19 September 2026 - bulletin 661

Issued at 1500 GMT
Latest warning for 24W
First warning for 06L
Disturbance update

---

NORTHWESTERN PACIFIC OCEAN
TYPHOON Dujuan / 24W
Warning 17 from JTWC at 1500 GMT
Position 27.8N 138.2E
Location 456 miles S of Yokosuka, Japan
Movement 315° (NW) at 11 knots
Maximum sustained winds 65 knots gusting to 80 knots
Winds of 34 knots or higher occur within 100 to 220 miles of the centre
Winds of 64 knots or higher occur within 15 miles of the centre
Minimum central pressure 980 mbar
Threatened landmasses Japan
Maximum significant wave height 30 feet
Next warning from JTWC at 2100 GMT

NORTHERN ATLANTIC OCEAN
Tropical depression 06L
Warning 01 from NHC at 1500 GMT
Position 32.6N 33.6W
Location 525 miles SW of the Azores
Movement 360° (N) at 1 knot
Maximum sustained winds 30 knots gusting to 40 knots
Minimum central pressure 1009 mbar
Threatened landmasses NONE
Next warning from NHC at 2100 GMT

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1500 GMT
System 99L is now 06L

EASTERN PACIFIC OCEAN
Update from NHC at 0600 GMT
System 15E 
Position 17.1N 138.9W 
Minimum central pressure 1008 mbar
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 7 days is MEDIUM (50%)

System 98E
Position 12.1N 119.7W 
Minimum central pressure 1009 mbar
Likelihood of tropical cyclone formation within 48 hours is HIGH (80%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

System 99E
Position 9.4N 105.9W 
Minimum central pressure 1009 mbar
Likelihood of tropical cyclone formation within 48 hours is HIGH (70%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

19 September 2026 - bulletin 660

Issued at 1000 GMT
Latest warning for 24W
Disturbance update

---

NORTHWESTERN PACIFIC OCEAN
TYPHOON Dujuan / 24W
Warning 16 from JTWC at 0900 GMT
Position 27.0N 139.1E
Location 499 miles S of Yokosuka, Japan
Movement 325° (NW) at 10 knots
Maximum sustained winds 65 knots gusting to 80 knots
Winds of 34 knots or higher occur within 100 to 220 miles of the centre
Winds of 64 knots or higher occur within 15 miles of the centre
Minimum central pressure 978 mbar
Threatened landmasses Japan
Maximum significant wave height 30 feet
Next warning from JTWC at 1500 GMT

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1800 GMT
System 99L
Position 32.6N 33.6W 
Minimum central pressure 1015 mbar
Likelihood of tropical cyclone formation within 48 hours is HIGH (80%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

EASTERN PACIFIC OCEAN
Update from NHC at 0600 GMT
System 15E 
Position 17.1N 138.9W 
Minimum central pressure 1008 mbar
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 7 days is MEDIUM (50%)

System 98E
Position 12.1N 119.7W 
Minimum central pressure 1009 mbar
Likelihood of tropical cyclone formation within 48 hours is HIGH (80%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

System 99E
Position 9.4N 105.9W 
Minimum central pressure 1009 mbar
Likelihood of tropical cyclone formation within 48 hours is HIGH (70%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

18 September 2026 - bulletin 659

Issued at 2145 GMT
Latest warning for 24W
Disturbance update

---

NORTHWESTERN PACIFIC OCEAN
TYPHOON Dujuan / 24W
Warning 14 from JTWC at 2100 GMT
Position 26.2N 140.7E
Location 548 miles S of Yokosuka, Japan
Movement 310° (NW) at 11 knots
Maximum sustained winds 65 knots gusting to 80 knots
Winds of 34 knots or higher occur within 110 to 230 miles of the centre
Winds of 64 knots or higher occur within 10 miles to the north of the centre
Minimum central pressure 977 mbar
Threatened landmasses Japan
Maximum significant wave height 28 feet
Next warning from JTWC at 0300 GMT

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1800 GMT
System 99L
Position 33.3N 33.8W 
Minimum central pressure 1016 mbar
Likelihood of tropical cyclone formation within 48 hours is HIGH (70%)
Likelihood of tropical cyclone formation within 7 days is HIGH (70%)

EASTERN PACIFIC OCEAN
Update from NHC at 1800 GMT
System 15E 
Position 16.0N 136.7W 
Minimum central pressure 1008 mbar
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 7 days is MEDIUM (40%)

System 98E
Position 11.4N 117.9W 
Minimum central pressure 1009 mbar
Likelihood of tropical cyclone formation within 48 hours is HIGH (70%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

System 99E
Position 7.0N 105.8W 
Minimum central pressure 1010 mbar
Likelihood of tropical cyclone formation within 48 hours is MEDIUM (40%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

18 September 2026 - bulletin 658

Issued at 1545 GMT
Disturbance update

---

NORTHWESTERN PACIFIC OCEAN
Tropical storm Dujuan / 24W
Warning 13 from JTWC at 1500 GMT
Position 25.4N 141.7E
Location 42 miles NNE of Iwo To
Movement 270° (W) at 11 knots
Maximum sustained winds 60 knots gusting to 75 knots
Winds of 34 knots or higher occur within 110 to 230 miles of the centre
Minimum central pressure 980 mbar
Threatened landmasses Japan
Maximum significant wave height 26 feet
Next warning from JTWC at 2100 GMT

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1430 GMT
System 99L
Position 33.0N 34.2W 
Minimum central pressure 1017 mbar
Likelihood of tropical cyclone formation within 48 hours is MEDIUM (60%)
Likelihood of tropical cyclone formation within 7 days is MEDIUM (60%)

EASTERN PACIFIC OCEAN
Update from NHC at 1200 GMT
System 15E 
Position 15.5N 136.0W 
Minimum central pressure 1006 mbar
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 7 days is MEDIUM (40%)

System 98E
Position 12.0N 118.0W 
Minimum central pressure 1009 mbar
Likelihood of tropical cyclone formation within 48 hours is MEDIUM (60%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

System 99E
Position 8.8N 103.1W 
Likelihood of tropical cyclone formation within 48 hours is LOW (20%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

18 September 2026 - bulletin 657

Issued at 1420 GMT
Latest warnings for 24W
Disturbance update

---

NORTHWESTERN PACIFIC OCEAN
Tropical storm Dujuan / 24W
Warning 13 from JTWC at 1500 GMT
Position 25.4N 141.7E
Location 42 miles NNE of Iwo To
Movement 270° (W) at 11 knots
Maximum sustained winds 60 knots gusting to 75 knots
Winds of 34 knots or higher occur within 110 to 230 miles of the centre
Minimum central pressure 980 mbar
Threatened landmasses Japan
Maximum significant wave height 26 feet
Next warning from JTWC at 2100 GMT

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1200 GMT
System 98L is no longer suspect for tropical cyclone formation

System 99L
Position 33.0N 34.2W 
Minimum central pressure 1017 mbar
Likelihood of tropical cyclone formation within 48 hours is LOW (20%)
Likelihood of tropical cyclone formation within 7 days is LOW (30%)

EASTERN PACIFIC OCEAN
Update from NHC at 1200 GMT
System 15E 
Position 15.5N 136.0W 
Minimum central pressure 1006 mbar
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 7 days is MEDIUM (40%)

System 98E
Position 12.0N 118.0W 
Minimum central pressure 1009 mbar
Likelihood of tropical cyclone formation within 48 hours is MEDIUM (60%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

System 99E
Position 8.8N 103.1W 
Likelihood of tropical cyclone formation within 48 hours is LOW (20%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)