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Tropical Cyclone Fina Moves Over Timor Sea

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Tropical Cyclone Fina was moving over the Timor Sea on Sunday after it caused wind damage and electricity outages in Darwin.  At 10:00 a.m. EST on Sunday the center of Tropical Cyclone Fina was located at latitude 13.7°S and longitude 128.8°E which put the center about 155 miles (250 km) west-southwest of Darwin, Australia.  Fina was moving toward the southwest at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 110 m.p.h. (175 km/h) and there were wind gusts to 130 m.p.h. (210 km/h).  The minimum surface pressure was 960 mb.

A Warning was in effect for the portion of the coast from Wadeye, Australia to the Daly River Mouth.  A Warning was also in effect for the portion of the coast from the border between the Northern Territory and Western Australia to Kalumburu.

Tropical Cyclone Fina was still a well organized tropical cyclone on Sunday.  A small circular eye was visible at the center of Fina’s circulation.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Tropical Cyclone Fina.  Storms near the core of Fina 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 Fina was small.  Winds to hurricane/typhoon force extended out 20 miles (30 km) from the center of Fina’s circulation.  Winds to tropical storm force extended out 70 miles (110 km) from the center of Tropical Cyclone Fina.

The Hurricane Intensity Index (HII) for Tropical Cyclone Fina was 19.2.  The Hurricane Size Index (HSI) was 7.4 and the Hurricane Wind Intensity Size Index (HWISI) was 26.6.  Tropical Cyclone Fina was similar in size and intensity to Hurricane Zeta when Zeta hit Louisiana in 2020.

Tropical Cyclone Fina will move through an environment that will become unfavorable for intensification during the next 24 hours.  Fina will move over water where the Sea Surface Temperatures are near 30°C.  It will move under the western end of an upper level ridge over northern Australia.  The upper level ridge will produce northerly winds that will blow toward the top of Fina’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.  However, the circulation around the eastern side of Tropical Cyclone Fina will begin to pull drier air from northwestern Australia into its circulation.  The drier air will cause thunderstorms in the eastern side of Fina’s circulation to start to weaken.  The effects of the drier air will cause Tropical Cyclone Fina to start to weaken during the next 24 hours.

Tropical Cyclone Fina will move around the western end of a high pressure system over northern Australia.  The high pressure system will steer Fina toward the west-southwest during the next 24 hours.  On its anticipated track, the center of Tropical Cyclone Fina will reach the coast of Western Australia near of the King George River Mouth in 24 hours.

Tropical Cyclone Fina will continue to bring strong winds and heavy rain to the coast of the Western Australia northeast of Kalumburu.  Heavy rain is likely to cause floods in some locations.  Tropical Cyclone Fina could also cause a storm surge of up to 7 feet (2 meters) along parts of the coast of the Western Australia.

Flood Watches are in effect for the North West Coastal Rivers and the Bonaparte Coastal Rivers.

Tropical Cyclone Fina Brings Wind and Rain to Darwin

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Tropical Cyclone Fina brought wind and rain to Darwin, Australia on Saturday.  At 10:00 a.m. EST on Saturday the center of Tropical Cyclone Fina was located at latitude 12.2°S and longitude 130.4°E which put the center about 35 miles (55 km) northwest of Darwin, Australia.  Fina was moving toward the west-southwest at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 100 m.p.h. (160 km/h) and there were wind gusts to 120 m.p.h. (195 km/h).  The minimum surface pressure was 967 mb.

A Warning is in effect for the portion of the coast from Cape Hotham to Wadeye, Australia.  The Warning includes Darwin.  A Warning is also in effect for the western and central Tiwi Islands.

A Watch is in effect for the portion of the coast from Wadeye to Troughton Island, Australia.  The Watch includes Kalumburu.

Tropical Cyclone Fina brought wind and rain to the area around Darwin, Australia on Saturday.  The core of Fina’s circulation, where the strongest winds were, was passing to the northwest of Darwin.  A weather station at the Darwin Airport reported a sustained wind speed of 37 m.p.h. (57 km/h) and a wind gust to 53 m.p.h. (85 km/h).  The weather station also measure 5.89 inches (149.6 mm) of rain.

Tropical Cyclone Fina intensified to the equivalent of a Category 2 hurricane on the Saffir-Simpson Scale as it moved over the Timor Sea.  A very small eye was present at the center of Fina’s circulation.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Tropical Cyclone Fina.  Storms near the core of Fina 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 Fina was small.  Winds to hurricane/typhoon force extended out 20 miles (30 km) from the center of Fina’s circulation.  Winds to tropical storm force extended out 75 miles (120 km) from the center of Tropical Cyclone Fina.

The Hurricane Intensity Index (HII) for Tropical Cyclone Fina was 16.5.  The Hurricane Size Index (HSI) was 7.5 and the Hurricane Wind Intensity Size Index (HWISI) was 24.0.  Tropical Cyclone Fina was similar in size and intensity to Hurricane Idalia when Idalia hit Florida in 2023.

