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Tropical Cyclone Narelle Hits Cape York Peninsula

Tropical Cyclone Narelle hit the Cape York Peninsula northwest of Cape Melville on Thursday.  At 11:00 p.m. EDT on Thursday the center of Tropical Cyclone Narelle was located at latitude 13.4°S and longitude 142.5°E which put the center about 50 miles (85 km) northwest of Coen, Australia.  Narelle was moving toward the west at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 120 m.p.h. (195 km/h) and there were wind gusts to 150 m.p.h. (240 km/h).  The minimum surface pressure was 951 mb.

The Australian Bureau of Meteorology issued a Warning for the east coast of the Cape York Peninsula that is in effect from Lockhart River to Cape Melville.  The Warning includes Coen.  A Warning is also in effect for the west coast of the Cape York Peninsula from Mapoon to Pormpuraaw.  That Warning includes Weipa.

A Watch is in effect for the portion of the west coast of the Gulf of Carpentaria from south of Nhulunbuy to Port McArthur.

Even though Tropical Cyclone Narelle weakened after it moved over the Cape York Peninsula, the circulation around Narelle was still intact.  A well defined center of circulation was visible on satellite images.  Bands of showers and thunderstorms were revolving around the center of Narelle’s circulation.

The circulation around Tropical Cyclone Narelle was still very symmetrical.  Winds to hurricane/typhoon force extended out 65 miles (105 km) from the center of Narelle’s circulation. Winds to tropical storm force extended out 165 miles (265 km) from the center of Tropical Cyclone Narelle.

The Hurricane Intensity Index (HII) for Tropical Cyclone Narelle is 22.1.  The Hurricane Size Index (HSI) is 20.1 and the Hurricane Wind Intensity Size Index (HWISI) is 42.1. Tropical Cyclone Narelle is similar in size and intensity to Hurricane Milton when Milton hit Florida in 2024.

Tropical Cyclone Narelle will continue to weaken during the next few hours while the center is over the Cape York Peninsula.  Narelle will move into an environment favorable for intensification when it moves over the Gulf of Carpentaria.  Narelle will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge that is over the northern part of Australia.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Tropical Cyclone Narelle is likely to intensify again when it moves over the Gulf of Carpentaria.

Tropical Cyclone Narelle will move around the northern side of a high pressure system that is over Australia.  The high pressure system will steer Narelle toward the west during the next 24 hours.  On its anticipated track, Tropical Cyclone Narelle will move over the Gulf of Carpentaria in a few hours.

Tropical Cyclone Narelle will continue to bring strong winds and heavy rain to the northern part of the Cape York Peninsula during the next few hours.  Narelle will be capable of causing major damage.  Heavy rain is likely to cause flash floods in some locations.

Flood Watches are in effect for parts of the Cape York Peninsula and the North Tropical Coast of Queensland.

Tropical Cyclone Narelle Nears Cape York Peninsula

Tropical Cyclone Narelle was nearing the east coast of the Cape York Peninsula on Thursday morning.  At 11:00 a.m. EDT on Thursday the center of Tropical Cyclone Narelle was located at latitude 13.6°S and longitude 144.9°E which put the center about 230 miles (370 km) north of Cairns, Australia.  Narelle was moving toward the west at 13 m.p.h. (21 km/h).  The maximum sustained wind speed was 145 m.p.h. (230 km/h) and there were wind gusts to 175 m.p.h. (280 km/h).  The minimum surface pressure was 933 mb.

The Australian Bureau of Meteorology issued a Warning for the east coast of the Cape York Peninsula that is in effect from Lockhart River to Cape Tribulation.  The Warning includes Coen and Cooktown.  A Warning is also in effect for the west coast of the Cape York Peninsula from Mapoon to Pormpuraaw.  That Warning includes Weipa.

A Watch is in effect for the portion of the west coast of the Gulf of Carpentaria from south of Nhulunbuy to Port Mcarthur.

A circular eye with a diameter of 10 miles (16 km) was present at the center of Tropical Cyclone Narelle.  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 center of Narelle’s circulation.  Storms near the center of Narelle 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 Narelle increased on Wednesday night.  Winds to hurricane/typhoon force extended out 65 miles (105 km) from the center of Narelle’s circulation.  Winds to tropical storm force extended out 165 miles (265 km) from the center of Tropical Cyclone Narelle.

The Hurricane Intensity Index (HII) for Tropical Cyclone Narelle is 29.9.  The Hurricane Size Index (HSI) is 20.1 and the Hurricane Wind Intensity Size Index (HWISI) is 50.0.  Tropical Cyclone Narelle is similar in size and intensity to Hurricane Laura when Laura hit southwest Louisiana in 2020.

