upper level ridge that is west of Australia.  The upper level ridge will produce easterly winds that will blow toward the top of Courtney’s circulation.  Those winds will cause moderate vertical wind shear.  The moderate vertical wind shear will inhibit intensification, but the wind shear may not be enough to prevent intensification.  Tropical Cyclone Courtney is likely to intensify during the next 24 hours.

Tropical Cyclone Courtney will move around the northern side of a high pressure system that is over the South Indian Ocean.  The high pressure system will steer Courtney toward the west during the next 24 hours.  On its anticipated track, Tropical Cyclone Courtney will pass far to the south of Christmas Islands.  Courtney will pass south of the Cocos Islands later this week.

Tropical Cyclone Alfred Brings Wind and Rain to Brisbane

Tropical Cyclone Alfred brought wind and rain to Brisbane on Friday.  At 10:00 a.m. EST on Friday the center of Tropical Cyclone Alfred was located at latitude 27.4°S and longitude 153.4°E which put the center about 45 miles (75 km) east of Brisbane, Australia.  Alfred was moving toward the west-northwest at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h).  The minimum surface pressure was 985 mb.

A Warning is in effect for the portion of the coast from Noosa, Queensland to Ballina, New South Wales.  The Warning includes Brisbane.

Tropical Cyclone Alfred brought wind and rain to the area around Brisbane, Australia on Friday.  A band of heavier rain and stronger winds stretched from Southport through Beenleigh to Brisbane.

A weather station at the airport in Brisbane reported a sustained wind speed of 40 m.p.h. (65 km/h) and a wind gust of 58 m.p.h. (93 km/h).  The airport had received 0.79 inches (20.2  mm) of rain.  A weather station at Coolangatta reported a sustained wind speed of 37 m.p.h. (59 km/h) and a wind gust of 62 m.p.h. (100 km/h).

Tropical Cyclone Alfred was the equivalent of a tropical storm when it made landfall on the east coast of Australia.  The circulation around Alfred was large.  Winds to tropical storm force extended out 275 miles (445 km) from the center of Tropical Cyclone Alfred.

Tropical Cyclone Alfred will move around the northern side of a high pressure system that is southeast of Australia.  The high pressure system will steer Tropical Cyclone Alfred toward the west during the next 24 hours.  On its anticipated track, the center of Tropical Cyclone Alfred will pass near Brisbane during  the next few hours.

Tropical Cyclone Alfred will continue to bring strong winds and locally heavy rain to southeast Queensland and northeast New South Wales.   Bands in the southern side of Alfred’s circulation will drop the heaviest rain.  Heavy rain is likely to cause flash floods in some locations.  Tropical Cyclone Alfred will also be capable of causing a storm surge of up to six feet (1.8 meters) along portions of the coast.

A Flood Watch is in effect for southeast Queensland.  A Flood Watch is also in effect for the northern rivers of New South Wales.

 

Tropical Cyclone Alfred Approaches Brisbane

Tropical Cyclone Alfred was approaching Brisbane, Australia on Thursday.  At 10:00 a.m. EST on Thursday the center of Tropical Cyclone Alfred was located at latitude 27.3°S and longitude 154.9°E which put the center about 130 miles (210 km) east of Brisbane, Australia.    Alfred was moving toward the west at 3 m.p.h. (5 km/h).  The maximum sustained wind speed was 60 m.p.h. (95 km/h) and there were wind gusts to 75 m.p.h. (120 km/h).  The minimum surface pressure was 985 mb.

A Warning is in effect for the portion of the coast from Double Island Point, Queensland to Grafton, New South Wales.  The Warning includes Brisbane.

An upper low near the east coast of Australia continued to produce northwesterly winds that blew across the top of Tropical Cyclone Alfred.  Those winds caused strong vertical wind shear.  Those winds also caused the distribution of thunderstorms around Tropical Cyclone Alfred to be asymmetrical.  Thunderstorms were occurring in bands in the southern part of Alfred’s circulation.  Bands in the other parts of Tropical Cyclone Alfred consisted primarily of showers and lower clouds.

The circulation around Tropical Cyclone Alfred was large.  Winds to tropical storm force extended out 250 miles (400 km) from the center of Alfred’s circulation.

