18 September 2025 - bulletin 618

Issued at 1000 GMT
Latest warning for 23W and 07L
Disturbance update
NORTHERN ATLANTIC OCEAN
Tropical storm Gabrielle / 07L 
Warning 05 from NHC at 0900 GMT
Position 20.0N 50.3W
Location 845 miles E of the northern Leeward Islands
Movement 300° (WNW) at 13 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 240 miles of the centre
Threatened landmasses NONE
Minimum central pressure 1004 mbar 
Next warning from NHC at 1500 GMT

NORTHWESTERN PACIFIC OCEAN
Tropical depression Mitag / 23W 
Warning 09 from JTWC at 0900 GMT
Position 19.9N 117.4E
Location 230 miles SE of Hong Kong
Movement 275° (W) at 14 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses China
Minimum central pressure 1003  mbar 
Maximum significant wave height 12 feet
Next warning from JTWC at 1500 GMT

Hong Kong warnings

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 0600 GMT 
System No Invest Assigned 
Position 14N 13W 
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is LOW (20%)

NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0600 GMT
System 90W
Position 15.8N 133.4E 
Location 581 miles ENE of Legazpi, Philippines
Minimum central pressure 1005 mbar
Likelihood of tropical cyclone formation within 24 hours is now HIGH

System 91W
Position 23.5N 164.3E 
Location 282 miles NNW of Wake
Minimum central pressure 1001 mbar
Likelihood of tropical cyclone formation within 24 hours is now HIGH

EASTERN PACIFIC OCEAN
Update from NHC at 0600 GMT
System 96E
Position 15.8N 108.9W 
Minimum central pressure 1007 mbar
Likelihood of tropical cyclone formation within 48 hours is HIGH (80%)
Likelihood of tropical cyclone formation within 7 days is HIGH (90%)

No comments: