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Tropical Cyclone Jasper Nears Queensland

Tropical Cyclone Jasper neared the coast of Queensland on Tuesday night. At 10:00 p.m. EST on Tuesday the center of Tropical Cyclone Jasper was located at latitude 15.8°S and longitude 146.1°E which put it about 90 miles (145 km) north-northeast of Cairns, Australia. Jasper 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 987 mb.

A Tropical Cyclone Warning was in effect for the portion of the coast from Cape Melville to Cardwell, Australia. The Tropical Cyclone Warning included Cairns, Cooktown, Innisfail, Chillagoe and Palmerville.

The center of Tropical Cyclone Jasper was approaching the coast of Queensland near Cape Tribulation on Tuesday night. Jasper was the equivalent of a strong tropical storm as it neared the coast. The inner end of a rainband wrapped around the center of Tropical Cyclone Jasper. Bands of showers and thunderstorms were revolving around the center of Jasper’s circulation. Storms near the center generated upper level divergence that pumped mass away from the tropical cyclone. Winds to tropical storm force extended out 90 miles (145 km) from the center of circulation.

Tropical Cyclone Jasper will move through an environment favorable for intensification during the next few hours until the center reaches the coast of Queensland. Jasper will move over water where the Sea Surface Temperatures are near 29°C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Tropical Cyclone Jasper could intensify a little before it makes landfall. There is a slight chance that Jasper could strengthen to the equivalent of a hurricane/typhoon.

Tropical Cyclone Jasper will move around the northern part of a high pressure system over eastern Australia and the Coral Sea. The high pressure system will steer Jasper toward the west during the next 24 hours. On its anticipated track, the center of Tropical Cyclone Jasper will reach the coast of Queensland between Cairns and Cooktown in a few hours. The center of Jasper is likely to reach the coast near Cape Tribulation. Tropical Cyclone Jasper could be the equivalent of a hurricane/typhoon when it reaches the coast.

Tropical Cyclone Jasper will bring strong winds and locally heavy rain to the coast of Queensland between Cairns and Cooktown. The strongest winds will occur between Cairns and Cooktown. Heavy rain could cause flash floods in some locations. A Flood Watch is in effect for the North Tropical Coast, parts of the Cape York Peninsula and Gulf Country. Heavy rain will spread inland over the Cape York Peninsula as Jasper moves farther to the west. Tropical Cyclone Jasper could cause a storm surge of up to seven feet (two meters) along the coast.

Tropical Cyclone Jasper Strengthens Again

Tropical Cyclone Jasper strengthened again on Monday as it approached the coast of Queensland. At 10:00 p.m. EST on Monday the center of Tropical Cyclone Jasper was located at latitude 16.3°S and longitude 147.6°E which put it about 145 miles (235 km) east-northeast of Cairns, Australia. Jasper was moving toward the west-northwest 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 986 mb.

A Tropical Cyclone Warning was in effect for the portion of the coast from Cape Flattery to Lucinda, Australia. The Tropical Cyclone Warning included Cairns, Cooktown, Innisfail and Chillagoe. A Tropical Cyclone Watch was in effect for the portion of the coast from Cape Melville to Cape Flattery, Australia. The Tropical Cyclone Watch included Palmerville.

Tropical Cyclone Jasper strengthened again on Monday. New thunderstorms developed in bands revolving around the center of Jasper’s circulation. The inner end of a rainband wrapped around the eastern and southern sides of the center of circulation. Storms near the center of Jasper generated upper level divergence that pumped mass away from the tropical cyclone. Winds to tropical storm force extended out 120 miles (195 km) from the center of Tropical Cyclone Jasper.

Tropical Cyclone Jasper will move through an environment somewhat favorable for intensification during the next 24 hours. Jasper will move over water where the Sea Surface Temperatures are near 29°C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. However, Jasper will still be in a region of drier air. The drier air will inhibit the formation of new thunderstorms. Tropical Cyclone Jasper is likely to intensify in spite of the drier air during the next 24 hours. Jasper could strengthen to the equivalent of a hurricane/typhoon.

Tropical Cyclone Jasper will move around the northern part of a high pressure system over eastern Australia and the Coral Sea. The high pressure system will steer Jasper toward the west during the next 24 hours. On its anticipated track, the center of Tropical Cyclone Jasper will reach the coast of Queensland between Cairns and Cooktown in 24 hours. Jasper could be the equivalent of a hurricane/typhoon when it reaches the coast.

Tropical Cyclone Jasper will bring strong winds and locally heavy rain to the coast of Queensland between Cairns and Cooktown. Heavy rain could cause flash floods in some locations. A Flood Watch is in effect for the North Tropical Coast, parts of the Cape York Peninsula and Gulf Country. Tropical Cyclone Jasper could cause a storm surge of up to seven feet (two meters) along the coast.

Tropical Cyclone Jasper Prompts Warning for Queensland

A potential risk posed by Tropical Cyclone Jasper prompted the Australian Bureau of Meteorology to issue a Tropical Cyclone Warning for a portion of the coast of Queensland on Sunday. At 10:00 p.m. EST on Sunday the center of Tropical Cyclone Jasper was located at latitude 17.8°S and longitude 149.8°E which put it about 300 miles (480 km) east-southeast of Cairns, Australia. Jasper was moving toward the west-southwest at 14 m.p.h. (22 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 992 mb.

A Tropical Cyclone Warning was in effect for the portion of the coast from Cooktown to Townsville, Australia. The Tropical Cyclone Warning included Cairns, Innisfail and Palm Island. A Tropical Cyclone Watch was in effect for the portion of the coast from Cape Melville to Cooktown, Australia. The Tropical Cyclone Watch included Palmerville and Chillagoe.

Tropical Cyclone Jasper weakened on Sunday as it continued to move closer to Queensland. Jasper moved into a region of sinking, drier air. The drier air mixed with the rainbands revolving around the center of Jasper’s circulation. The drier air reduced the relative humidity and most of the thunderstorms in Tropical Cyclone Jasper dissipated. Bands revolving around the center of circulation consisted primarily of showers and lower clouds. Tropical Cyclone Jasper still had a large, symmetrical circulation in the lower levels of the atmosphere. Winds to tropical storm force extended out 220 miles (350 km) from the center of Jasper’s circulation.

Tropical Cyclone Jasper will move through an environment marginally favorable for intensification during the next 24 hours. Jasper will move over water where the Sea Surface Temperatures are near 29°C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. However, Jasper will still be in the region of drier air. The drier air will continue to inhibit the formation of thunderstorms. Tropical Cyclone Jasper could intensify a little during the next 24 hours, if new thunderstorms develop near the center of circulation. On the other hand, if no new thunderstorms develop, then Jasper could weaken a little more.

Tropical Cyclone Jasper will move around the northern part of a high pressure system over the Coral Sea and Eastern Australia. The high pressure system will steer Jasper toward the west during the next 24 hours. On its anticipated track, the center of Tropical Cyclone Jasper will reach the coast of Queensland between Cairns and Cooktown in 48 hours.