4 December 2025 - bulletin 839

Issued at 2100 GMT
Disturbance update
TROPICAL DISTURBANCE UPDATE
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 1800 GMT 
System 93W 
Position 11.4N 129.0E
Location 323 miles ESE of Legazpi, Philippines
Minimum central pressure 1004 mbar
Likelihood of tropical cyclone formation within 24 hours is MEDIUM

SOUTHERN PACIFIC OCEAN
Update from JTWC at 2100 GMT 
System 99P 
Position 21.8S 144.8W 
Location 364 miles SE of Papeete, Tahiti
Minimum central pressure 996 mbar
Likelihood of subtropical cyclone formation within 24 hours is LOW

System 90P 
Position 12.8S 151.4W 
Location 225 miles N of Bora Bora
Minimum central pressure 998 mbar
Likelihood of subtropical cyclone formation within 24 hours is HIGH

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