Tropical Cyclone Alfred will move through an environment that will be unfavorable for intensification during the next 18 hours.  Alfred will move over water where where the Sea Surface Temperatures are near 28°C.  However, the upper level low near the east coast of Australia will continue to produce northwesterly winds that will blow toward the top of Alfred’s circulation.  Those winds will continue to cause strong vertical wind shear.  The strong wind shear will inhibit intensification.  Tropical Cyclone Alfred is close to being in equilibrium with its surrounding environment.  The intensity of Tropical Cyclone Alfred could remain relatively constant during the next 18 hours.

Tropical Cyclone Alfred will move around the northern side of a high pressure system that is southeast of Australia.  The high pressure system will steer Tropical Cyclone Alfred toward the west during the next 24 hours.  On its anticipated track, the center of Tropical Cyclone Alfred will reach the east coast of Australia near Brisbane in 18 hours.

Tropical Cyclone Alfred will bring strong winds and locally heavy rain to southeast Queensland and northeast New South Wales.   Bands in the southern side of Alfred’s circulation will drop the heaviest rain.  Heavy rain is likely to cause flash floods in some locations.  Tropical Cyclone Alfred will also be capable of causing a storm surge of up to six feet (1.8 meters) along portions of the coast.

A Flood Watch is in effect for southeast Queensland.  A Flood Watch is also in effect for the northern rivers of New South Wales.

Tropical Cyclone Alfred Meanders East of Brisbane

Tropical Cyclone Alfred meandered east of Brisbane, Australia on Wednesday.  At 10:00 a.m. EST on Wednesday the center of Tropical Cyclone Alfred was located at latitude 27.3°S and longitude 156.6°E which put the center about 230 miles (370 km) east of Brisbane, Australia.    Alfred was moving toward the east-southeast at 4 m.p.h. (6 km/h).  The maximum sustained wind speed was 65 m.p.h. (105 km/h) and there were wind gusts to 80 m.p.h. (130 km/h).  The minimum surface pressure was 978 mb.

A Warning is in effect for the portion of the coast from Double Island Point, Queensland to Grafton, New South Wales.  The Warning includes Brisbane.

An upper low near the east coast of Australia produced west-northwesterly winds that blew across the top of Tropical Cyclone Alfred on Wednesday.  Those winds caused strong vertical wind shear.  Those winds also caused the distribution of thunderstorms around Tropical Cyclone Alfred to become more asymmetrical.  Thunderstorms were occurring in bands in the southeastern part of Alfred’s circulation.  A few thunderstorms were also occurring in a band in the northern edge of Tropical Cyclone Alfred.  Bands in the other parts of Alfred’s circulation consisted primarily of showers and lower clouds.

he circulation around Tropical Cyclone Alfred was very large.  Winds to tropical storm force extended out 320 miles (520 km) from the center of Alfred’s circulation.

Tropical Cyclone Alfred will move through an environment that will be unfavorable for intensification during the next 24 hours.  Alfred will move over water where where the Sea Surface Temperatures are near 28°C.  However, the upper level low near the east coast of  Australia will continue to produce west-northwesterly winds that will blow toward the top of Alfred’s circulation.  Those winds will continue to cause strong vertical wind shear.  The stroong wind shear will inhibit intensification.  Tropical Cyclone Alfred could be close to being in equilibrium with its surrounding environment.  The intensity of Tropical Cyclone Alfred could remain relatively constant during the next 24 hours.

Tropical Cyclone Alfred will move around the northern side of a high pressure system that is southeast of Australia.  The high pressure system will steer Tropical Cyclone Alfred toward the west during the next 24 hours.  On its anticipated track, Tropical Cyclone Alfred will reach the east coast of Australia near Brisbane in 36 hours.

Tropical Cyclone Alfred will bring strong winds and locally heavy rain to southeast Queensland and northeast New South Wales.  Heavy rain is likely to cause flash floods in some locations.  Alfred will also be capable of causing a storm surge of up to six feet (1.8 meters) along portions of the coast.

A Flood Watch is in effect for southeast Queensland.  A Flood Watch is also in effect for the Northern Rivers of New South Wales.

Tropical Cyclone Alfred Moves Toward Australia

Tropical Cyclone Alfred started to move toward the east coast of Australia on Tuesday.  The Australian Bureau of Meteorology issued a Warning for a portion of the coast.  At 10:00 a.m. EST on Tuesday the center of Tropical Cyclone Alfred was located at latitude 27.8°S and longitude 158.2°E which put the center about 335 miles (540 km) east of Brisbane, Australia.   Alfred was moving toward the west at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 65 m.p.h. (105 km/h) and there were wind gusts to 80 m.p.h. (130 km/h).  The minimum surface pressure was 981 mb.

