Issued at 2100 GMT
Latest warning for 09L, 11L, 10E, 18W and 19W
Disturbance update
NORTHERN ATLANTIC OCEAN
HURRICANE Helene / 09L
Warning 14 from NHC at 2100 GMT
Position 27.9N 84.6W
Location 175 miles S of Tallahassee, Florida
Movement 025° (NNE) at 20 knots
Maximum sustained winds 110 knots gusting to 135 knots
Winds of 34 knots or higher occur within 310 miles of the centre
Winds of 64 knots or higher occur within 60 miles of the centre
Threatened landmasses Florida, Georgia, Carolinas
Minimum central pressure 951 mbar
Next warning from NHC at 0000 GMT
Regional warnings
Tropical storm Isaac / 10L
Warning 04 from NHC at 2100 GMT
Position 37.5N 50.6W
Location 880 miles ENE of Bermuda
Movement 080° (E) at 9 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 60 miles of the centre
Threatened landmasses Azores
Minimum central pressure 995 mbar
Next warning from NHC at 0300 GMT
EASTERN PACIFIC OCEAN
HURRICANE John / 10E
Warning 16 from NHC at 2100 GMT
Position 17.6N 102.8W
Location 50 miles SW of Lazaro Cardenas, Mexico
Movement 325° (NW) at 2 knots
Maximum sustained winds 65 knots gusting to 80 knots
Winds of 34 knots or higher occur within 150 miles of the centre
Winds of 64 knots or higher occur within 10 miles of the centre
Threatened landmasses Mexico
Minimum central pressure 979 mbar
Next warning from NHC at 0000 GMT
NORTHWESTERN PACIFIC OCEAN
Tropical depression Cimaron / 18W
Warning 10 from JTWC at 2100 GMT
Position 28.2N 131.8E
Location 236 miles ENE of Kadena AB, Okinawa
Movement 335° (NNW) at 2 knots
Maximum sustained winds 25 knots gusting to 35 knots
Threatened landmasses NONE
Minimum central pressure 1004 mbar
Maximum significant wave height 10 feet
Next warning from JTWC at 0300 GMT
Tropical depression 19W
Warning 02 from JTWC at 2100 GMT
Position 17.8N 146.1E
Location 498 miles SSE of Iwo To
Movement 330° (NNW) at 7 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses NONE
Minimum central pressure 1004 mbar
Maximum significant wave height 15 feet
Next warning from JTWC at 0300 GMT
TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1800 GMT
System 98L
Position 15.3N 37.7W
Minimum central pressure 1008 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 1800 GMT
System 97W
Position 21.1N 127.4E
Location 310 miles S of Kadena AB, Okinawa
Likelihood of tropical cyclone formation within 24 hours is now MEDIUM
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