31 December 2011 - bulletin 750

SOUTHERN INDIAN OCEAN

Tropical cyclone 04S / Benilde

Warning 08 from JTWC at 2100 GMT
Position 15.9S 75.6E
Location 540 miles SSE of Diego Garcia
Movement 215° (SW) at 7 knots
Maximum sustained winds 90 knots gusting to 110 knots
Winds of 34 knots or higher occur within 95 to 100 miles of the centre
Winds of 64 knots or higher occur within 30 to 35 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 28 feet
Next warning from JTWC at 0900 GMT

Benilde is moving southwest and appears to have reached maximum intensity. The storm will weaken as it moves southwest, finally turning west to dissipate far south of Diego Garcia.

TROPICAL DISTURBANCE UPDATE
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0600 GMT
System 98W
Position 4.9N 104.2E
Location 220 miles N of Singapore
Likelihood of tropical cyclone formation is LOW

SOUTHERN INDIAN OCEAN 
Update from JTWC at 1800 GMT
System 98S
Position 9.7S 62.2E
Location 545 miles WSW of Diego Garcia
Likelihood of tropical cyclone formation is LOW

31 December 2011 - bulletin 749

SOUTHERN INDIAN OCEAN

Tropical cyclone 04S / Benilde

Warning 07 from JTWC at 0900 GMT
Position 14.7S 76.6E
Location 510 miles SSE of Diego Garcia
Movement 240° (WSW) at 8 knots
Maximum sustained winds 90 knots gusting to 110 knots
Winds of 34 knots or higher occur within 95 to 110 miles of the centre
Winds of 64 knots or higher occur within 20 to 25 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 25 feet
Next warning from JTWC at 2100 GMT

Benilde is moving westsouthwest, having strengthened rapidly. The storm will continue to intensify over the next 48 hours, whilst moving southeast. Increasingly adverse atmospheric conditions will then prompt a rapid weakening trend.

TROPICAL DISTURBANCE UPDATE
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0600 GMT
System 98W
Position 4.9N 104.2E
Location 220 miles N of Singapore
Likelihood of tropical cyclone formation is LOW

26 December 2011 - bulletin 748

AUSTRALIA
Tropical cyclone Grant / 03S
Warning 04 from JTWC for 1500 GMT
Position 15.3S 133.0E
Location 755 miles W of Cairns, Australia
Movement 155° (SSE) at 4 knots
Maximum sustaineds winds 25 knots gusting to 35 knots
Comparative strength Tropical depression
Threatened landmasses Australia: NT, Qld
Next warning from JTWC for 0300 GMT

Grant is veering east to reemerge over the Gulf of Carpentaria in a few days' time. The storm will restrengthen there, after which it will cross the York Peninsula into the Coral Sea.

Regional warnings
NONE at present

NORTHERN INDIAN OCEAN / Bay of Bengal
Tropical cyclone Thane / 06B
Warning 04 from JTWC for 2100 GMT
Position 11.6S 87.7E
Location 445 miles ESE of Chennai, India
Movement 315° (NW) at 7 knots
Maximum sustaineds winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 60 to 75 miles of the centre
Comparative strength Tropical storm
Threatened landmasses Andaman & Nicobar Islands; India: Tamil Nadu, Puducherry, Andhra Pradesh
Maximum significant wave height 14 feet
Next warning from JTWC for 0900 GMT

06B is slowly intensifying as it tracks towards the coast of southern India. Landfall there will occur on Thursday.

Regional warnings

Please monitor output from RSMC New Delhi

TROPICAL DISTURBANCE UPDATE

SOUTHERN INDIAN OCEAN

Update from JTWC for 1800 GMT

System 96S

Position 8.1S 94.6E

Location 220 miles NW of the Cocos Islands

Likelihood of tropical cyclone formation is LOW

26 December 2011 - bulletin 747

AUSTRALIA
Tropical cyclone Grant / 03S
Warning 03 from JTWC for 0300 GMT
Position 13.1S 132.7E
Location 105 miles ESE of Darwin, Australia
Movement 180° (S) at 8 knots
Maximum sustaineds winds 25 knots gusting to 35 knots
Comparative strength Tropical depression
Threatened landmasses Australia: NT, Qld
Next warning from JTWC for 1500 GMT

Grant has made landfall east of Darwin and will veer east to reemerge over the Gulf of Carpentaria in a few days' time. The storm will restrengthen there, after which it will cross the York Peninsula into the Coral Sea.

Regional warnings
All warnings for Northern Territories have been cancelled.