Tropical Cyclone Narelle will move through an environment that will be favorable for intensification during the next few hours. Narelle will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge that is over the northern part of the Coral Sea.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Tropical Cyclone Narelle could intensify during the next few hours.

Tropical Cyclone Narelle will move around the northern side of a high pressure system that is over Australia.   The high pressure system will steer Narelle toward the west during the next 24 hours.   On its anticipated track, Tropical Cyclone Narelle will hit the coast of Queensland northwest of Cape Melville in a few hours.

Tropical Cyclone Narelle will bring very strong winds and heavy rain to the northern part of the Cape York Peninsula.  Narelle will be capable of causing severe damage.  Heavy rain is likely to cause flash floods in some locations.  Tropical Cyclone Narelle could also cause a storm surge of up to 13 feet (4 meters) along the coast near where the center of circulation makes landfall.

Flood Watches are in effect for parts of the Cape York Peninsula and the North Tropical Coast of Queensland.

Tropical Cyclone Narelle Intensifies to Equivalent of Cat. 4 Hurricane

Tropical Cyclone Narelle intensified to the equivalent of a Category 4 hurricane on the Saffir-Simpson Scale on Wednesday.  At 11:00 p.m. EDT on Wednesday the center of Tropical Cyclone Narelle was located at latitude 13.6°S and longitude 147.2°E which put the center about 265 miles (425 km) north-northeast of Cairns, Australia.  Narelle was moving toward the west at 17 m.p.h. (28 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 947 mb.

The Australian Bureau of Meteorology issued a Warning for the east coast of the Cape York Peninsula that is in effect from Lockhart River to Cape Tribulation.  The Warning includes Coen and Cooktown.  A Warning is also in effect for the west coast of the Cape York Peninsula from Mapoon to Pormpuraaw.  That Warning includes Weipa.

A Watch is in effect for the portion of the west coast of the Gulf of Carpentaria from south of Nhulunbuy to Port Mcarthur.

A circular eye with a diameter of 12 miles (19 km) was present at the center of Tropical Cyclone Narelle.  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 center of Narelle’s circulation.  Storms near the center of Narelle generated upper level divergence that pumped mass away from the tropical cyclone.  The removal of mass caused the surface pressure to decrease.

The distribution of wind speeds around Tropical Cyclone Narelle was symmetrical.  Winds to hurricane/typhoon force extended out 45 miles (75 km) from the center of Narelle’s circulation.  Winds to tropical storm force extended out 125 miles (200 km) from the center of Tropical Cyclone Narelle.

The Hurricane Intensity Index (HII) for Tropical Cyclone Narelle is 25.1.  The Hurricane Size Index (HSI) is 17.1 and the Hurricane Wind Intensity Size Index (HWISI) is 42.2.  Tropical Cyclone Narelle is similar in intensity to Hurricane Harvey when Harvey hit Texas in 2017.  Narelle is bigger than Harvey was.

Tropical Cyclone Narelle will move through an environment that will be favorable for intensification during the next 12 hours.  Narelle will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge that is over the northern part of the Coral Sea.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Tropical Cyclone Narelle is likely to intensify during the next 12 hours.

Tropical Cyclone Narelle will move around the northern side of a high pressure system that is over the Coral Sea.   The high pressure system will steer Narelle toward the west during the next 24 hours.   On its anticipated track, Tropical Cyclone Narelle will approach the coast of Queensland near Cape Melville in 12 hours.

Tropical Cyclone Narelle will bring very strong winds and heavy rain to the northern part of the Cape York Peninsula later this week.  Narelle will be capable of causing severe damage.  Heavy rain is likely to cause flash floods in some locations.  Tropical Cyclone Narelle could also cause a storm surge of up to 13 feet (4 meters) along the coast near where the center of circulation makes landfall.

Flood Watches are in effect for parts of the Cape York Peninsula and the North Tropical Coast of Queensland.

Tropical Cyclone Tiffany Brings Wind and Rain to Northern Queensland

Tropical Cyclone Tiffany brought wind and rain to northern Queensland on Sunday night. At 10:00 p.m. EST on Sunday the center of Tropical Cyclone Tiffany was located at latitude 14.3°S and longitude 144.0°E which put it about 70 miles (110 km) east-southeast of Coen, Australia. Tiffany was moving toward the west-southwest at 8 m.p.h. (13 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 987 mb.

Warnings were in effect for the east coast of the Cape York Peninsula from Lockhart River to Cape Flattery and for the west coast of the Cape York Peninsula from Weipa to Kowanyama. A Watch was issued for the west coast of the Gulf of Carpentaria from Nhulunbuy to the border between the Northern Territory and Queensland. The Watch included Groote Eylandt.

