4 January 2026 - bulletin 11

Issued at 1030 GMT
Latest warning for 09S

SOUTHERN INDIAN OCEAN
Tropical cyclone Grant / 09S 
Warning 36 from JTWC at 0300 GMT
Position 15.5S 62.8E
Location 418 miles NE of Port Louis, Mauritius
Movement 255° (WSW) at 8 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses Madagascar
Minimum central pressure 1002 mbar
Maximum significant wave height 15 feet
Next warning from JTWC at 1500 GMT

TROPICAL DISTURBANCE UPDATE
SOUTHERN INDIAN OCEAN
Update from JTWC at 1800 GMT 
System 91S 
Position 8.1S 91.6E 
Location 395 miles NW of the Cocos Islands 
Likelihood of tropical cyclone formation within 24 hours is now HIGH

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