NORTHERN INDIAN OCEAN / Bay of Bengal
Tropical cyclone 06B
Warning 03 from JTWC for 0900 GMT
Position 10.3S 88.5E
Location 505 miles ESE of Chennai, India
Movement 350° (N) at 6 knots
Maximum sustaineds winds 40 knots gusting to 50 knots
Comparative strength Tropical storm
Threatened landmasses India: Tamil Nadu, Puducherry, Andhra Pradesh
Maximum significant wave height 12 feet
Next warning from JTWC for 1500 GMT

06B formed overnight and is slowly intensifying as it tracks west towards the coast of southern India,

25 December 2011 - bulletin 746

AUSTRALIA
Tropical cyclone Grant / 03S
Warning 29 from BOM for 1900 GMT
Position 12.1S 132.4E
Location 150 miles NE of Darwin, Australia
Movement 205° (SSW) at 7 knots
Maximum sustaineds winds 30 knots gusting to 40 knots
Comparative strength Tropical storm
Threatened landmasses Australia, NT
Next warning from BOM Australia at 0100 GMT
Next warning from JTWC for 0300 GMT

Grant has made landfall on the Cobourg Peninsula and will cross the Van Diemen Gulf to traverse Arnhem Land before reemerging over the Gulf of Carpentaria. The storm will restrengthen there, after which it will cross the York Peninsula into the Coral Sea.

Regional warnings
A Cyclone WARNING is current for coastal areas from Cape Hotham to Maningrida, including Oenpelli, Jabiru and Melville Island east of Snake Bay

Detailed warnings on this link from BOM Australia

TROPICAL DISTURBANCE UPDATE
NORTHERN INDIAN OCEAN
Update from JTWC for 1800 GMT
System 92B
Position 9.2N 88.0E
Location 500 miles ENE of Colombo, Sri Lanka
Likelihood of tropical cyclone formation is HIGH
This system is subject to a tropical cyclone formation alert

25 December 2011 - bulletin 745

AUSTRALIA
Tropical cyclone Grant / 03S
Warning 02 from JTWC for 1500 GMT
Position 11.5S 132.8E
Location 150 miles NE of Darwin, Australia
Movement 165° (SSE) at 4 knots
Maximum sustaineds winds 35 knots gusting to 45 knots
Comparative strength Tropical storm
Threatened landmasses Australia, NT
Next warning from BOM Australia at 1200 GMT
Next warning from JTWC for 0300 GMT

Grant has made landfall on the Cobourg Peninsula and will cross the Van Diemen Gulf to traverse Arnhem Land before reemerging over the Gulf of Carpentaria. The storm will restrengthen there, after which it will cross the York Peninsula into the Coral Sea.

Regional warnings
A Cyclone WARNING is current for coastal areas from Darwin to Milingimbi, including the Tiwi Islands, Darwin and inland to Jabiru and Oenpelli.

A Cyclone WATCH continues for coastal areas from Milingimbi to Nhulunbuy.

Detailed warnings on this link from BOM Australia

TROPICAL DISTURBANCE UPDATE
NORTHERN INDIAN OCEAN
Update from JTWC for 1130 GMT
System 92B
Position 9.6N 86.6E
Location 430 miles ENE of Colombo, Sri Lanka
Likelihood of tropical cyclone formation is upgraded to HIGH
This system is now subject to a tropical cyclone formation alert

25 December 2011 - bulletin 744

AUSTRALIA
Tropical cyclone Grant / 03S
Warning 01 from JTWC for 0300 GMT
Position 10.7S 132.7E
Location 150 miles NE of Darwin, Australia
Movement 060° (NE) at 6 knots
Maximum sustaineds winds 40 knots gusting to 50 knots
Comparative strength Tropical storm
Winds of 34 knots or higher occur within 40 to 60 miles of the centre
Threatened landmasses Australia, NT
Next warning from BOM Australia at 1200 GMT
Next warning from JTWC for 1500 GMT

Grant has formed just off the Top End of Australia. The storm will cross the Cobourg Peninsula into the Van Diemen Gulf. It will again make landfall to the east of Darwin at 55 knots, then traverse Arnhem Land before reemerging over the Gulf of Carpentaria.

Regional warnings
A Cyclone WARNING is current for coastal areas from Dundee Beach to Milingimbi
including the Tiwi Islands, Darwin and inland to Jabiru and Oenpelli.

A Cyclone WATCH continues for coastal areas from Milingimbi to Nhulunbuy.

Detailed warnings on this link from BOM Australia

TROPICAL DISTURBANCE UPDATE
NORTHERN INDIAN OCEAN
Update from JTWC for 0400 GMT
System 92B
Position 7.9N 86.0E
Location 365 miles E of Colombo, Sri Lanka
Likelihood of tropical cyclone formation is MEDIUM