Earth Snapshot RSS Feed Twitter
 
 
 
 

Posts tagged Tropical Low

Area of Convection Off Australia Coast Has High Probability of Becoming Tropical Cyclone

13.6S 118.3E

January 7th, 2013 Category: Tropical Storms

Area of Convection – January 6th, 2013

Enhanced image

Track of Area of Convection - January 6th, 2013 © Univ. of Wisconsin

Track of Area of Convection

The formation of a significant tropical cyclone is possible in the Timor Sea, off the coast of Australia, within 120 nm either side of a line from 11.1S 121.5E to 13.4S 118.2E within the next 12 to 24 hours.

Winds in the area are estimated to be 25 to 30 knots. METSAT imagery indicates that a circulation center is located near 11.4S 120.9E. The system is moving westward at 09 knots.

The area of convection previously located near 11.0S 123.5E  (click here for previous images) is now located near 11.4S 120.9E, approximately 590 nm west of Darwin, Australia. Recent multispectral and enhanced infrared satellite imagery shows a consolidation of convection, with fragmented bands wrapping around a low level circulation center (LLCC).

Upper level analysis indicates this area is approximately five degrees north of an anticyclone, providing good outflow and low (10 knots) vertical wind shear. Additionally, as the system moves southward, strong gradient-induced upper level winds moving into the southwestern region of Australia should further enhance the outflow over the next 24 hours.

Sea surface temperatures are a very favorable 30-31 degrees celsius. Maximum sustained surface winds are estimated at 25 to 30 knots. Minimum sea level pressure is estimated to be near 1001 mb. Due to increased consolidation of the LLCC, the potential for the development of a significant tropical cyclone within the next 24 hours is high.

Tropical Low Off Coast of Australia

14.1S 122.5E

January 7th, 2013 Category: Tropical Storms

Area of Convection – January 6th, 2013

Enhanced image

Track of Area of Convection - January 6th, 2013 © Univ. of Wisconsin

Track of Area of Convection

On 5 January, TCWC Darwin reported that a weak tropical low had formed within the Timor Sea about 160 km (100 mi) to the southeast of Dili in Timor-leste. The low has a medium chance of becoming a tropical cyclone and is being closely monitored.

Tropical Low 17U Expected to Strengthen, Australia

17.9S 140.6E

March 18th, 2012 Category: Tropical Storms

Tropical Low 17U - March 17th, 2012

Enhanced image

Track of Tropical Low 17U - March 17th, 2012 © Univ. of Wisconsin

Track of Tropical Low 17U

On March 14, Tropical Low 17U is expected to move to the southwest over the next 24 to 30 hours over Gulf of Carpentaria waters where it is likely to develop into a tropical cyclone during the day.

Gales are expected to affect coastal areas between the Northern Territory – Queensland border and Pormpuraaw during the day. Gales may develop between Port McArthur and the border area, including Borroloola late today, only if the cyclone moves further westwards.

Heavy rain that may lead to flash flooding is expected about the Gulf of Carpentaria coast and adjacent inland areas between the Northern Territory – Queensland border and Pormpuraaw. Water levels on the high tide could also exceed the highest tide of the year about the Gulf of Carpentaria coast and islands between the border area and Pormpuraaw.

Tropical Low 17U Showing Signs of Intensification, Australia

17.6S 137.7E

March 17th, 2012 Category: Tropical Storms

Tropical Low 17U - March 16th, 2012

Enhanced image

Track of Tropical Low 17U - March 16th, 2012 © Univ. of Wisconsin

Track of Tropical Low 17U

On March 14, Tropical Low 17U slowly began to weaken as the storm made landfall on the northeastern border of Western Australia.

Several hours later, 17U made a second landfall over the northwestern border of the Northern Territory. Afterwards, TCWC Darwin issued their last bulletin on the storm as it degenerated into a weak low. During the next several hours, 17U continued moving eastwards deep into the Northern Territory while maintaining its intensity.

Late on March 15, 17U crossed over into Northern Queensland with the northern part of the storm emerging into the southern part of the Gulf of Carpentaria. Early on March 17, 17U made it’s second landfall over Howitt, Queensland, Australia, while showing signs of intensification.

Tropical Low 17U by Northern Territory and Western Australia

13.8S 131.4E

March 15th, 2012 Category: Tropical Storms

Tropical Low 17U - March 14th, 2012

Enhanced image

Track of Tropical Low 17U - March 14th, 2012 © Univ. of Wisconsin

Track of Tropical Low 17U

On March 9, an area of low pressure developed to the north of Kimberley. Over the next 3 days, the low moved into the Timor Sea, as the storm slowly intensified.

On March 12, TCWC Darwin reported that the storm had intensified into a tropical low, and gave it the identification 17U. As the storm approached the northern coast of Western Australia, it continued to intensify slowly. On March 14, Tropical Low 17U slowly began to weaken, as the storm made landfall on the northeastern border of Western Australia. Several hours later, 17U made a second landfall over the northwestern border of the Northern Territory. Afterwards, TCWC Darwin issued their last bulletin on the storm, as it degenerated into a weak low.