The center of Tropical Cyclone Tiffany made landfall on the east coast of Queensland east-southeast of Coen on Sunday night. Tiffany was the equivalent of a strong tropical storm at the time of landfall. Bands of showers and thunderstorms in the western half of Tiffany’s circulation brought gusty winds to northern Queensland. Winds to tropical storm force extended out 70 miles (110 km) from the center of circulation. Tropical Cyclone Tiffany was also dropping locally heavy rain over parts of northern Queensland. A Minor Flood Warning was issued for the Daintree River and a Flood Warning was issued for the Mossman River.

Tropical Cyclone Tiffany will move around the northern side of a high pressure system over Australia. The high pressure system will steer Tiffany toward the west during the next several days. On its anticipated track Tropical Cyclone Tiffany will move across the Cape York Peninsula during the next 18 hours. Tiffany will weaken while it moves over land. In 18 hours the center of Tropical Cyclone Tiffany will move over the Gulf of Carpentaria. The Sea Surface Temperatures are near 31˚C in the Gulf of Carpentaria. So, Tiffany could strengthen when it moves back over water. An upper level ridge over Australia will produce easterly winds that will blow toward the top of Tiffany’s circulation. Those winds will cause vertical wind shear and they will inhibit intensification, but Tropical Cyclone Tiffany is forecast to intensify after it moves over the Gulf of Carpentaria.

Elsewhere over the South Pacific Ocean, Tropical Cyclone Cody was located southwest of Fiji. At 10:00 p.m. EST on Sunday the center of Tropical Cyclone 05P was located at latitude 20.1°S and longitude 176.1°E which put it about 150 miles (240 km) west-southwest of Tavuki, Fiji. Cody was moving toward the west-southwest at 5 m.p.h. (8 km/h). The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h). The minimum surface pressure was 994 mb.

Tropical Cyclone Tiffany Strengthens East of Cape York Peninsula

Tropical Cyclone Tiffany strengthened east of the Cape York Peninsula on Sunday morning. At 7:00 a.m. EST on Sunday the center of Tropical Cyclone Tiffany was located at latitude 13.9°S and longitude 145.9°E which put it about 120 miles (190 km) north-northeast of Cooktown, Australia. Tropical Cyclone was moving toward the west at 9 m.p.h. (14 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 990 mb.

A Warning was in effect for the portion of the east coast of the Cape York Peninsula from Cape Grenville to Cape Tribulation. A Watch was in effect for the west coast of the Cape York Peninsula from Gilbert River Mouth to Mapoon.

A former Tropical Low east of the Cape York Peninsula strengthened quickly on Sunday morning and the Australian Bureau of Meteorology designated the system as Tropical Cyclone Tiffany. More Thunderstorms developed near the center of Tiffany’s circulation. More thunderstorms also formed in bands revolving around the center of Tropical Cyclone Tiffany. Storms near the center of circulation generated upper level divergence that pumped mass away from the tropical cyclone. Winds to tropical storm force extended out 70 miles (110 km) from the center of Tiffany.

Tropical Cyclone Tiffany will move through an environment favorable for intensification during the next 12 hours. Tiffany will move over water where the Sea Surface Temperatures are near 30˚C. It will move under the northwestern part of an upper level ridge centered east of Australia. The ridge will produce easterly winds that will blow toward the top of the Tropical Low’s circulation. Those winds will cause some vertical wind shear, but the shear will not be strong enough to prevent intensification. The center of Tropical Cyclone Tiffany will pass near Cape Melville in 12 hours. If some of the circulation on the southern side of Tiffany passes over land, that could inhibit intensification.

Tropical Cyclone Tiffany will move north of a high pressure system over Australia. The high pressure system will steer Tiffany toward the west during the next 36 hours. On its anticipated track the center of Tropical Cyclone Tiffany will pass just north of Cape Melville in 12 hours. Tiffany will make landfall on the east coast of the Cape York Peninsula east of Coen within 24 hours. Tropical Cyclone Tiffany will bring gusty winds and locally heavy rain to northern Queensland. Heavy rain is likely to cause flash floods in some locations.

Elsewhere over the South Pacific Ocean, Tropical Cyclone 05P was spinning between Fiji and Vanuatu. At 4:00 a.m. EST on Sunday the center of Tropical Cyclone 05P was located at latitude 18.9°S and longitude 176.3°E which put it about 150 miles (240 km) west of Tavuki, Fiji. Tropical Cyclone 05P was moving toward the east-southeast at 13 m.p.h. (20 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 1000 mb.

