21 March 2017 - bulletin 138

Updated at 1750 GMT
Disturbance update


TROPICAL DISTURBANCE UPDATE
SOUTHERN INDIAN OCEAN
Update from JTWC at 1800 GMT
System 99S
Position 16.0S 116.8E
Location 150 miles NW of Rowley Shoals, Australia
Likelihood of tropical cyclone formation in the next 24 hours is now MEDIUM

Australian warnings


A tropical cyclone watch is in force from Wallal Downs to Onslow, including Port Hedland and Karratha.

System 90S
Position 11.0S 98.0E
Location 50 miles NE of Cocos Island
Likelihood of tropical cyclone formation in the next 24 hours is MEDIUM

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