Tropical Cyclone Fina will move through an environment somewhat favorable for intensification while it moves over the Timor Sea during the next 24 hours.  Fina will move over water where the Sea Surface Temperatures are near 30°C.   It will move under the western end of an upper level ridge over northern Australia.  The upper level ridge will produce northerly winds that will blow toward the top of Fina’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 Fina could intensify during the next 24 hours.  Fina could strengthen to the equivalent of a major hurricane.

Tropical Cyclone Fina will move around the western end of a high pressure system over northern Australia.  The high pressure system will steer Fina toward the southwest during the next 24 hours.   On its anticipated track, the center of Tropical Cyclone Fina will move away from Darwin during the next 24 hours.   Fina will approach the coast of Western Australia northeast of Kalumburu in 36 hours.

Tropical Cyclone Fina will continue to bring strong winds and heavy rain to the coast of the Northern Territory of Australia southwest of Darwin.  Heavy rain is likely to cause floods in some locations.  Tropical Cyclone Fina could also cause a storm surge of up to 10 feet (3 meters) along parts of the coast of the Northern Territory.

Flood Watches are in effect for the North West Coastal Rivers and the Bonaparte Coastal Rivers.

Tropical Cyclone Fina Crosses Cobourg Peninsula

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Tropical Cyclone Fina moved across the Cobourg Peninsula in northern Australia on Friday.  At 4:00 p.m. EST on Friday the center of Tropical Cyclone Fina was located at latitude 11.8°S and longitude 131.6°E which put the center about 80 miles (130 km) northeast of Darwin, Australia.   Fina was moving toward the southwest at 8 m.p.h. (13 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 979 mb.

A Warning is in effect for the portion of the coast from Daly River Mouth to Cape Don, Australia.  The Warning includes Darwin.  A Warning is also in effect for the Tiwi Islands.

A Watch is in effect for the portion of the coast from Wadeye to Daly River Mouth.

Tropical Cyclone Fina intensified a little after it crossed the Cobourg Peninsula and moved over the Van Dieman Gulf.  A small circular eye was at the center of Fina’s circulation.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Tropical Cyclone Fina.  Storms near the core of Fina 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 Fina was small.  Winds to hurricane/typhoon force extended out 20 miles (30 km) from the center of Fina’s circulation.  Winds to tropical storm force extended out 70 miles (110 km) from the center of Tropical Cyclone Fina.

Tropical Cyclone Fina will move through an environment somewhat favorable for intensification while it moves over the Van Dieman Gulf during the next few hours. Fina will move over water where the Sea Surface Temperatures are near 30°C.  It will move under the western end of an upper level ridge over northern Australia.  The upper level ridge will produce northerly winds that will blow toward the top of Fina’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 Fina could intensify during the next 24 hours.

Tropical Cyclone Fina will move around the western end of a high pressure system over northern Australia.  The high pressure system will steer Fina toward the southwest during the next 24 hours.   On its anticipated track, the center of Tropical Cyclone Fina will pass near Darwin in 12 hours.   Fina will move over the Timor Sea on Saturday.

Tropical Cyclone Fina will bring strong winds and heavy rain to the coast of the Northern Territory of Australia.  Heavy rain is likely to cause floods in some locations.  Tropical Cyclone Fina could also cause a storm surge of up to 7 feet (2 meters) along parts of the coast of the Northern Territory.

Flood Watches are in effect for the North West Coastal Rivers.

Tropical Cyclone Fina Moves Toward Northern Australia

Tropical Cyclone Fina started to move toward the coast of northern Australia on Thursday night.  At 10:00 p.m. EST on Thursday the center of Tropical Cyclone Fina was located at latitude 10.4°S and longitude 132.4°E which put the center about 185 miles (300 km) northeast of Darwin, Australia and about 70 miles (110 km) north of Minjilang, Australia.  Fina was moving toward the west-southwest at 6 m.p.h. (10 km/h).  The maximum sustained wind speed was 75 m.p.h. (120 km/h) and there were wind gusts to 90 m.p.h. (145 km/h).  The minimum surface pressure was 980 mb.

A Warning is in effect for the portion of the coast from Dundee Beach to Warruwi, Australia.  The Warning includes Darwin, Minjilang and the Cobourg Peninsula.  A Warning is also in effect for the Tiwi Islands.

A Watch is in effect for the portion of the coast from Wadeye to Daly River Mouth.

Tropical Cyclone Fina strengthened to the equivalent of a hurricane/typhoon after it started to move toward the coast of northern Australia on Thursday.  The inner end of a rainband wrapped most of the way around the center to Fina’s circulation.  A small circular eye appeared to be forming at the center of Tropical Cyclone Fina.  Bands of showers and thunderstorms were revolving around the core of Fina’s circulation.  Storms near the core of Fina 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 Fina was small.  Winds to hurricane/typhoon force extended out 30 miles (50 km) from the center of Fina’s circulation.  Winds to tropical storm force extended out 80 miles (130 km) from the center of Tropical Cyclone Fina.