Weaker Tropical Cyclone Ann Nears Northern Queensland

A weaker Tropical Cyclone Ann neared northern Queensland on Monday.  At 11:00 p.m. EDT on Monday the center of Tropical Cyclone Ann was located at latitude 14.4°S and longitude 148.4°E which put it about 230 miles (370 km) east-northeast of Cooktown, Australia.  Ann was moving toward the west-northwest at 14 m.p.h. (22km/h).  The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h).  The minimum surface pressure was 996 mb.  The Australian Bureau of Meteorology issued a Tropical Cyclone Warning that extended from Lockhart River to Cooktown including Coen and Lizard Island.

The circulation around Tropical Cyclone Ann weakened on Monday because of a drier, more stable environment and more vertical wind shear.  Low level convergence pulled drier, more stable air closer to the center of Tropical Cyclone Ann.  The drier, more stable air caused many of the stronger thunderstorms to weaken.  Despite the drier, more stable environment stronger thunderstorms redeveloped south of the center of circulation late on Monday.  Tropical Cyclone Ann was moving near the northwestern portion of an upper level ridge.  The ridge produced easterly winds which caused moderate vertical wind shear.  The wind shear also contributed to the weakening of storms in the northern half of the circulation.

Tropical Cyclone Ann continued to have a distinct low level center of circulation despite the less favorable environment.  However, the wind field exhibited a more asymmetric structure.  The strongest winds were occurring in an area of thunderstorms south of the center of circulation.  Winds to tropical storm force extended out about 100 miles (160 km) from the center in the southern half of the circulation.  Winds to tropical storm force only extended out about 50 miles (80 km) from the center in the northern half of the circulation.

Tropical Cyclone Ann will continue to move through a less favorable environment during the next 24 hours.  Ann will move over water in the Coral Sea where the Sea Surface Temperature is near 27.5°C.  It will continue to move through a region where there is drier, more stable air and the upper level ridge will continue to cause moderate vertical wind shear.  The drier, more stable air and moderate vertical wind shear will prevent significant intensification.  Tropical Cyclone Ann could maintain its intensity during the next 12 hours, but it may weaken when it approaches the coast of the Cape York Peninsula.

Tropical Cyclone Ann will move north of a ridge which will steer Ann toward the west-northwest.  On its anticipated track Tropical Cyclone Ann will make landfall on the Cape York Peninsula in northern Queensland in about 24 hours.  Ann will bring some gusty winds, but the greatest risk will be locally heavy rain.

Tropical Cyclone Ann Strengthens Over Coral Sea

Tropical Cyclone Ann strengthened over the Coral Sea on Sunday.  At 11:00 p.m. EDT on Sunday the center of Tropical Cyclone Ann was located at latitude 15.4°S and longitude 153.6°E which put it about 565 miles (910 km) east of Cairns, Australia.  Ann was moving toward the west-northwest at 15 m.p.h. (24 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 987 mb.

The circulation around Tropical Cyclone Ann exhibited greater organization on Sunday.  There were indications on satellite images that a cloud filled eye might be trying to form at the center of circulation.  A broken ring of thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms.  Several bands of showers and thunderstorms were revolving around the core of Tropical Cyclone Ann.  Storms near the core were generating upper level divergence which was pumping mass away from the tropical cyclone.  Winds to tropical storm force extended out about 100 miles (160 km) from the center of circulation.

Tropical Cyclone Ann will be moving through an environment that contains factors favorable for intensification and a factor that will inhibit potential intensification.  Ann will move over water where the Sea Surface Temperature is near 28°C.  So, there will be sufficient energy in the upper ocean to support intensification.  Tropical Cyclone Ann will move north of an upper level ridge.  The ridge will produce easterly winds which will blow toward the top of the circulation.  Those winds will cause some vertical wind shear, but the shear will not be strong enough to prevent intensification.  Tropical Cyclone Ann is surrounded by drier more stable air and the drier air is the factor that will inhibit intensification.  So far, the circulation around Ann has kept the drier air outside the tropical cyclone.  If the drier air remains outside the circulation, then Tropical Cyclone Ann would have a chance to strengthen.  However, if the drier air gets pulled into the circulation, then Ann will weaken.  The higher probability is that Tropical Cyclone Ann could maintain its intensity or weaken slowly during the next day or two depending on what happens to the drier air.

Tropical Cyclone Ann will move north of an area of high pressure, which will steer the tropical cyclone toward the west-northwest.  On its anticipated track Ann will approach the Cape York Peninsula north of Coen in less than 48 hours.  Tropical Cyclone Ann could bring gusty winds and locally heavy rain to northern Queensland.