31 August 2026 - bulletin 603

Issued at 1500 GMT
Latest warnings for 11E and 12E 
First warning for 05L
Disturbance update

NORTHERN ATLANTIC OCEAN
Potential tropical cyclone 05L
Warning 01 from NHC at 1500 GMT
Position 27.8N 91.0W
Location 230 miles SE of Port Arthur, Texas
Movement 285° (WNW) at 4 knots
Maximum sustained winds 30 knots gusting to 40 knots
Minimum central pressure 1013 mbar
Threatened landmasses Louisiana, Texas
Next warning from NHC at 1800 GMT
Likelihood for tropical cyclone formation within 48 hours / 7 days is HIGH (80%)

Regional warnings

EASTERN PACIFIC OCEAN
HURRICANE Karina / 11E
Warning 17 from NHC at 1500 GMT
Position 17.4N 125.1W
Location 1055 miles WSW of the southern tip of Baja California
Movement 275° (W) at 8 knots
Maximum sustained winds 120 knots gusting to 145 knots
Winds of 34 knots or higher occur within 115 miles of the centre
Winds of 64 knots or higher occur within 30 miles of the centre
Minimum central pressure 950 mbar
Threatened landmasses NONE
Next warning from NHC at 2100 GMT

Mexican warnings

CENTRAL PACIFIC OCEAN
Tropical storm Lowell / 12E
Warning 16 from CPHC at 1500 GMT
Position 12.8N 145.7W
Location 785 miles SE of Hilo, Hawaii
Movement 260° (W) at 12 knots
Maximum sustained winds 55 knots gusting to 70 knots
Winds of 34 knots or higher occur within 90 miles of the centre
Minimum central pressure 995 mbar
Threatened landmasses Hawaii
Next warning from CPHC at 2100 GMT

Hawaiian warnings

TROPICAL DISTURBANCE UPDATE

NORTHERN ATLANTIC OCEAN
Update from NHC at 1800 GMT
System 04L 
Position 19.4N 69.3W
Minimum central pressure 1013 mbar
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is LOW (20%)

System 97L is now 05L

EASTERN PACIFIC OCEAN
Update from NHC at 0600 GMT
System 95E
Position 12.0N 107.5W
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%)

CENTRAL PACIFIC OCEAN

Update from CPHC at 0600 GMT
System No Invest Assigned 
Position 12N 168W
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is LOW (30%)

NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0730 GMT

System 94W
Position 21.6N 132.7E
Location 268 miles SSE of Minami Daito Jima
Minimum central pressure 1001 mbar
Likelihood of tropical cyclone formation within 24 hours is HIGH

System 96W
Position 22.7N 117.8E
Location 247 miles SW of Taipei, Taiwan
Minimum central pressure 998 mbar
Likelihood of tropical cyclone formation within 24 hours is MEDIUM

System 17W
Position 20.1N 110.2E
Location 7 miles NW of Haikou, China
Minimum central pressure 997 mbar
Likelihood of tropical cyclone formation within 24 hours is MEDIUM

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