23 March 2017 - bulletin 142

Updated at 0930 GMT
First warning for 12S


SOUTHERN INDIAN OCEAN
Tropical cyclone Caleb / 12S
Warning 01 from JTWC at 0900 GMT
Position 12.4S 100.6E
Location 215 miles E of Cocos Island
Movement 145° (SE) at 10 knots
Maximum sustained winds 40 knots gusting to 50 knots
Winds of 34 knots or higher occur within 75 to 105 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 13 feet
Next warning from JTWC at 2100 GMT

Caleb has formed east of Cocos Island and will move southeast, whilst intensifying only a little. Later, the storm will veer west and dissipate after 5 days.

TROPICAL DISTURBANCE UPDATE
SOUTHERN INDIAN OCEAN
Update from JTWC at 0900 GMT
System 90S is now 12S

SOUTHWESTERN PACIFIC OCEAN
Update from JTWC at 0600 GMT
System 91P
Position 13.5S 154.1E
Location 290 miles NE of Willis Island
Likelihood of tropical cyclone formation within 24 hours is  LOW

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