Issued at 0940 GMT
Latest warnings for 09L, 11L, 10E, 19W
Final warning for 18W
First warning for 20W
Disturbance update
NORTHERN ATLANTIC OCEAN
Tropical storm Helene / 09L
Warning 16 from NHC at 0900 GMT
Position 32.8N 83.0W
Location 100 miles SE of Atlanta, Georgia
Movement 360° (N) at 26 knots
Maximum sustained winds 60 knots gusting to 75 knots
Winds of 34 knots or higher occur within 275 miles to the east of the centre
Threatened landmasses Florida, Georgia, Carolinas
Minimum central pressure 968 mbar
Next warning from NHC at 1200 GMT
Regional warnings
HURRICANE Isaac / 10L
Warning 06 from NHC at 0900 GMT
Position 37.0N 48.5W
Location 980 miles ENE of Bermuda
Movement 090° (E) at 10 knots
Maximum sustained winds 65 knots gusting to 80 knots
Winds of 34 knots or higher occur within 70 miles of the centre
Winds of 64 knots or higher occur within 15 miles of the centre
Threatened landmasses Azores
Minimum central pressure 981 mbar
Next warning from NHC at 1500 GMT
EASTERN PACIFIC OCEAN
Tropical storm John / 10E
Warning 18 from NHC at 0900 GMT
Position 17.8N 102.9W
Location 50 miles WSW of Lazaro Cardenas, Mexico
Movement 320° (NW) at 4 knots
Maximum sustained winds 55 knots gusting to 70 knots
Winds of 34 knots or higher occur within 160 miles of the centre
Threatened landmasses Mexico
Minimum central pressure 988 mbar
Next warning from NHC at 1200 GMT
NORTHWESTERN PACIFIC OCEAN
Tropical depression Cimaron / 18W
Warning 11 from JTWC at 0300 GMT
Position 28.6N 132.1E
Location 297 miles SSE of Sasebo, Japan
Movement 035° (NE) at 5 knots
Maximum sustained winds 25 knots gusting to 35 knots
Threatened landmasses NONE
Minimum central pressure 1005 mbar
Maximum significant wave height 10 feet
Next warning from JTWC at 0300 GMT
Tropical storm Jebi / 19W
Warning 04 from JTWC at 0900 GMT
Position 18.3N 144.8E
Location 436 miles SSE of Iwo To
Movement 315° (NW) at 7 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 90 miles to the southeast of the centre
Threatened landmasses NONE
Minimum central pressure 1002 mbar
Maximum significant wave height 14 feet
Next warning from JTWC at 1500 GMT
Tropical depression 20W
Philippines name Julian
Warning 01 from JTWC at 0900 GMT
Position 20.3N 126.3E
Location 381 miles SSW of Kadena AB, Okinawa
Movement 210° (SSW) at 8 knots
Maximum sustained winds 25 knots gusting to 35 knots
Threatened landmasses NONE
Minimum central pressure 1002 mbar
Maximum significant wave height 12 feet
Next warning from JTWC at 1500 GMT
Philippines warnings
TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1800 GMT
System 98L
Position 17.0N 41.6W
Minimum central pressure 1007 mbar
Likelihood of tropical cyclone formation within 48 hours is HIGH (90%)
Likelihood of tropical cyclone formation within 7 days is HIGH (90%)
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0900 GMT
System 97W is now 20W
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