Tropical Cyclone Fina will move through an environment somewhat favorable for intensification during the next 24 hours.  Fina will move over water where the Sea Surface Temperatures are near 30°C.  It will move under the western end of an upper level ridge over northern Australia.  The upper level ridge will produce northerly winds that will blow toward the top of Fina’s circulation.  Those winds will cause moderate vertical wind shear.  The moderate vertical wind shear will inhibit intensification, but the shear may not be enough to prevent intensification.  Tropical Cyclone Fina could continue to intensify during the next 24 hours.

Tropical Cyclone Fina will move around the western end of a high pressure system over northern Australia.  The high pressure system will steer Fina toward the southwest during the next 24 hours.  On its anticipated track, the center of Tropical Cyclone Fina will pass near the northwestern end of the Cobourg Peninsula in 12 hours.  The center of Fina could be near the eastern end of Melville Island in 24 hours.  Fina could reach Darwin in less than 36 hours.

Tropical Cyclone Fina will bring strong winds and heavy rain to the coast of the Northern Territory of Australia.  Heavy rain is likely to cause floods in some locations.  Tropical Cyclone Fina could also cause a storm surge of up to 7 feet (2 meters) along parts of the coast of the Northern Territory.

Flood Watches are in effect for the North West Coastal Rivers.

Tropical Cyclone Anika Develops over Timor Sea

Tropical Cyclone Anika developed over the Timor Sea west of Darwin, Australia on Friday morning. At 10:00 a.m. EST on Friday the center of Tropical Cyclone Anika was located at latitude 12.8°S and longitude 127.6°E which put it about 120 miles (195 km) north-northeast of Kalumburu, Australia. Anika was moving toward the south-southwest at 3 m.p.h (5 km/h). The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h). The minimum surface pressure was 995 mb.

A Warning was in effect for the portion of the coast from Dundee Beach to Mitchell Plateau. The Warning included Wadeye, Wyndham and Kalumburu. A Watch was in effect for the portion of the coast from Mitchell Plateau to Cockatoo Island. A Watch was also in effect for the portion of the coast from Dundee Beach to Point Stuart. The Watch included Darwin and the Tiwi Islands.

The circulation around a low pressure system over the Timor Sea strengthened on Friday morning and the Australian Bureau of Meteorology designated the system as Tropical Cyclone Anika. More thunderstorms developed around the center of Anika’s circulation. Bands of showers and thunderstorms were revolving around the core of Tropical Cyclone Anika. Storms near the core generated upper level divergence that pumped mass away from the tropical cyclone. Winds to tropical storm force extended out 65 miles (105 km) from the center of Anika.

Tropical Cyclone Anika will move through an environment favorable for intensification during the next 24 hours. Anika will move over water where the Sea Surface Temperatures are near 30˚C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Tropical Cyclone Anika will strengthen during the next 24 hours and it could intensify rapidly. There is a chance that Anika could intensify to the equivalent of a hurricane/typhoon.

Tropical Cyclone Anika will be in a region where the steering winds are weak. A high pressure system over Australia will steer Anika slowly toward the west-southwest during the next 24 hours. On its anticipated track Tropical Cyclone Anika will approach the coast of Western Australia northeast of Kalumburu in 24 hours. Anika could become nearly stationary when it approaches the coast. Tropical Cyclone Anika will bring gusty winds and locally heavy rain to the coast of Western Australia northeast of Kalumburu. Heavy rain could cause flash floods in some locations. Flood Watches have been issued for the East Kimberly Rivers, North Kimberly Rivers and West Kimberly Rivers.

Tropical Low Forms West of Darwin

A Tropical Low formed west of Darwin, Australia on Wednesday night. At 10:00 p.m. EST on Wednesday the center of the Tropical Low was located at latitude 12.5°S and longitude 128.5°E which put it about 160 miles (255 km) west of Darwin, Australia. The Tropical Low was nearly stationary. The maximum sustained wind speed was 30 m.p.h. (50 km/h) and there were wind gusts to 40 m.p.h. (65 km/h). The minimum surface pressure was 1006 mb.

The circulation around a small low pressure system over the Timor Sea west of Darwin, Australia exhibited more organization on Wednesday night and the Australian Bureau of Meteorology designated the system as a Tropical Low. The strongest thunderstorms were occurring in bands northwest of the center of the circulation. There was also a band of thunderstorms in the southwestern part of the Tropical Low. Bands in the northeastern part of the circulation consisted primarily of showers and lower clouds.

The Tropical Low will be in an area where the steering winds are weak during the next 36 hours and it is forecast to remain nearly stationary. The Tropical Low will be in an environment somewhat favorable for intensification. The Tropical Low will be over water where the Sea Surface Temperatures are near 30˚C. It will be under the northern part of an upper level ridge centered over northern Australia. The ridge will produce easterly winds that will blow toward the top of the Tropical Low. Those winds will cause moderate vertical wind shear and the shear will inhibit intensification. The Tropical Low could gradually strengthen during the next 36 hours.

The Tropical Low is forecast to move toward Australia during the weekend. A Watch has been issued for the portion of the coast from Point Stuart to Kalumburu. The Watch includes Darwin, Wyndham, Wadeye and the Tiwi Islands.