A Warning is in effect for the portion of the coast from Double Island Point , Queensland to Grafton, New South Wales.  The Warning includes Brisbane.

A Watch remains in effect for the portion of the coast from Sandy Cape to Double Island Point, Queensland.

The structure of Tropical Cyclone Alfred started to change when Alfred began to move west toward the east coast of Australia.  Thunderstorms were occurring in bands in the western and southern parts of Alfred’s circulation.  Bands in the northern and eastern parts of Tropical Cyclone Alfred consisted primarily of showers and lower clouds.  Storms near the center of Alfred generated upper level divergence that pumped mass away to the east of the tropical cyclone.

The circulation around Tropical Cyclone Alfred was very large.  Winds to tropical storm force extended out 250 miles (400 km) from the center of Alfred’s circulation.

Tropical Cyclone Alfred will move through an environment that will be marginally favorable for intensification during the next 24 hours.  Alfred will move over water where where the Sea Surface Temperatures are near 28°C.  However, the upper level low over eastern Australia will continue to produce northeasterly winds that will blow toward the top of Alfred’s circulation.  Those winds will continue to cause moderate vertical wind shear.  The moderate wind shear will inhibit intensification.  Tropical Cyclone Alfred could be close to being in equilibrium with its surrounding environment.  The intensity of Tropical Cyclone Alfred could remain relatively constant during the next 24 hours.

Tropical Cyclone Alfred will move around the northern side of a high pressure system that is southeast of Australia.  The high pressure system will steer Tropical Cyclone Alfred toward the west during the next 24 hours.  On its anticipated track, Tropical Cyclone Alfred will approach the east coast of Australia near Brisbane in 36 hours.

Tropical Cyclone Alfred will bring strong winds and locally heavy rain to southeast Queensland and northeast New South Wales.  Heavy rain is likely to cause flash floods in some locations.  Alfred will also be capable of causing a storm surge of up to six feet (1.8 meters) along portions of the coast.

A Flood Watch is in effect for southeast Queensland.  A Flood Watch is also in effect for the Northern Rivers and Mid-North Coast of New South Wales.

Tropical Cyclone Alfred Lingers East of Australia

Tropical Cyclone Alfred lingered over the Coral Sea east of Australia on Monday.  At 10:00 p.m. EST on Monday the center of Tropical Cyclone Alfred was located at latitude 27.3°S and longitude 158.8°E which put the center about 370 miles (595 km) east of Brisbane, Australia.   Alfred was moving toward the southeast at 6 m.p.h. (10 km/h).  The maximum sustained wind speed was 65 m.p.h. (105 km/h) and there were wind gusts to 80 m.p.h. (130 km/h).  The minimum surface pressure was 983 mb.

A Watch is in effect for the portion of the coast from Sandy Cape, Queensland to Grafton, New South Wales.  The Watch includes Brisbane.

Tropical Cyclone Alfred did not look much like a tropical cyclone on satellite images on Monday night.  An upper level trough over the Coral Sea was producing strong northerly winds that were blowing across the top of Alfred’s circulation.  Those winds were causing strong vertical wind shear.  The strong wind shear was making the distribution of thunderstorms in Tropical Cyclone Alfred very asymmetrical.  Thunderstorms were still occurring in bands in the southern part of Alfred’s circulation.  Bands in the northern part of Tropical Cyclone Alfred consisted primarily of showers and lower clouds.

The circulation around Tropical Cyclone Alfred was very large.  Winds to tropical storm force extended out 260 miles (420 km) from the center of Alfred’s circulation.

Tropical Cyclone Alfred will move through an environment that will be unfavorable for intensification during the next 24 hours.  Alfred will move over water where where the Sea Surface Temperatures are near 28°C.  However, the upper level trough over the Coral Sea will continue to produce northerly winds that will blow toward the top of Alfred’s circulation.  Those winds will continue to cause strong vertical wind shear.  The strong wind shear will inhibit intensification.  Tropical Cyclone Alfred could be close to being in equilibrium with its surrounding environment.  The intensity of Tropical Cyclone Alfred could remain relatively constant during the next 24 hours.

A high pressure system southeast of Australia will block Tropical Cyclone Alfred.  The high pressure system will keep Alfred from moving farther to the southeast.  The high pressure system will steer Tropical Cyclone Alfred toward the west during the next 24 hours.  On its anticipated track, Tropical Cyclone Alfred could approach the east coast of Australia near Brisbane in 48 hours.